US3685543A - Device for the spreading of concrete - Google Patents
Device for the spreading of concrete Download PDFInfo
- Publication number
- US3685543A US3685543A US3685543DA US3685543A US 3685543 A US3685543 A US 3685543A US 3685543D A US3685543D A US 3685543DA US 3685543 A US3685543 A US 3685543A
- Authority
- US
- United States
- Prior art keywords
- mast
- arm
- section
- sections
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0321—Travelling cranes
- B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6855—Vehicle
- Y10T137/6881—Automotive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/8807—Articulated or swinging flow conduit
Definitions
- the mast can be folded upon each other in a unique UNITED STATES PATENTS manner to enable convenient transportation thereof from place to place.
- the invention relates to a device for the spreading of concrete with a concrete feed conduit, which is directed with a tiltable spreading mast consisting of several parts connected with one another by means of links, of which the basic arm and the arm branch part connected thereon are connected through a 180 thrust-piston-pivot-drive.
- Devices of this type are utilized together with concrete pumps mounted on a vehicle, for example, a motor freight car or truck.
- Their advantage as compared with the ordinary bucket feed lies above all therein, that they make possible a continuous supply of concrete with great differences in height.
- the great lengths of the masts necessitated by such differences in height require a multiple division of the spreading mast for the transportation of the device and the direction of the conduction of the supply of concrete in the operation of the device.
- a basic arm is utilized, which is pivoted about a central pivot rotatable column or upright and on which is arranged through a horizontal pivot the arm part element. Outside of the basic arm and the arm part element as a rule, however, only a mast section is required.
- Such turning gears can not be carried out with one thrust piston assembly. There are rather necessary at least two thrust pistons assemblies which take effect on an intermediary member, which must be connected between the two mast sections.
- the technical expenditure for such a turning gear is relatively great. This technical expenditure must furthermore be taken into account solely on account of the folding up or collapsing of the mast sections. It cannot be made use of in the operation of the device.
- the control of the turning gear is difficult because both thrust pistons, each according to load, are differcntiatingly active.
- the invention furnishes a device which operates with a spreading mast, whose sections are folded on one another in a horizontal plane and which makes use of simple turning gears.
- the mast pivoted on the arm-part element is adjustable with the aid of an 180 thrust piston turning gear assembly and is foldable between the arm part-element and the basic arm.
- the invention attains in this manner, that the entire or all of the mast sections may be connected with piston and cylinder assemblies, which permit of being actuated each with a hydraulic thrust piston drive. Besides, it is possible thereby to make due with the pivotability of the drive couplings when the spreader mast is to be brought into a transporting position or shifted out of the same, so that drive and transporting couplings of the mast are identical.
- the mast section linked to the arm piece possesses a relatively great length, care must be taken, that the thrust piston turning gear assembly between the basic arm and arm part-element does not disturb the connection of the mast sections.
- this is achieved in that the mast section attached to the arm part element has two partial lengths, of which the connecting end on the arm piece is arranged in the same plane as the arm part element, while the other partial length is offset and directed past on the thrust piston turning-gear.
- the mast section may have the same, or if need be a greater length than the arm part element.
- the pipe deflection arranged mainly on the mast end may be disposed directly adjacent the folded up or collapsed mast sections.
- the mast with the aid of the different turning gears may be brought kinematically into positions in which the entire arrangement becomes statically unstable.
- end switches In order to prevent the danger of the tipping over of the mast or of the vehicle containing it, respectively, end switches must be installed, which limit the movements of the mast and exclude the dangerous ranges. Such end switches are found in the practice of building construction as subject to disturbance. They therefore do not reliably fulfill their object.
- the invention excludes as compared therewith, in kinematic manner the dangerous ranges of the movements of the mast.
- this is attained by having the arm pivoted to one arm of a. two armed lever, whose other arm together with a part of the support forms for the basic arm and a pull or draw-rod a guide parallelogram, and that the arm and the part element are foldable from above on the side of the basic arm which lies opposite to the pull or draw rod.
- the invention is achieved by having the thrust pistonldrive serving for the pivoting of the basic arm pivoted to the column or support in the connecting link of the draw or pull rod and is pivoted on the basic arm between its two connecting links.
