US20080197130A1 - Multilevel sheet metal container with outwardly beaded end faces - Google Patents
Multilevel sheet metal container with outwardly beaded end faces Download PDFInfo
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- US20080197130A1 US20080197130A1 US12/148,429 US14842908A US2008197130A1 US 20080197130 A1 US20080197130 A1 US 20080197130A1 US 14842908 A US14842908 A US 14842908A US 2008197130 A1 US2008197130 A1 US 2008197130A1
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- Prior art keywords
- face
- shape retaining
- retaining ring
- beaded
- container
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/005—Large containers of variable capacity, e.g. with movable or adjustable walls or wall parts, modular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/02—Large containers rigid
- B65D88/06—Large containers rigid cylindrical
- B65D88/08—Large containers rigid cylindrical with a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/023—Modular panels
- B65D90/024—Modular panels with features of cylindrical curvature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/08—Interconnections of wall parts; Sealing means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/60—Devices for separating the materials from propellant gas
Definitions
- the subject matter of the present invention relates to a multilevel sheet metal container with outwardly beaded end faces.
- the container utilizes a unique sealing configuration and sealing ring between container levels or regions.
- Multilevel containers made of sheet metal are known in which the butt joints are reinforced with massive flanges. These flanges are welded to the circumference of the container wall. Compared to these known containers, the generic multilevel containers with beaded end faces have the advantage that they can be produced much less expensively.
- the conventionally known beaded areas are reinforced in a bridge-like manner by means of multiple beads in alternating directions.
- these reinforcements have the disadvantage that they form grooves in which the material stored in the container can be trapped. For reasons of hygiene, this is undesirable, especially in food and pharmaceutical applications.
- the problem to be solved by the present invention is to provide a generic multilevel container so as to be robust, but without flanges that need to be welded onto the butt joints, so that no beading folds or grooves can form in which the material stored in the container can be trapped or accumulated.
- the present invention provides a separate and independent shape retaining ring which reinforces the container.
- the shape retaining ring has on both of its end faces, shape-retaining surfaces with which the neighboring wall and bottom elements that are made of container sheet metal are reinforced directly in the area of their radially outwardly beaded end faces.
- One or a plurality of additionally disposed sealing ring(s) is (are) separately braced radially inside or radially outside of the reinforcing shape-retaining ring between the outwardly beaded end faces (made of sheet metal) of the neighboring bottom or wall elements of the multilevel container or (individually) between these end faces and the reinforcing shape-retaining ring.
- the present invention provides a readily producible and simply constructed multilevel container in which the neighboring bottom and wall elements are connected to each other by means of a direct, in particular metal, contact. While ensuring high stiffness, the invention also provides for a lightweight construction and modular design. In the container surface area which comes into contact with the product contained therein, in particular along the butt joints, dead spaces can be eliminated or avoided. This ensures that relatively high and in many instances, the highest, hygiene requirements are met. In addition, this configuration promotes easy cleaning of the container and its interior surfaces.
- the present invention avoids the broader problems arising with the known multilevel, i.e., modularly designed, containers, such as electrostatic charges and shear deformation of seals during operation under a vacuum, as well as shape-retaining problems caused by an uneven distribution of the load on the collets and centering problems. Since in the stacking joint design according to the present invention the end faces of the neighboring container wall and bottom elements are made of the same sheet metal, of which the container jacket and container bottom are made, i.e., of sheet metal with a wall thickness of less than about 10 mm, and especially less than 4 mm, it is easy and efficient to manufacture the modules.
- the unavoidably present tolerances during sheet metal forming (beading) are not critical, and a precise stacking height can be maintained. This stacking height does not alter even when excess and reduced pressure is applied. Accordingly, the container is stable in height and length.
- the separate and independent shape-retaining ring provides shape-retaining end faces which reinforce the container.
- the shape retaining ring exerts its supporting function especially along the radially outwardly beaded flanges on the end faces of the preferably circumferentially continuous bottom or wall elements of the multilevel container.
- the shape retaining ring can be manufactured by either metal cutting from solid or tubular material or by any molding or casting technique or die-casting technique with or without a mechanical aftertreatment. Materials to be considered, in addition to metal and metal alloys, are synthetics with or without reinforcements.
- the radially outwardly beaded flange region on the end faces of neighboring bottom or wall elements can be fitted with collar-like reinforcement bridges which surround the wall or bottom element and which are also formed by beading the sheet metal of the container.
- FIG. 1A shows a first embodiment of a multilevel container comprising one upper bottom element and four wall elements in a schematic axial section view;
- FIG. 1B shows a second embodiment of a multilevel container comprising one upper bottom element and two wall elements in an axial section view;
- FIGS. 2A through 2D show a vertical section of portions of a butt joint of neighboring container elements with radially outwardly located profile sealing rings, with FIG. 2A showing a basic embodiment of the reinforcing shape retaining ring, FIG. 2B showing the shape retaining ring with a welded on filter plate, FIG. 2C showing the shape retaining ring with an inserted funnel (welding joint not shown), and FIG. 2D showing the shape retaining ring with the filter plate inserted but not welded on;
- FIGS. 3A and 3B show a different embodiment of the shape retaining ring with a dovetail configuration for mounting a profile sealing ring that is located inside, with FIG. 3A showing a basic form and FIG. 3B showing an embodiment with a reinforcing element for a funnel mount that is formed by the sealing ring;
- FIG. 4 shows a modification of the shape retaining ring according to FIGS. 3A and 3B , with a collar for supporting a profile seal designed in a funnel like shape;
- FIG. 5 shows another alternative of a shape retaining ring with a dovetail design in an embodiment in which the diameter is reinforced
- FIGS. 6A through 6C show three different embodiments of the beaded end faces of neighboring container or bottom elements, with FIG. 6A providing a short and FIG. 6C a long one sided collar and with FIG. 6B providing maze like overlapping collars on both sides;
- FIGS. 7A and 7B show a shape retaining ring with contour surfaces which, up to the bent regions, conform to the metal beading, with FIG. 7A showing container/bottom elements with collars on both ends and FIG. 7B showing said elements without collars;
- FIG. 8 shows a shape retaining ring with separate mounts on both ends for one sealing ring each
- FIGS. 9A through 9C show a shape retaining ring with radii on the end face and with different slopes of the end faces of the shape retaining ring and the container end faces so as to be able to exert increased clamping forces, with the clamping surfaces of the bracing rings in FIG. 9A being radially located far inside, in FIG. 9B being distributed over a large radius, and in FIG. 9C being radially located far outside;
- FIG. 10 shows a bracing ring with clamping surfaces radially located far outside
- FIGS. 12A through 12D show a two part shape retaining ring with a disk valve (discharge flap), with FIG. 12A showing a section through the disk valve along the axis of rotation, FIG. 12B showing an enlarged detail of FIG. 12A , FIG. 12C showing a section at right angles to the axis of rotation, and FIG. 12 D showing an enlarged detail of FIG. 12C .
- the five level container 10 with container levels 10 A through 10 E shown in FIG. 1A comprises four identical cylindrical, circumferentially continuous wall elements 12 A and a pot-like bottom element 12 B on its upper end.
- the lowermost wall element 12 A serves merely as a supporting stand for mounting a discharge funnel 24 ′′ which, on its tapered end, supports a throttle valve 26 .
- Both this lower funnel 24 ′′ as well as funnel 24 ′ located higher up and filter element 28 are supported on the radial inside surface of one shape retaining ring each.
- the funnels and the filter element can be continuously connected along the circumference to shape retaining ring 20 as described below, e.g., by means of welding.
- the butt-joints of container levels 10 A through 10 E are designed as shown in greater detail in FIGS. 2A through 2D and will be described below on the basis of FIG. 2A .
- FIG. 1A shows, it is possible to provide container level 10 C which serves as a cyclone so as to cause a coarse separation of the conveying fluid and the material conveyed.
- the cyclone element 24 ′ used for this purpose is circumferentially continuously connected, in particular welded, to a shape retaining ring 20 as is described below.
- level 10 B can be designed so as to be higher then container level 10 C. Due to the height of the discharge unit, this also applies to a potentially higher container level 10 A.
- these can be provided with circumferentially continuous crimps 15 which are formed in one piece from the material of wall element 12 A.
- FIG. 1B shows another example of the diverse modular configuration of multilevel containers according to the present invention.
- filter plate 28 A holds a filter generally identified by reference numeral 28 and that the filter plate is connected in a circumferentially sealing fashion to shape retaining ring 20 A, which will be described below, so that above filter plate 28 A, a suction chamber 30 A forms in bottom element 12 B, which suction chamber is fluidically connected via a suction opening 30 B and suction line 30 C to vacuum pump 30 and is fitted with conventional seals. Because of the permeability of filter 28 to fluids, a vacuum is generated in the intermediate storage space 30 D located underneath filter 28 when vacuum pump 30 operates and throttle valve 26 of discharge funnel 24 ′′ is closed.
- the vacuum can be extended by conventional means via outlet opening 25 A provided in wall element 12 A and an associated, preferably tangentially disposed intake stub 25 into a storage space (not shown) for material to be conveyed.
- This type of basic configuration of an intermittently operating vacuum conveying device is actually known.
- the circumferential butt joints of the jacket surface of the neighboring container levels 10 A, 10 C and 10 E can be designed in a manner described with reference to the following figures (beginning with FIG. 2 ).
- vacuum pump 30 can be disposed in a conventional manner directly on the upper bottom element 12 B.
- Filter element 28 can be so called filter candles which can be attached to and suspended in a conventional manner from filter plate 28 .
- wall elements 12 A and bottom element 12 B are made in one piece from sheet metal with a wall thickness of approximately 1 to 4 mm by means of a conventional forming process, such as roll forming, in the course of which beaded end faces 14 are manufactured which have lower ( 14 A) and upper ( 14 B) end faces as contact surfaces.
- a conventional forming process such as roll forming
- beaded end faces 14 are manufactured which have lower ( 14 A) and upper ( 14 B) end faces as contact surfaces.
- a separate and independent solid circumferentially continuous shape retaining ring 20 which reinforces the container and which is a metal ring manufactured by means of metal cutting is inserted on the butt joint between the end faces so that in the region of flanges 14 C, the upper and lower beaded end faces 14 A and 14 B of the neighboring container walls are supported across the entire surface by the associated shape retaining surfaces 20 A, 20 B on the end faces of shape retaining ring 20 .
- shape retaining ring 20 here shown is designed so as to curve into the opposite direction, thus ensuring that minor variations in the dimensions potentially present in bent region 10 G do not have a negative impact.
- the inside diameter of shape retaining ring 20 is selected to ensure that it conforms to the inside diameter of the container.
- shape retaining ring 20 On its radial outer surface, shape retaining ring 20 has upper and lower seal mounts 20 C for mounting a symmetrically designed circumferential sealing ring 16 , with sealing ring 16 comprising upper and lower sealing ridges 16 A and 16 B as well as a connecting bridge 16 C ( FIG. 2B ).
- Sealing ring 16 is dimensioned so that it is positioned close to and seals the two end faces 14 A and 14 B of flanges 14 C, on the one hand, and supports itself in seal mounts 20 C of shape retaining ring 20 and (radially on the outside) against each of the reinforcement bridges 14 E.
- the shape retaining ring 20 and end faces 14 A and 14 B of the neighboring container elements, which end faces are adjacent to the shape retaining surfaces of the shape retaining ring, are preferably in direct contact and tightly braced against each other. This is preferably achieved by using a bracing ring 18 .
- a bracing ring 18 is generally described herein, the various sealing embodiments can employ any similar type of bracing component.
- bracing surfaces 18 A are positioned flat on the oppositely facing flange surfaces of neighboring container elements. Thus, they are designed with the same slope as flanges 14 C and shape retaining surfaces 20 A and 20 B, i.e., they have a slightly conically truncated shape.