- the thrust piston drive serving for the pivoting of the arm is supported in the apex of a steering mechanism whose outer links lie in the center of rotation of the lever and in the arm.
- the part elements of the mast connected to the basic arm are turned in or retracted from above or'unfolded respectively.
- the parallel guidance is thereby limiting on the one hand the horizontal swing possibility of the basic arm to little more than one-fourth of a circular rotation in the vertical plane, and on the other hand, it guides the arm and mast or post part element connected to the same in such manner, that without actuation of the upper turning gear, this part of the mast covers similar arcuate paths.
- the dangerous pivotal positions of the mast are eliminated, and on the other hand, the mast upon varying spacing of the vehicle from the building may be swung to the wall of the building.There is thus a better utilization of the mast.
- the load of the thrust piston in the lower pivot drive of the mast becomes substantially less than previously.
- the directing of the mast is simplified because the pivot path covered in the part of the mast to be observed corresponds to the pivot paths which are covered in the upper end of the range of the mast and not seen.
- FIG. 1 shows in side view different positions which the sections of a spreader-mast may assume.
- FIG. 2 shows in side view the spreader mast in transporting condition showing some details which are omitted from FIG. 1.
- FIG. 3 shows a section along the line A-B of FIG. 2.
- FIG. 4 shows the device according to the invention in side view for illustration of its details
- FIG. 5 shows several of the possible pivot positions of the mast-in the illustration according to FIG. 4, and its individual sections.
- the sectional spreading mast 5 is mounted on a column 6, which is pivotal about a vertical pivot 7.
- the supports 8 make it possible to release the wheels 9 of the vehicle 1 and to give to the entire device a better emplacement-capability.
- the mast or post is pivoted to the column 6 and may be alined with respect to the column by means of a thrust piston 12.
- the lower partof the mast or post is formed by a basic arm 13, on which is laid the concrete-supply conduit 14.
- an arm 17 is pivoted to the basic arm 13 and the connection between the arm 17 and the basic arm 13 is produced by a 180 thrust-piston as sembly 20.
- the arrow 21 in FIG. 1 as well as the four fragments from left to right shown in FIG. 1 illustrate how the sectional spreading mast 5 is folded into its transporting position.
- the mast section 19 is folded between the arm element 17 and the basic arm 13. Besides, it is recognizable from FIG. 1, that the transporting links are identical with the operating links.
- a first partial length of the mast section 19 which extends into the vicinity of the 180 thrust piston assembly 18 and is indicated at 26 in FIG. 2.
- the mast section 19 is displaced, that is, it possesses a U-shaped partial length 28 (FIG. 3) for the displacement of the concrete-supply conduit 30 and for the reception of the pipe deflection member 24.
- the partial length 14 of the concrete feed conduit correlated with the basic arm 13 is arranged adjacent the mast section 19, while the partial length 31 of the concrete feed conduit correlated with the arm element 17 lies underthe post section.
- the partiallength 30 of the concrete feed conduit lies on the opposite side, however, likewise, adjacent to the U- shaped portion of the mast section 28.
- pipe sections 35 are utilized, in order to make the concrete feed conduit flexible.
- the outlet end of the concrete feed conduit is formed by a pipe or tube 36, for assisting in directing concrete feed conduit at the end of the mast.
- the motor truck carries on its base frame 102 a concrete pump 103 with a filler funnel 104, and offers at 105 the possibility of supporting .the several sections of the mast.
- extensible supports 106 are provided for enhancing the safety of position of the vehicle.
- a thrust piston drive assembly 113 is mounted at 114 on the lower side 115 of the base arm 110 and is connected at 111 to the ing of two links 121 and 122 is pivoted a thrust piston drive assembly 123, which is pivoted at 124 on the lower side 125 of the arm 119.
- the outer links of the drive consisting of the two links 121 and 122 lie on the one hand at 126 in the arm 119 and on the other hand at 115 in the flexible bearing of the basic arm 110 or of the lever 116, respectively.
- a thrust piston drive assembly 130 On the lower side 125 of the arm 119 is pivoted at 129 a thrust piston drive assembly 130.
- This thrust piston drive assembly is supported in the apex 131 of a drive consisting of two links 133 or 134, respectively, whose outer link is disposed at 135 in the arm 119 and at 126 in an arm 137 connected to the arm 1 19.