- Radially outwardly, bracing ring 18 and reinforcement bridge 14 E form a space gap so as to allow the bracing forces to take effect in a conventional manner.
- shape retaining ring 20 exerts functions that reinforce the container elements, without the necessity to reinforce the end faces of the container elements as such by means of multiple forming, which is necessary in conventional containers.
- the container is both radially and axially extremely well reinforced and, in addition, protected against torsion, and the manufacture and assembly of the wall and bottom elements is very simple and efficient.
- the shape retaining ring 20 safeguards the radially externally and internally located circumferential seal which utilizes the bracing forces of the bracing ring to exclusively generate the sealing function but not to transmit retaining forces between the neighboring container elements. Because of the simply designed shape and the insertion of the shape retaining ring between the beaded areas, undesirable zones in which material contained in the container can be trapped are avoided in a simple fashion.
- FIGS. 3A through 5 The dovetailed, radially internal designs of the shape retaining rings according to FIGS. 3A through 5 make it possible to form fittingly mount internally located sealing rings 16 .
- These figures illustrate the shape retaining ring defining one or more recessed regions or undercuttings. Preferably, these undercuttings exhibit a dovetail profile.
- Reinforcements 24 A can be welded onto the shape retaining rings 20 ( FIGS. 3B and 4 ) or be made in one piece with the shape retaining rings 20 ( FIG. 4 ), so as to reinforce extensions that project radially into the container, such as funnel shaped lips of the sealing ring, i.e. forming funnel 24 .
- FIGS. 6A through 6C show three different embodiments of the beaded end faces of neighboring container or bottom elements 12 A, 12 B, with FIG. 6A providing a short one-sided collar configuration and FIG. 6C a long one-sided collar configuration and with FIG. 6B providing maze-like overlapping collars on both sides.
- a radially internally located sealing ring such as in FIG. 3 A—can be disposed close to bent region 10 G even in cases of inferior accuracy to size, which is an especially simple solution.
- FIG. 8 shows a shape retaining ring 20 with separate mounts or recessed regions on both ends for one sealing ring 16 each.
- FIGS. 9A through 9C show a shape retaining ring 20 with radii or rounded end regions on the end face(s) and with different slopes of the end faces of the shape retaining ring and the container end faces so as to be able to exert increased clamping forces. That is, the contacting surfaces of the shape retaining ring 20 wall elements 12 A, 12 B, are not parallel with each other. In addition, the clamping surfaces, or rather contacting surfaces, of the bracing rings 18 in FIG. 9A are located radially far inside, in FIG. 9B are distributed over a large region, and in FIG. 9C are located radially far outside.
- FIG. 10 shows a bracing ring 18 with clamping surfaces radially located far outside.
- FIGS. 11A and 11B show a shape retaining ring 20 with a conforming end face profile similar to FIGS. 7A and 7B , but for the attachment of one single outwardly located sealing ring 16 .
- the bracing ring 18 contacts a portion of the wall elements 12 A, 12 B along bracing surface 18 A.
- a container reinforcing shape retaining ring 20 ′, 20 ′′ according to the present invention can be axially divided into two parts along the midline so as to make it possible to mount a movable component, such as the throttle valve 26 , which can serve, e.g., as a discharge valve for a conveyer.
- a movable component such as the throttle valve 26
- appropriately large recesses for mounting the bearing in the shape retaining ring are disposed in the region of the pivot bearing 26 A.
- the large recesses accommodate a valve edge seal 26 B.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Packages (AREA)
- Storage Of Harvested Produce (AREA)
- Stackable Containers (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Cartons (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Lift Valve (AREA)
Abstract
A multilevel container is disclosed which comprises circumferentially continuous wall or bottom elements of sheet metal with radially outwardly beaded end faces. The wall and bottom elements are placed on top of each other on butt joints so as to seal the end faces and are detachably braced with a minimum of one neighboring container level. The multilevel container also comprises one or more sealing rings and bracing components that act on neighboring end faces. In order to provide a readily manufacturable and form a stable multilevel container without multiple beads in alternating directions or weldings in the butt joint portions, a separate and independent shape retaining ring is provided. This ring reinforces the container and has shape retaining surfaces on its two end faces. In the region of their end faces, the neighboring wall and bottom elements are set on and tightly braced against the shape retaining surfaces of the reinforcing shape retaining ring. Radially inside or radially outside the reinforcing shape retaining ring, a separate sealing ring is inserted between the radially outwardly beaded sheet metal end faces of the neighboring bottom or wall elements of the multilevel container or between these end faces and the reinforcing shape retaining ring.
Description
- The subject matter of the present invention relates to a multilevel sheet metal container with outwardly beaded end faces. The container utilizes a unique sealing configuration and sealing ring between container levels or regions.
- To meet the requirements of different container sizes or the requirements of containers with changeable bottom or wall elements, it is customary in the case of multilevel containers to ensure the stability of the container in the butt joint region by means of an appropriately robustly designed bracing ring (German Patent DE U1 88 10 118). Between the bracing ring and the outwardly beaded end faces of the container wall or bottom elements, elastic sealing rings are inserted into the butt joints. An elastic sealing ring or one of the lips of a multisegmented elastic sealing ring is inserted in the area between the facing end faces of the outwardly beaded sheet metal of which the bottom and wall elements are made. While the bracing ring and the radially outwardly beaded end faces can be in direct contact with each other, the sealing ring between the radially outwardly beaded end faces facing each other, however, cannot be omitted.
- To increase the stability along the butt joint, a supporting ring which is located on the inside and which partially straddles the two neighboring container walls can be used (German Patent DE A1 40 09 659).
- Multilevel containers made of sheet metal are known in which the butt joints are reinforced with massive flanges. These flanges are welded to the circumference of the container wall. Compared to these known containers, the generic multilevel containers with beaded end faces have the advantage that they can be produced much less expensively.
- To provide the butt joints of this design with sufficient stability, however, the conventionally known beaded areas are reinforced in a bridge-like manner by means of multiple beads in alternating directions. Among other things, these reinforcements have the disadvantage that they form grooves in which the material stored in the container can be trapped. For reasons of hygiene, this is undesirable, especially in food and pharmaceutical applications.
- Based on these considerations, the problem to be solved by the present invention is to provide a generic multilevel container so as to be robust, but without flanges that need to be welded onto the butt joints, so that no beading folds or grooves can form in which the material stored in the container can be trapped or accumulated.
- To solve this problem, a multilevel container having certain features is provided. Specifically, the present invention provides a separate and independent shape retaining ring which reinforces the container. The shape retaining ring has on both of its end faces, shape-retaining surfaces with which the neighboring wall and bottom elements that are made of container sheet metal are reinforced directly in the area of their radially outwardly beaded end faces. One or a plurality of additionally disposed sealing ring(s) is (are) separately braced radially inside or radially outside of the reinforcing shape-retaining ring between the outwardly beaded end faces (made of sheet metal) of the neighboring bottom or wall elements of the multilevel container or (individually) between these end faces and the reinforcing shape-retaining ring.
- The present invention provides a readily producible and simply constructed multilevel container in which the neighboring bottom and wall elements are connected to each other by means of a direct, in particular metal, contact. While ensuring high stiffness, the invention also provides for a lightweight construction and modular design. In the container surface area which comes into contact with the product contained therein, in particular along the butt joints, dead spaces can be eliminated or avoided. This ensures that relatively high and in many instances, the highest, hygiene requirements are met. In addition, this configuration promotes easy cleaning of the container and its interior surfaces. Furthermore, the present invention avoids the broader problems arising with the known multilevel, i.e., modularly designed, containers, such as electrostatic charges and shear deformation of seals during operation under a vacuum, as well as shape-retaining problems caused by an uneven distribution of the load on the collets and centering problems. Since in the stacking joint design according to the present invention the end faces of the neighboring container wall and bottom elements are made of the same sheet metal, of which the container jacket and container bottom are made, i.e., of sheet metal with a wall thickness of less than about 10 mm, and especially less than 4 mm, it is easy and efficient to manufacture the modules. Due to the use of a separate and independent shape-retaining ring with shape-retaining surfaces on the end faces which reinforces the container, the unavoidably present tolerances during sheet metal forming (beading) are not critical, and a precise stacking height can be maintained. This stacking height does not alter even when excess and reduced pressure is applied. Accordingly, the container is stable in height and length.
- The separate and independent shape-retaining ring provides shape-retaining end faces which reinforce the container. The shape retaining ring exerts its supporting function especially along the radially outwardly beaded flanges on the end faces of the preferably circumferentially continuous bottom or wall elements of the multilevel container. The shape retaining ring can be manufactured by either metal cutting from solid or tubular material or by any molding or casting technique or die-casting technique with or without a mechanical aftertreatment. Materials to be considered, in addition to metal and metal alloys, are synthetics with or without reinforcements. On the shape-retaining ring which reinforces the container, especially radially along the inside, it is possible to attach built-in components, such as funnels, filter plates, closing or separating elements and many others.
- In the region running radially on the outside, the radially outwardly beaded flange region on the end faces of neighboring bottom or wall elements can be fitted with collar-like reinforcement bridges which surround the wall or bottom element and which are also formed by beading the sheet metal of the container.
- With respect to size, shape, material selection and technical design, the previously mentioned components to be used according to the present invention are described in the practical examples below. These aspects are not subject to any particular conditions so that the selection criteria conventionally used in the field in which components are applied can be used without restriction.
- Additional details, features and advantages of the subject matter of the present invention follow from the claims and from the description below of the associated drawings which, by way of an example, show preferred practical examples of the multilevel container of sheet metal that is outwardly beaded on the end face in accordance with the present invention.
- In the drawings,
FIG. 1A shows a first embodiment of a multilevel container comprising one upper bottom element and four wall elements in a schematic axial section view; -
FIG. 1B shows a second embodiment of a multilevel container comprising one upper bottom element and two wall elements in an axial section view; -
FIGS. 2A through 2D show a vertical section of portions of a butt joint of neighboring container elements with radially outwardly located profile sealing rings, withFIG. 2A showing a basic embodiment of the reinforcing shape retaining ring,FIG. 2B showing the shape retaining ring with a welded on filter plate,FIG. 2C showing the shape retaining ring with an inserted funnel (welding joint not shown), andFIG. 2D showing the shape retaining ring with the filter plate inserted but not welded on; -
FIGS. 3A and 3B show a different embodiment of the shape retaining ring with a dovetail configuration for mounting a profile sealing ring that is located inside, withFIG. 3A showing a basic form andFIG. 3B showing an embodiment with a reinforcing element for a funnel mount that is formed by the sealing ring; -
FIG. 4 shows a modification of the shape retaining ring according toFIGS. 3A and 3B , with a collar for supporting a profile seal designed in a funnel like shape; -
FIG. 5 shows another alternative of a shape retaining ring with a dovetail design in an embodiment in which the diameter is reinforced; -
FIGS. 6A through 6C show three different embodiments of the beaded end faces of neighboring container or bottom elements, withFIG. 6A providing a short andFIG. 6C a long one sided collar and withFIG. 6B providing maze like overlapping collars on both sides; -
FIGS. 7A and 7B show a shape retaining ring with contour surfaces which, up to the bent regions, conform to the metal beading, withFIG. 7A showing container/bottom elements with collars on both ends andFIG. 7B showing said elements without collars; -
FIG. 8 shows a shape retaining ring with separate mounts on both ends for one sealing ring each; -