- the pipe support member 141 prevents a kinking of the pipe.
- the arm 119 is pivoted to the upper arm of the two armed lever 1 16, whose lower arm forms together with the part of the column 108 lying between the points 109 and 111, as well as the base arm 110 and the pull rod 112 a guide parallelogram.
- the arm 119 and the arm 137 are folded from above upon the side 150 of the base arm 110 lying opposite the pull rod 112, when the entire arrangement is in its transporting position.
- the individual mast arms are opened up. Then the mast may by way of example assume one of the positions illustrated in FIG.
- each deflection leads about the arc a or b, respectively to a deflection of the pipe support member 141 about the arc d, which is exactly as large as the are b or a.
- thrust-piston drive assembly 113 may be dimensioned substantially more weakly than with embodiments without parallel guidance, because the tilting moments are conducted mainly through the parts 1 10 and 112 into the column 108.
- the mast in its end position b swung farthest forward may assume the two positions illustrated to the left, outside in FIG. 5, when lower floors of the building are to be concreted.
- Apparatus for delivering concrete to remote locations comprising an articulated section mast having a basic arm, an intermediate arm section, and an outer mast section, conduit means for concrete carried by said mast means for forcibly feeding concrete through said conduit means, piston and cylinder assemblies arranged respectively at the joints of said mast sections and directly connected thereto with a cylinder connected to one arm section and its piston connected to another arm section for actuating the sections thereof through an arc of for enabling extension or retraction of selected mast sections, and pivotal connections between said mast sections respectively enabling said outer mast section to be folded between said basic arm and intermediate arm section, and with a substantial portion of the length of said outer arm section wholly offset laterally of the adjacent arm section.
- conduit means is in the form of a continuous flexible tube disposed, as viewed with the mast sections in extended position, with a length thereof along one side of said basic arm, a length thereof along the upper edge of said intermediate arm section, and another length thereof along an opposite side of said outer arm section, the tube arrangement being such that the arm sections can be folded together with the outer arm section disposed between said basic arm and said intermediate arm section.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Jib Cranes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691929401 DE1929401B2 (de) | 1969-06-10 | 1969-06-10 | Einrichtung zum verteilen von beton mit hilfe eines auf einem strassengaengigen fahrzeug dreh- und schwenkbar angeordneten auslegers |
DE2000382A DE2000382C3 (de) | 1970-01-07 | 1970-01-07 | Vorrichtung zum Verteilen von Beton mit einem zusammenklappbaren Ausleger, der eine Betonförderleitung trägt |
Publications (1)
Publication Number | Publication Date |
---|---|
US3685543A true US3685543A (en) | 1972-08-22 |
Family
ID=25757475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3685543D Expired - Lifetime US3685543A (en) | 1969-06-10 | 1970-06-09 | Device for the spreading of concrete |
Country Status (9)
Country | Link |
---|---|
US (1) | US3685543A (de) |
AT (1) | AT332101B (de) |
CA (1) | CA952790A (de) |
CS (1) | CS157102B2 (de) |
ES (1) | ES380563A1 (de) |
FR (1) | FR2051015A5 (de) |
GB (1) | GB1300269A (de) |
NL (1) | NL7008419A (de) |