FIGS. 9A through 9C show a shape retaining ring with radii on the end face and with different slopes of the end faces of the shape retaining ring and the container end faces so as to be able to exert increased clamping forces, with the clamping surfaces of the bracing rings inFIG. 9A being radially located far inside, inFIG. 9B being distributed over a large radius, and inFIG. 9C being radially located far outside; -
FIG. 10 shows a bracing ring with clamping surfaces radially located far outside; -
FIGS. 11A and 11B show a shape retaining ring with a conforming end face profile (similar toFIGS. 7A and 7B ), but for the attachment of one single outwardly located sealing ring; -
FIGS. 12A through 12D show a two part shape retaining ring with a disk valve (discharge flap), withFIG. 12A showing a section through the disk valve along the axis of rotation,FIG. 12B showing an enlarged detail ofFIG. 12A ,FIG. 12C showing a section at right angles to the axis of rotation, andFIG. 12 D showing an enlarged detail ofFIG. 12C . - The five
level container 10 withcontainer levels 10A through 10E shown inFIG. 1A comprises four identical cylindrical, circumferentiallycontinuous wall elements 12A and a pot-likebottom element 12B on its upper end. Thelowermost wall element 12A serves merely as a supporting stand for mounting adischarge funnel 24″ which, on its tapered end, supports athrottle valve 26. Both thislower funnel 24″ as well asfunnel 24′ located higher up andfilter element 28 are supported on the radial inside surface of one shape retaining ring each. The funnels and the filter element can be continuously connected along the circumference to shape retainingring 20 as described below, e.g., by means of welding. The butt-joints ofcontainer levels 10A through 10E are designed as shown in greater detail inFIGS. 2A through 2D and will be described below on the basis ofFIG. 2A . - As
FIG. 1A also shows, it is possible to providecontainer level 10C which serves as a cyclone so as to cause a coarse separation of the conveying fluid and the material conveyed. Thecyclone element 24′ used for this purpose is circumferentially continuously connected, in particular welded, to ashape retaining ring 20 as is described below. If relatively long filter candles are used,level 10B can be designed so as to be higher thencontainer level 10C. Due to the height of the discharge unit, this also applies to a potentiallyhigher container level 10A. Thus, to radially reinforce the container levels, in particular 10B and 10A, these can be provided with circumferentiallycontinuous crimps 15 which are formed in one piece from the material ofwall element 12A. -
FIG. 1B shows another example of the diverse modular configuration of multilevel containers according to the present invention. - It can be seen from
FIG. 1B that filterplate 28A holds a filter generally identified byreference numeral 28 and that the filter plate is connected in a circumferentially sealing fashion to shape retainingring 20A, which will be described below, so thatabove filter plate 28A, asuction chamber 30A forms inbottom element 12B, which suction chamber is fluidically connected via asuction opening 30B andsuction line 30C tovacuum pump 30 and is fitted with conventional seals. Because of the permeability offilter 28 to fluids, a vacuum is generated in theintermediate storage space 30D located underneathfilter 28 whenvacuum pump 30 operates andthrottle valve 26 ofdischarge funnel 24″ is closed. The vacuum can be extended by conventional means viaoutlet opening 25A provided inwall element 12A and an associated, preferably tangentially disposedintake stub 25 into a storage space (not shown) for material to be conveyed. This type of basic configuration of an intermittently operating vacuum conveying device is actually known. The circumferential butt joints of the jacket surface of the neighboringcontainer levels FIG. 2 ). - As an alternative,
vacuum pump 30 can be disposed in a conventional manner directly on the upperbottom element 12B.Filter element 28 can be so called filter candles which can be attached to and suspended in a conventional manner fromfilter plate 28. - As can be seen from
FIGS. 2A through 2C ,wall elements 12A andbottom element 12B are made in one piece from sheet metal with a wall thickness of approximately 1 to 4 mm by means of a conventional forming process, such as roll forming, in the course of which beaded end faces 14 are manufactured which have lower (14A) and upper (14B) end faces as contact surfaces. On the end faces of the container levels, starting fromcircumferential container wall 10F, there is abent region 10G which is followed by a beaded end face 14 in the form of aflange 14C in the shape of a slightly tapering truncated cone. This flange can end radially outwardly in a truncated fashion as, e.g., shown inFIGS. 7B and 11A and 11B, or be extended so as to form anotherbent region 14D which, relative tobent region 10G, turns in the opposite direction and which is followed by areinforcement bridge 14E that runs approximately parallel to the container. In the practical example shown inFIG. 2A , thesereinforcement bridges 14E are oriented toward one another, leaving a space gap in between. - A separate and independent solid circumferentially continuous
shape retaining ring 20 which reinforces the container and which is a metal ring manufactured by means of metal cutting is inserted on the butt joint between the end faces so that in the region offlanges 14C, the upper and lower beaded end faces 14A and 14B of the neighboring container walls are supported across the entire surface by the associatedshape retaining surfaces shape retaining ring 20. Inbent region 10G,shape retaining ring 20 here shown is designed so as to curve into the opposite direction, thus ensuring that minor variations in the dimensions potentially present inbent region 10G do not have a negative impact. The inside diameter ofshape retaining ring 20 is selected to ensure that it conforms to the inside diameter of the container. On its radial outer surface,shape retaining ring 20 has upper and lower seal mounts 20C for mounting a symmetrically designedcircumferential sealing ring 16, with sealingring 16 comprising upper andlower sealing ridges bridge 16C (FIG. 2B ). Sealingring 16 is dimensioned so that it is positioned close to and seals the two end faces 14A and 14B offlanges 14C, on the one hand, and supports itself in seal mounts 20C ofshape retaining ring 20 and (radially on the outside) against each of the reinforcement bridges 14E. - The
shape retaining ring 20 and end faces 14A and 14B of the neighboring container elements, which end faces are adjacent to the shape retaining surfaces of the shape retaining ring, are preferably in direct contact and tightly braced against each other. This is preferably achieved by using a bracingring 18. Although a bracingring 18 is generally described herein, the various sealing embodiments can employ any similar type of bracing component. In the practical examples shown inFIGS. 2A through 2C , bracingsurfaces 18A are positioned flat on the oppositely facing flange surfaces of neighboring container elements. Thus, they are designed with the same slope asflanges 14C andshape retaining surfaces ring 18 andreinforcement bridge 14E form a space gap so as to allow the bracing forces to take effect in a conventional manner. - Thus,
shape retaining ring 20, with itsshape retaining surfaces shape retaining ring 20 safeguards the radially externally and internally located circumferential seal which utilizes the bracing forces of the bracing ring to exclusively generate the sealing function but not to transmit retaining forces between the neighboring container elements. Because of the simply designed shape and the insertion of the shape retaining ring between the beaded areas, undesirable zones in which material contained in the container can be trapped are avoided in a simple fashion. - Unless already otherwise stated in the brief description of the figures, practical examples 3A through 11B below differ from the practical example shown in
FIGS. 2A through 2C as follows. - The dovetailed, radially internal designs of the shape retaining rings according to
FIGS. 3A through 5 make it possible to form fittingly mount internally located sealing rings 16. These figures illustrate the shape retaining ring defining one or more recessed regions or undercuttings. Preferably, these undercuttings exhibit a dovetail profile.Reinforcements 24A can be welded onto the shape retaining rings 20 (FIGS. 3B and 4 ) or be made in one piece with the shape retaining rings 20 (FIG. 4 ), so as to reinforce extensions that project radially into the container, such as funnel shaped lips of the sealing ring, i.e. formingfunnel 24. -
FIGS. 6A through 6C show three different embodiments of the beaded end faces of neighboring container orbottom elements FIG. 6A providing a short one-sided collar configuration andFIG. 6C a long one-sided collar configuration and withFIG. 6B providing maze-like overlapping collars on both sides. - The deposition of contaminants in the seal or joint region is consistently avoided especially since the shape retaining ring has a profile that also conforms to the beading curvature, as seen in
FIGS. 7A and 7B . Alternatively, a radially internally located sealing ring such as in FIG. 3A—can be disposed close tobent region 10G even in cases of inferior accuracy to size, which is an especially simple solution. -
FIG. 8 shows ashape retaining ring 20 with separate mounts or recessed regions on both ends for onesealing ring 16 each. -
FIGS. 9A through 9C show ashape retaining ring 20 with radii or rounded end regions on the end face(s) and with different slopes of the end faces of the shape retaining ring and the container end faces so as to be able to exert increased clamping forces. That is, the contacting surfaces of theshape retaining ring 20wall elements FIG. 9A are located radially far inside, inFIG. 9B are distributed over a large region, and inFIG. 9C are located radially far outside. -
FIG. 10 shows a bracingring 18 with clamping surfaces radially located far outside. -
FIGS. 11A and 11B show ashape retaining ring 20 with a conforming end face profile similar toFIGS. 7A and 7B , but for the attachment of one single outwardly located sealingring 16. The bracingring 18 contacts a portion of thewall elements surface 18A. - According to
FIGS. 12A through 12D , a container reinforcingshape retaining ring 20′,20″ according to the present invention can be axially divided into two parts along the midline so as to make it possible to mount a movable component, such as thethrottle valve 26, which can serve, e.g., as a discharge valve for a conveyer. In this case, appropriately large recesses for mounting the bearing in the shape retaining ring are disposed in the region of the pivot bearing 26A. The large recesses accommodate avalve edge seal 26B. -
-
- 10 Multilevel container
- 10A Container level
- 10B Container level
- 10C Container level
- 10D Container level
- 10E Container level
- 10F Wall of container
- 10G Bent region
- 12A Wall element
- 12B Bottom element
- 14 Beaded end face
- 14A End face
- 14B End face
- 14C Flange
- 14D Bent region
- 14E Reinforcement bridge
- 15 Crimp
- 16 Sealing ring
- 16A Sealing ridge
- 16B Sealing ridge
- 16C Connecting bridge
- 18 Bracing ring
- 18A Bracing surface
- 20 Shape retaining ring
- 20′ Shape retaining ring
- 20″ Shape retaining ring
- 20A Shape retaining surface
- 20B Shape retaining surface
- 20C Seal mount
- 22 Bottom
- 24 Funnel
- 24′ Cyclone element
- 24″ Discharge funnel
- 24A Funnel reinforcement
- 25 Intake stub
- 25A Outlet opening
- 26 Throttle valve
- 26A Pivot bearing
- 26B Valve edge seal
- 28 Filter element
- 28A Filter plate
- 30 Vacuum pump
- 30A Suction chamber
- 30B Suction opening
- 30C Suction line
- 30D Intermediate storage chamber
- The foregoing description is, at present, considered to be the preferred embodiments of the present invention. However, it is contemplated that various changes and modifications apparent to those skilled in the art, may be made without departing from the present invention. Therefore, the foregoing description is intended to cover all such changes and modifications encompassed within the spirit and scope of the present invention, including all equivalent aspects.
Claims (20)
1. A multilevel container comprising circumferentially continuous wall or bottom elements of sheet metal with radially outwardly beaded end faces being directed towards each other, which wall and bottom elements are disposed on top of each other on butt joints so as to seal the end faces, the multilevel container also comprising a sealing ring and a bracing component that act on neighboring end faces, and a separate and independent shape retaining ring which reinforces the container, wherein the shape retaining ring has shape retaining surfaces, the shape retaining ring being disposed between said radially outwardly beaded end faces of the neighboring wall and bottom elements, said outwardly beaded end faces of said elements being abutted directly on and tightly braced against the shape retaining surfaces of the shape retaining ring from opposite sides thereof, and that radially inside or radially outside the shape retaining ring, the sealing ring being disposed between the radially outwardly beaded end faces of the neighboring bottom or wall elements or between these end faces and the shape retaining ring.
2. The multilevel container as claimed in claim 1 , wherein the shape retaining ring has at least one recessed region for a seal mount.
3. The multilevel container as claimed in claim 2 , wherein the seal mount defines at least one undercutting.
4. The multilevel container as claimed in claim 3 , wherein the undercuttings define a dovetail profile.
5. The multilevel container as claimed in claim 1 , wherein the shape retaining ring includes container components selected from the group consisting of funnel elements, bottoms, filter elements, throttle elements, closing elements, reinforcement elements, and combinations thereof.
6. The multilevel container as claimed in claim 1 , wherein the shape-retaining ring is divided into two parts.
7. The multilevel container of claim 6 , wherein the divided shape-retaining ring is adapted for mounting a component within the ring.