PL (1) | PL80682B1 (de) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766938A (en) * | 1972-01-26 | 1973-10-23 | Exxon Research Engineering Co | Cargo transfer system for a floating storage vessel and offtaker moored in tandem |
US3789869A (en) * | 1972-01-24 | 1974-02-05 | Snorkel Fire Equipment Co | Fire-fighting apparatus and elongate cantilever boom assembly therefor |
US3884528A (en) * | 1973-03-08 | 1975-05-20 | Myers Sherman Co | Unloading apparatus |
US3964512A (en) * | 1973-09-10 | 1976-06-22 | Odilon Dumas | Self-supporting pipe boom |
US3976092A (en) * | 1974-07-06 | 1976-08-24 | Friedrich Wilhelm Schwing Gmbh | Apparatus for the distribution of concrete |
US4311396A (en) * | 1978-08-09 | 1982-01-19 | Compagnia Italiana Forme Acciaio S.P.A. | Truck mixer |
US4519768A (en) * | 1982-10-29 | 1985-05-28 | Takenaka Komuten Co., Ltd. | Apparatus for horizontally casting concrete |
US4625760A (en) * | 1984-03-15 | 1986-12-02 | Walter Scheele Gmbh & Co. Kg | Mobile concrete handling apparatus |
US4640533A (en) * | 1985-10-04 | 1987-02-03 | Construction Forms, Inc. | Adjustable pipe extender for high pressure lines carrying abrasive materials |
US4774979A (en) * | 1987-08-03 | 1988-10-04 | Castle Coal & Oil Co., Inc. | Pivotable overhead conduit assembly |
US4828033A (en) * | 1981-06-30 | 1989-05-09 | Dowell Schlumberger Incorporated | Apparatus and method for treatment of wells |
US5640996A (en) * | 1993-02-27 | 1997-06-24 | Putzmeister-Werk Maschinenfabrik Gmbh | Large manipulator, especially for self-propelled concrete pumps |
US6675822B1 (en) * | 1999-12-03 | 2004-01-13 | Putzmeister Ag | Concrete distributing boom for concrete pumps |
US20040076502A1 (en) * | 2001-01-15 | 2004-04-22 | Dirk Nissing | Large manipulator having a vibration damping capacity |
US6808025B2 (en) | 1999-09-10 | 2004-10-26 | Schwing America, Inc. | Fire-fighting system having improved flow |
AT502871B1 (de) * | 2005-11-17 | 2008-06-15 | Schwing Gmbh F | Hydraulikzylinder |
US7712481B1 (en) * | 2005-04-13 | 2010-05-11 | Vactor/Guzzler Manufacturing, Inc. | Suction hose arrangement for refuse tank trucks |
US20130315676A1 (en) * | 2012-05-25 | 2013-11-28 | T&T Engineering Services, Inc. | Service Line Transport and Deployment System |
US20140103698A1 (en) * | 2012-10-17 | 2014-04-17 | Bo Feng | Horizontally rotatable multi-knuckle boom |
US20140325976A1 (en) * | 2011-11-10 | 2014-11-06 | Schwing Gmbh | Boom construction for a truck-mounted concrete pump |
US10122127B2 (en) * | 2016-02-29 | 2018-11-06 | Masterbrand Cabinets, Inc. | Compact drawer outlet |
US20200199897A1 (en) * | 2017-05-12 | 2020-06-25 | Putzmeister Engineering Gmbh | Angled Boom Comprising Variable Cross-Section for Mobile Concrete Pumps |
US20200217093A1 (en) * | 2017-05-12 | 2020-07-09 | Putzmeister Engineering Gmbh | Distribution Boom for Mobile Concrete Pumps Comprising Joints for Adjacent Arms, and Mobile Concrete Pump |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2674500A (en) * | 1949-07-28 | 1954-04-06 | Hukari Ormand | Articulated support for platforms |
US2948306A (en) * | 1959-02-27 | 1960-08-09 | Standard Vacuum Oil Company | Aircraft refueling system |
US3126913A (en) * | 1964-03-31 | Figure | ||
US3221772A (en) * | 1963-03-11 | 1965-12-07 | Mississippi Valley Structural | Articulated conduit boom assembly |
US3399909A (en) * | 1966-02-17 | 1968-09-03 | Honeywell Inc | Transmitting apparatus |
US3409046A (en) * | 1964-11-30 | 1968-11-05 | Hooker Chemical Corp | Fluid transfer apparatus |
US3451427A (en) * | 1965-08-26 | 1969-06-24 | Mississippi Valley Structural | Articulated pipe boom structure |