8. The multilevel container as claimed in claim 6 , wherein the divided shape retaining ring defines at least one recess for receiving a built in component.
9. The multilevel container as claimed in claim 8 wherein the built in component is a pivot bearing.
10. A multilevel container comprising circumferentially continuous wall or bottom elements of sheet metal with radially outwardly beaded end faces being directed towards each other, which wall and bottom elements are disposed on top of each other on butt joints so as to seal the end faces, the multilevel container also comprising a sealing ring and a bracing component that act on neighboring end faces, and a separate and independent shape retaining ring which reinforces the container, wherein the shape retaining ring has shape retaining surfaces, the shape retaining ring being disposed between said radially outwardly beaded end faces of the neighboring wall and bottom elements, the elements being disposed on and tightly braced against the shape retaining surfaces of the shape retaining ring from opposite sides thereof, and that radially inside or radially outside the shape retaining ring, the sealing ring being disposed between the radially outwardly beaded end faces of the neighboring bottom or wall elements or between these end faces and the shape retaining ring wherein a minimum of one wall or bottom element has a radially externally disposed reinforcement bridge which extends approximately parallel to the wall of the container and which is disposed in one piece with the beaded end face on the radial outside of said beaded end face.
11. A multilevel container comprising:
a first cylindrical section defining a first end and a second end, and a circumferential wall extending between the first and the second end of the first section, the first end defining a radially outwardly extending first beaded end face;
a second cylindrical section defining a first end and a second end, and a circumferential wall at least partially extending between the first and the second end of the second section, the second end defining a radially outwardly extending second beaded end face the first and second end faces being directed towards each other;
a shape retaining ring directly abutted between the first beaded end face and the second beaded end face, the ring defining an upper sloped face, an oppositely lower sloped face, an inner face extending between the upper and lower sloped faces, and an outer face opposite the inner face and extending between the upper and lower sloped faces;
a sealing ring disposed along the outer face of the shape retaining ring and between the first beaded end face and the second beaded end face;
wherein the inner face of the shape retaining ring is adapted such that accumulation of material in the container in the region of the ring is reduced.
12. The multilevel container of claim 11 further comprising:
a bracing ring disposed around the first section and the second section and contacting the first beaded end face and the second beaded end face.
13. A multilevel container comprising:
a first cylindrical section defining a first end and a second end, and a circumferential wall extending between the first and the second end of the first section, the first end defining a radially outwardly extending first beaded end face;
a second cylindrical section defining a first end and a second end, and a circumferential wall at least partially extending between the first and the second end of the second section, the second end defining a radially outwardly extending second beaded end face;
a shape retaining ring disposed between the first beaded end face and the second beaded end face, the ring defining an upper sloped face, an oppositely lower sloped face, an inner face extending between the upper and lower sloped faces, and an outer face opposite the inner face and extending between the upper and lower sloped faces;
a sealing ring disposed along the outer face of the shape retaining ring and between the first beaded end face and the second beaded end face;
wherein the inner face of the shape retaining ring is adapted such that accumulation of material in the container in the region of the ring is reduced and the shape retaining ring defines at least one indentation configured to receive and contact a region of the sealing ring.
14. The multilevel container of claim 11 further comprising:
a second sealing ring disposed along the outer face of the shape retaining ring and between the first beaded end face and the second beaded end face.
15. A multilevel container comprising:
a first cylindrical section defining a first end and a second end, and a circumferential wall extending between the first and the second end of the first section, the first end defining a radially outwardly extending first beaded end face;
a second cylindrical section defining a first end and a second end, and a circumferential wall at least partially extending between the first and the second end of the second section, the second end defining a radially outwardly extending second beaded end face;
a shape retaining ring disposed between the first beaded end face and the second beaded end face, the ring defining an upper sloped face, an oppositely lower sloped face, an inner face extending between the upper and lower sloped faces, and an outer face opposite the inner face and extending between the upper and lower sloped faces;
a sealing ring disposed along the outer face of the shape retaining ring and between the first beaded end face and the second beaded end face;
wherein the inner face of the shape retaining ring is adapted such that accumulation of material in the container in the region of the ring is reduced and the shape retaining ring includes an extension extending radially inward of at least one of the first and second cylindrical sections, the extension extending from the inner face of the shape retaining ring.
16. A multilevel container comprising:
a first cylindrical section defining a first end and a second end, and a circumferential wall extending between the first and the second end of the first section, the first end defining a radially outwardly extending first beaded end face;
a second cylindrical section defining a first end and a second end, and a circumferential wall at least partially extending between the first and the second end of the second section, the second end defining a radially outwardly extending second beaded end face;
a shape retaining ring disposed between the first beaded end face and the second beaded end face, the ring defining an upper sloped face, an oppositely lower sloped face, an inner face extending between the upper and lower sloped faces, and an outer face opposite the inner face and extending between the upper and lower sloped faces;
a sealing ring disposed along the outer face of the shape retaining ring and between the first beaded end face and the second beaded end face;
wherein the inner face of the shape retaining ring is adapted such that accumulation of material in the container in the region of the ring is reduced and the shape retaining ring defines an undercut recess and the sealing ring includes a member extending radially inward and received by the undercut recess.
17. A multilevel container comprising:
a first cylindrical section defining a first end and a second end, and a circumferential wall extending between the first and the second end of the first section, the first end defining a radially outwardly extending first beaded end face;
a second cylindrical section defining a first end and a second end, and a circumferential wall at least partially extending between the first and the second end of the second section, the second end defining a radially outwardly extending second beaded end face;
a shape retaining ring disposed between the first beaded end face and the second beaded end face, the ring defining an upper sloped face, an oppositely lower sloped face, an inner face extending between the upper and lower sloped faces, and an outer face opposite the inner face and extending between the upper and lower sloped faces;
a sealing ring disposed along the outer face of the shape retaining ring and between the first beaded end face and the second beaded end face;
wherein the inner face of the shape retaining ring is adapted such that accumulation of material in the container in the region of the ring is reduced and the upper sloped face of the shape retaining ring and the first beaded end face are parallel with each other.