US3459222A (en) * | 1966-09-16 | 1969-08-05 | Philip W Mcelroy | Concrete conveying apparatus |
-
1970
- 1970-06-04 AT AT502970A patent/AT332101B/de not_active IP Right Cessation
- 1970-06-08 PL PL1970141155A patent/PL80682B1/pl unknown
- 1970-06-09 ES ES380563A patent/ES380563A1/es not_active Expired
- 1970-06-09 US US3685543D patent/US3685543A/en not_active Expired - Lifetime
- 1970-06-09 CA CA084,978A patent/CA952790A/en not_active Expired
- 1970-06-09 GB GB2786970A patent/GB1300269A/en not_active Expired
- 1970-06-10 FR FR7021279A patent/FR2051015A5/fr not_active Expired
- 1970-06-10 CS CS407970A patent/CS157102B2/cs unknown
- 1970-06-10 NL NL7008419A patent/NL7008419A/xx unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126913A (en) * | 1964-03-31 | Figure | ||
US2674500A (en) * | 1949-07-28 | 1954-04-06 | Hukari Ormand | Articulated support for platforms |
US2948306A (en) * | 1959-02-27 | 1960-08-09 | Standard Vacuum Oil Company | Aircraft refueling system |
US3221772A (en) * | 1963-03-11 | 1965-12-07 | Mississippi Valley Structural | Articulated conduit boom assembly |
US3409046A (en) * | 1964-11-30 | 1968-11-05 | Hooker Chemical Corp | Fluid transfer apparatus |
US3451427A (en) * | 1965-08-26 | 1969-06-24 | Mississippi Valley Structural | Articulated pipe boom structure |
US3399909A (en) * | 1966-02-17 | 1968-09-03 | Honeywell Inc | Transmitting apparatus |
US3459222A (en) * | 1966-09-16 | 1969-08-05 | Philip W Mcelroy | Concrete conveying apparatus |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3789869A (en) * | 1972-01-24 | 1974-02-05 | Snorkel Fire Equipment Co | Fire-fighting apparatus and elongate cantilever boom assembly therefor |
US3766938A (en) * | 1972-01-26 | 1973-10-23 | Exxon Research Engineering Co | Cargo transfer system for a floating storage vessel and offtaker moored in tandem |
US3884528A (en) * | 1973-03-08 | 1975-05-20 | Myers Sherman Co | Unloading apparatus |
US3964512A (en) * | 1973-09-10 | 1976-06-22 | Odilon Dumas | Self-supporting pipe boom |
US3976092A (en) * | 1974-07-06 | 1976-08-24 | Friedrich Wilhelm Schwing Gmbh | Apparatus for the distribution of concrete |
US4311396A (en) * | 1978-08-09 | 1982-01-19 | Compagnia Italiana Forme Acciaio S.P.A. | Truck mixer |
US4828033A (en) * | 1981-06-30 | 1989-05-09 | Dowell Schlumberger Incorporated | Apparatus and method for treatment of wells |
US4519768A (en) * | 1982-10-29 | 1985-05-28 | Takenaka Komuten Co., Ltd. | Apparatus for horizontally casting concrete |
US4625760A (en) * | 1984-03-15 | 1986-12-02 | Walter Scheele Gmbh & Co. Kg | Mobile concrete handling apparatus |
US4640533A (en) * | 1985-10-04 | 1987-02-03 | Construction Forms, Inc. | Adjustable pipe extender for high pressure lines carrying abrasive materials |
US4774979A (en) * | 1987-08-03 | 1988-10-04 | Castle Coal & Oil Co., Inc. | Pivotable overhead conduit assembly |
US5640996A (en) * | 1993-02-27 | 1997-06-24 | Putzmeister-Werk Maschinenfabrik Gmbh | Large manipulator, especially for self-propelled concrete pumps |
US6808025B2 (en) | 1999-09-10 | 2004-10-26 | Schwing America, Inc. | Fire-fighting system having improved flow |
US6675822B1 (en) * | 1999-12-03 | 2004-01-13 | Putzmeister Ag | Concrete distributing boom for concrete pumps |
US20040076502A1 (en) * | 2001-01-15 | 2004-04-22 | Dirk Nissing | Large manipulator having a vibration damping capacity |
US7143682B2 (en) * | 2001-01-15 | 2006-12-05 | Schwing Gmbh | Large manipulator having a vibration damping capacity |
US7712481B1 (en) * | 2005-04-13 | 2010-05-11 | Vactor/Guzzler Manufacturing, Inc. | Suction hose arrangement for refuse tank trucks |
AT502871B1 (de) * | 2005-11-17 | 2008-06-15 | Schwing Gmbh F | Hydraulikzylinder |
US20090090687A1 (en) * | 2005-11-17 | 2009-04-09 | Schwing Gmbh | Hydraulic Cylinder |
US20140325976A1 (en) * | 2011-11-10 | 2014-11-06 | Schwing Gmbh | Boom construction for a truck-mounted concrete pump |
US9453351B2 (en) * | 2011-11-10 | 2016-09-27 | Schwing Gmbh | Boom construction for a truck-mounted concrete pump |
US20130315676A1 (en) * | 2012-05-25 | 2013-11-28 | T&T Engineering Services, Inc. | Service Line Transport and Deployment System |
US9360134B2 (en) * | 2012-05-25 | 2016-06-07 | T & T Engineering Services, Inc. | Service line transport and deployment system |
US20170023153A1 (en) * | 2012-05-25 | 2017-01-26 | T&T Engineering Services, Inc. | Service Line Transport and Deployment System |
US10612694B2 (en) * | 2012-05-25 | 2020-04-07 | Schlumberger Technology Corporation | Service line transport and deployment system |
US20140103698A1 (en) * | 2012-10-17 | 2014-04-17 | Bo Feng | Horizontally rotatable multi-knuckle boom |
US10122127B2 (en) * | 2016-02-29 | 2018-11-06 | Masterbrand Cabinets, Inc. | Compact drawer outlet |
US20200199897A1 (en) * | 2017-05-12 | 2020-06-25 | Putzmeister Engineering Gmbh | Angled Boom Comprising Variable Cross-Section for Mobile Concrete Pumps |
US20200217093A1 (en) * | 2017-05-12 | 2020-07-09 | Putzmeister Engineering Gmbh | Distribution Boom for Mobile Concrete Pumps Comprising Joints for Adjacent Arms, and Mobile Concrete Pump |
US11952788B2 (en) * | 2017-05-12 | 2024-04-09 | Putzmeister Engineering Gmbh | Angled boom comprising variable cross-section for mobile concrete pumps |
US12018498B2 (en) * | 2017-05-12 | 2024-06-25 | Putzmeister Engineering Gmbh | Distribution boom for mobile concrete pumps comprising joints for adjacent arms, and mobile concrete pump |
Also Published As
Publication number | Publication date |
---|---|
NL7008419A (de) | 1970-12-14 |
CS157102B2 (de) | 1974-08-23 |
ATA502970A (de) | 1975-12-15 |
CA952790A (en) | 1974-08-13 |
FR2051015A5 (de) | 1971-04-02 |
GB1300269A (en) | 1972-12-20 |
AT332101B (de) | 1976-09-10 |
PL80682B1 (de) | 1975-08-30 |
ES380563A1 (es) | 1973-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3685543A (en) | Device for the spreading of concrete | |
US4280771A (en) | Apparatus for distributing concrete, especially in the shuttering of gallery linings in mine and tunnel workings | |
US6390504B1 (en) | Mobile concrete pump | |
US4619369A (en) | Support or stabilizer devices for mobile construction equipment | |
US5899276A (en) | Bumper-mounted extensible turret | |
US6463958B1 (en) | Distributing device for thick substances, especially concrete | |
US2911111A (en) | Mobile hydraulic crane | |
US4453672A (en) | Vehicle mounted aerial lift | |
US2833422A (en) | Telescopic boom | |
US5522677A (en) | Travelling concreting device | |
US4118907A (en) | Lifting equipment having telescopic boom with automatic extension limiting | |
US3014575A (en) | Jointed conveyor | |
JP2001233185A (ja) | 可動作業機械を安定化する張り出し装置 | |
US4625760A (en) | Mobile concrete handling apparatus | |
US3024933A (en) | Multi-action front end loaders | |
US7258242B2 (en) | Mobile crane boom having an autarchic hydraulic power unit mounted thereon | |
US6250423B1 (en) | Mobile lifting platform | |
US3196979A (en) | Workman's cage or aerial basket | |
JPS5926600B2 (ja) | リフト | |
US2841960A (en) | Fluid pressure control system | |
US3604533A (en) | Combination telescopic and articulated aerial bucket device | |
US3817007A (en) | Aerial lift mechanism | |
US20040148814A1 (en) | Distributor device for thick matter | |
US3631939A (en) | Mobile aerial tower | |
US2259966A (en) | Fire extinguishing apparatus |