18. A multilevel container comprising:
a first cylindrical section defining a first end and a second end, and a circumferential wall extending between the first and the second end of the first section, the first end defining a radially outwardly extending first beaded end face;
a second cylindrical section defining a first end and a second end, and a circumferential wall at least partially extending between the first and the second end of the second section, the second end defining a radially outwardly extending second beaded end face;
a shape retaining ring disposed between the first beaded end face and the second beaded end face, the ring defining an upper sloped face, an oppositely lower sloped face, an inner face extending between the upper and lower sloped faces, and an outer face opposite the inner face and extending between the upper and lower sloped faces;
a sealing ring disposed along the outer face of the shape retaining ring and between the first beaded end face and the second beaded end face;
wherein the inner face of the shape retaining ring is adapted such that accumulation of material in the container in the region of the ring is reduced and the inner face of the shape retaining ring is substantially flush with an inner face of the circumferential wall of the first section and an inner face of the circumferential wall of the second section.
19. The multilevel container of claim 11 wherein a portion of the first beaded end face overlaps a portion of the second beaded end face.
20. The multilevel container of claim 11 wherein a gap is defined between a distal end of the first beaded end face and a distal end of the second beaded end face.
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US14/158,522 US8967422B2 (en) | 2003-05-14 | 2014-01-17 | Multilevel sheet metal container with outwardly beaded end faces |
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DE20307555U DE20307555U1 (en) | 2003-05-14 | 2003-05-14 | Multi-day container made of sheet metal flanged to the outside |
US10/844,827 US20040238536A1 (en) | 2003-05-14 | 2004-05-13 | Multilevel sheet metal container with outwardly beaded end faces |
US12/148,429 US20080197130A1 (en) | 2003-05-14 | 2008-04-18 | Multilevel sheet metal container with outwardly beaded end faces |
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US14/158,522 Expired - Lifetime US8967422B2 (en) | 2003-05-14 | 2014-01-17 | Multilevel sheet metal container with outwardly beaded end faces |
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2003
- 2003-05-14 DE DE20307555U patent/DE20307555U1/en not_active Expired - Lifetime
-
2004
- 2004-04-30 AT AT04010249T patent/ATE356053T1/en not_active IP Right Cessation
- 2004-04-30 DE DE502004003099T patent/DE502004003099D1/en not_active Expired - Lifetime
- 2004-04-30 EP EP04010249A patent/EP1477427B1/en not_active Expired - Lifetime
- 2004-05-12 JP JP2004141894A patent/JP4276976B2/en not_active Expired - Lifetime
- 2004-05-13 US US10/844,827 patent/US20040238536A1/en not_active Abandoned
- 2004-05-14 CN CNB2004100432497A patent/CN1302965C/en not_active Expired - Lifetime
-
2008
- 2008-04-18 US US12/148,429 patent/US20080197130A1/en not_active Abandoned
-
2014
- 2014-01-17 US US14/158,522 patent/US8967422B2/en not_active Expired - Lifetime
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060278633A1 (en) * | 2005-06-14 | 2006-12-14 | Gkn Aerospace Services Structures Corp. | Hydraulic pressurizing containment vessel and method of use thereof |
US7866499B2 (en) * | 2005-06-14 | 2011-01-11 | Gkn Aerospace Services Structures Corp. | Hydraulic pressurizing containment vessel and method of use thereof |
US20110163093A1 (en) * | 2005-06-14 | 2011-07-07 | Gkn Aerospace Services Structures Corp. | Hydraulic pressurizing containment vessel and method of use thereof |
US8225951B2 (en) | 2005-06-14 | 2012-07-24 | Gkn Aerospace Services Structures Corp. | Hydraulic pressurizing containment vessel and method of use thereof |
US8240494B1 (en) * | 2009-07-30 | 2012-08-14 | Brad Mohns | Bulk material container with adaptable base |
US8662797B2 (en) | 2009-12-14 | 2014-03-04 | Agierre S.A.S. Di Ruggero Vincenzo & C. | Apparatus and process for vacuum conveying of powder products or the like |
US8413472B2 (en) * | 2011-01-27 | 2013-04-09 | Tung-Lung Chiang | Combination safe deposit box |
US20120192769A1 (en) * | 2011-01-27 | 2012-08-02 | Tung-Lung Chiang | Combination safe deposit box |
US20130327776A1 (en) * | 2012-06-11 | 2013-12-12 | Global Fabrication, Inc. | Variable-diameter storage tank system |
US8720737B2 (en) * | 2012-06-11 | 2014-05-13 | Global Fabrication, Inc. | Variable-diameter storage tank system |
US9056706B2 (en) | 2012-06-11 | 2015-06-16 | Global Fabrication Inc. | Variable-diameter storage tank system |
US20160106507A1 (en) * | 2013-05-24 | 2016-04-21 | Selenium Medical | Packaging, preferably medical, and corresponding assembly of packagings |
US11401096B2 (en) * | 2013-05-24 | 2022-08-02 | Selenium Medical | Packaging, preferably medical, and corresponding assembly of packagings |
Also Published As
Publication number | Publication date |
---|---|
EP1477427A2 (en) | 2004-11-17 |
US20140131349A1 (en) | 2014-05-15 |
JP2004338809A (en) | 2004-12-02 |
US20040238536A1 (en) | 2004-12-02 |
EP1477427A3 (en) | 2005-07-27 |
ATE356053T1 (en) | 2007-03-15 |
CN1651316A (en) | 2005-08-10 |
EP1477427B1 (en) | 2007-03-07 |
US8967422B2 (en) | 2015-03-03 |
CN1302965C (en) | 2007-03-07 |
DE502004003099D1 (en) | 2007-04-19 |
JP4276976B2 (en) | 2009-06-10 |
DE20307555U1 (en) | 2004-10-21 |
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Legal Events
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Owner name: VOLKMANN GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VOLKMANN, THILO;REEL/FRAME:020961/0145 Effective date: 20040601 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |