WO1996007590A1 - Pump assembly - Google Patents
Pump assembly Download PDFInfo
- Publication number
- WO1996007590A1 WO1996007590A1 PCT/NL1995/000299 NL9500299W WO9607590A1 WO 1996007590 A1 WO1996007590 A1 WO 1996007590A1 NL 9500299 W NL9500299 W NL 9500299W WO 9607590 A1 WO9607590 A1 WO 9607590A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- nozzle
- cap
- assembly according
- pump assembly
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/046—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
- B65B31/047—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper the nozzles co-operating with a check valve in the opening of the container or wrapper
Definitions
- the invention relates to a pump assembly comprising a pump member and a number of caps to be provided on a container, which comprise a valve member, which pump member is adapted to cooperate with a cap of a first type placed on a container so as to create, via the valve member, an underpressure in the container.
- Such a pump assembly intended to create an underpressure above a rest of wine in a wine bottle so as to enable keeping the wine longer without loss of quality, is known from practice.
- the known pump assembly comprises a suction pump and a number of vacuum caps capable of being provided in a neck of a bottle, via which vacuum caps the air in the bottle located above the wine can be pumped out by means of the pump.
- the known pump assembly does not have so-called pressure caps by means of which an overpressure could be created in a container. Also, the pump of the known pump assembly is not suitable for generating an overpressure in a container.
- Pump devices for generating an overpressure in containers containing, for instance, carbonated beverages are known as well. By generating an overpressure in a bottle containing a rest of a carbonated beverage, the beverage will preserve its refreshing characteristics for a longer time.
- the known pump devices for creating an overpressure are not suitable for generating an underpressure. Consequently, a drawback of the known pump assemblies is that two different assemblies are needed if it is desired to keep rests of wine as well as rests of carbonated beverages, such as soft drink.
- Another drawback is that the use of the known pump assemblies entails the risk that leakage occurs if a bottle on which a vacuum cap or pressure cap has indeed been provided, but wherein no underpressure or overpressure has been created, is kept horizontally.
- the object of the invention is to overcome the drawbacks outlined above and in general to provide a pump assembly having a pump member suitable both for creating underpressure and for the creating overpressure, which operates in a reliable manner and is universally applicable.
- a pump assembly of the subject type is characterized in that the pump member is also adapted to cooperate, via the same nozzle, with a cap of a second type placed on a container, in order to create an overpressure in the container.
- Fig. 1 schematically shows in longitudinal section an example of a pump member for a pump assembly according to the i en ion*
- FIG. 2 schematically shows in vertical section an example of a vacuum cap according to the invention
- FIG. 3 schematically shows in vertical section an example of a pressure cap according to the invention
- FIG. 4 schematically shows in vertical section a second example of a pressure cap according to the invention
- Fig. 5 schematically shows a detail of Fig. 2;
- Fig. 6 schematically shows a detail of Fig. 3;
- Fig. 7 schematically illustrates the application of a pump member according to the invention together with a vacuum cap
- Fig. 8 schematically illustrates the application of a pump member according to the invention together with a pressure cap.
- the pump member shown in Fig. l comprises a pump housing forming a cylinder 1, and a piston 2 which is movable forwards and backwards therein in the longitudinal direction and which has an operating member 3 extending outside the cylinder.
- the piston At its end remote from the operating member 3, the piston comprises a sealing member in the form of an O-ring 5 retained between two circumferential flanges 4, which O-ring 5 forms a seal between the inner wall of the cylinder and the piston.
- the O-ring 5 is preferably made of self-lubricating material, for instance rubber with 5% molykote.
- the cylinder 1 At its end remote from the operating member 3 of the piston, the cylinder 1 comprises a nozzle 6.
- the nozzle serves as end stop for the piston and in this example further comprises a chamber 7 into which an extension or nose 8 of the piston extends.
- the chamber 7 ends in a funnel-shaped part 9 capable of cooperating with a vacuum cap or a pressure cap.
- the chamber 7 further comprises an internal circumferential groove 10, which can for instance be V-shaped or C-shaped and wherein an O-ring or a similar sealing member 11 is provided. Via a number of chanels 12, the circumferential groove communicates with the space on the outside of the funnel-shaped part 9. Normally, and at any rate during a delivery stroke of the pump, the channels 12 are sealed by the O-ring sitting in the groove 10.
- the O-ring can optionally be mounted with some outwardly directed prestress.
- the O-ring can be drawn inwards slightly, so that the channels 12 are released and ambient air is capable of flowing toward the cylinder.
- the O-ring functions as a suction valve.
- the nozzle 6 further comprises a sleeve 13, extending at a distance around the funnel-shaped part 9.
- the channels 12 terminate inside the sleeve 13.
- the sleeve can sealingly cooperate with a vacuum cap, and accordingly functions as a pressure valve.
- the pump housing, the piston, the nozzle and the operating member can be manufactured from a suitable plastic, for instance ABS, for instance by means of an injection molding process.
- nozzle and the operating member can be connected with the pump housing and the piston respectively.
- the sleeve is manufactured from flexible material, as are of course the 0-rings.
- Fig. 2 schematically shows in cross-section a vacuum cap 20.
- the vacuum cap shown comprises a tubular part 21, having a shell 22 of flexible material.
- the tubular part with the shell can be provided in a bottle as a stopper or cork.
- the shell is in this example provided with circumferential ribs 23.
- the tubular part 21 connects to a wider part 24, which, in the operating condition, projects above the container and forms an open chamber 25.
- an approximately hourglass-shaped insert 26 mounted in the chamber 25 is an approximately hourglass-shaped insert 26, provided with a central opening 27 and otherwise sealing the chamber 25.
- the opening 27 serves to receive the funnel-shaped part of the nozzle of the pump in a non-sealing manner, and communicates, via a bore 28, with a chamber 29 formed between the insert and the bottom of the chamber 25.
- the chamber 29 communicates with the interior of the tubular part 21 and accordingly with the interior of a bottle to be treated, if the vacuum cap has been provided on a bottle.
- a mushroom- shaped valve 31 made of supple yet firm material.
- the valve shown comprises a shaft 32, a hat 33 and a conical enlarged portion 34 located under the hat. Further, the shaft continues above the hat by an extension 35.
- the hat is concave at its lower side, as is shown in Fig. 2.
- the extension 35 extends into the opening 27 of the insert 26 and does so to such an extent that the extension can be pushed back slightly by the nozzle of a pump member according to the invention, as soon as it is placed on the vacuum cap.
- Fig. 3 schematically shows in vertical section an example of a pressure cap 40 according to the invention.
- the pressure cap shown has, in section, the shape of an inverted U and is in this example provided with internal screw thread 41, so that the cap can be firmly screwed on a bottle and there is no risk of the cap popping from the bottle when the pressure above the liquid in the bottle is increased.
- the upper side of the pressure cap has a recessed part 42, capable of receiving the f nnel-shaped part of the pump member shown in Fig. 1.
- the recessed part 42 is U-shaped in section and has an opening 44 in its bottom 43, which opening forms a connection with the interior of the cap and accordingly with the interior of the bottle or the like on which the cap is fitted.
- a ha -shaped elastic valve member 45 is shown separately in top plan view and in section in Fig. 6.
- the valve member has an annular edge 46 which, in mounted condition, lies against the inside of the top wall of the cap around the recessed part. The edge serves as a sealing member relative to the upper edge of a bottle on which the pressure cap has been provided and further serves as a fastening member for the rest of the valve member.
- the valve member comprises a cylindrical part 47 lying around the recessed part of the cap and a bottom 48 lying against the end of the recessed part.
- the cylindrical part can be provided with internal vertical ribs to secure a proper centering.
- the bottom 48 forms a seal between the opening 44 and the interior of the cap.
- the bottom can comprise a projection having the shape of a segment of a sphere and lying against the opening or even partly extending into the opening, which projection, however, is not shown in Fig. 3.
- the openings 49 are capable of passing air if, by an increased pressure in the recess 42, the bottom 48 comes loose slightly from the bottom of the recess and thus releases the opening 44.
- a number of openings 50 have also been provided between the annular edge 46 and the cylindrical part of the valve member.
- the openings 50 promote a smooth action of the valve member, but may also be omitted in the case of a suitable choice of material.
- the central recess 42 in the pressure cap is so shaped that the edge of the sleeve 13 of the pump cannot fall around the pressure cap in a sealing manner.
- the shell of the pressure cap can be provided with vertical grooves or the like, so that the sleeve cannot sealingly cooperate with the pressure cap whatsoever.
- the pump draws in air.
- the air can flow into the pump cylinder via the space between the sleeve and the pressure cap and then via the air channels 12 along the O-ring 11 or the like.
- the O-ring is drawn inwards slightly by the underpressure generated, so that the air channels 12 are released.
- the funnel-shaped part 9 of the nozzle of the pump sealingly fits in the recessed part 42 of the pressure cap.
- the sealing member 11 is forced into the sealing position again, so that the air supplied from the cylinder can leave the pump via the spout 9 only.
- the overpressure generated in the cylinder and in the spout effects that the bottom 48 of the hat- shaped valve member 45 is pressed downwards, enabling air to flow into the bottle 61 via the opening 44 in the cap and the openings 49 of the valve member.
- the bottom 48 of the valve member seals the opening 44 again.
- the same pump can be used without the pump having to undergo any modifications. It is exclusively the cap used that determines whether the pump will exert a delivery action or a suction action on the interior of the container on which the cap is provided. Because containers filled with carbonated liquid, such as coke bottles and the like, are normally provided with screw thread, whereas wine bottles have no screw thread and hence cannot be provided with a pressure cap according to the invention, the pump assembly according to the invention can be used without any risk of mistakes.
- the mushroom-shaped valve 31 can optionally comprise additional arms that are provided under the hat 33 so as to extend obliquely downwards and that rest against the bottom of the chamber with spring action so as to press the conical portion 34 firmly into the bore 30.
- additional arms are shown at 62 in Fig. 7.
- the hourglass-shaped insert 26 can have its upper side provided with small projections to prevent the flange of the nozzle, which flange extends around the spout 9, from sticking to the upper side of the vacuum cap. The same effect can be achieved by providing the flange of the nozzle with such unevennesses.
- the insert can have its lower side, i.e. the side facing the chamber 29, provided with radial ribs to prevent sticking of the hat 33.
- piston of the pump could be provided with a nose extending into the spout 9 so as to reduce the dead volume of the pump, as is indicated in Fig. 8 by broken lines at 63.
- FIG. 4 An example of an altnerative pressure cap suitable for bottles which have no screw thread but which do contain carbonated or sparkling beverages, such as for instance champagne bottles, is shown in Fig. 4.
- the cap 70 shown in Fig. 4 has a shell 72 fitting around the neck 71 of a bottle and a top wall 73.
- the shell has a number of slots 74 and a number of resilient arms 75 which, behind the slots, extend downwards from the top wall.
- Lying around the shell is a ring 76 having projections 77 extending inwards through the slots.
- the ring can be moved up and down along the shell.
- the figure shows the ring in the lowest or locking position, wherein the ring pushes the arms 75 against the neck of a bottle.
- the neck of a bottle has a recess precisely below the edge and the arms have corresponding projections 78, engaging with the recess, so that the cap is firmly secured on the bottle if the ring is in the locking position, but can be removed from the bottle if the ring is slid towards the top wall of the cap.
- the top wall is again provided with a central recess 79, wherein the spout 9 of a pump member according to the invention can be inserted.
- the sleeve 13 is not sealingly connected to the cap 70 if the spout 9 is inserted into the recess 79. Consequently, the pump can draw in air via the sleeve and the air channels 12 when the piston is moved upwards.
- the cap 70 comprises a valve member 80 which is H-shaped in vertical section and whose upper part is fixedly mounted in the cap and which otherwise extends into the bottle, in the operating condition.
- the lower part of the valve member is made of relatively soft, supple material.
- the valve member comprises an upper cylindrical part 81, enclosing an upper chamber 82, and a lower cylindrical part 84, separated from the upper part by a transverse partition 83, which lower cylindrical part comprises a lower chamber 85.
- a transverse partition 83 which lower cylindrical part comprises a lower chamber 85.
- the channels 86 extend transversely through the wall of the upper part and connect the chamber 82 to one or more chambers, which may for instance have the shape of an annular groove 87, formed around the valve member at the location of the transverse partition.
- the pressure cap shown can also be employed as a replacement for the conventional champagne cork, even if one does not wish to use the possibility of creating an overpressure after the champagne has partly been finished.
- An advantage over the conventional champagne cork is that the cap according to the invention can readily be removed and fitted again by sliding the ring 76.
- a pump member according to the invention could also be included in an automized system, for instance for professional applications.
- the system should put the pump member in action.
- the type of cap automatically determines whether overpressure or underpressure is to be created.
- the system could be adapted to perform a predetermined number of strokes or to detect the counterforce and, as soon as the counterforce detected exceeds a predetermined value, switch off for instance the electric drive means for the pump member.
- a combination of the two possibilities is also conceivable, wherein the switching off on the basis of the counterforce could serve as an extra security.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95930054A EP0777605A1 (en) | 1994-09-05 | 1995-09-05 | Pump assembly |
AU33559/95A AU3355995A (en) | 1994-09-05 | 1995-09-05 | Pump assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9401444 | 1994-09-05 | ||
NL9401444A NL9401444A (en) | 1994-09-05 | 1994-09-05 | Vacuum and pressure pump. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996007590A1 true WO1996007590A1 (en) | 1996-03-14 |
Family
ID=19864616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1995/000299 WO1996007590A1 (en) | 1994-09-05 | 1995-09-05 | Pump assembly |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0777605A1 (en) |
AU (1) | AU3355995A (en) |
CA (1) | CA2199175A1 (en) |
NL (1) | NL9401444A (en) |
WO (1) | WO1996007590A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999003735A1 (en) * | 1997-07-17 | 1999-01-28 | Hubert Radermacher | Device for pressurizing a food receptacle which has been opened |
DE19939018A1 (en) * | 1999-08-18 | 2001-02-22 | Radermacher Hubert | Adapter for device for pressurizing drink container with air is connected between electrically driven pump and container and has suction tube which descends into drink, and manually operated valve |
AT410434B (en) * | 2000-10-31 | 2003-04-25 | Schiner Georg | Cap for keeping carbonated drinks from going flat has pin which pierces existing bottle cap with channel connecting with non-return valve on side of cap, allowing compressed air to be fed into bottle |
WO2005044667A1 (en) * | 2003-10-16 | 2005-05-19 | Braun Gmbh | System for evacuating a food container, container comprising a lid, and method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4175884A1 (en) | 2020-07-06 | 2023-05-10 | Glup LLC | Apparatus, system, and method for modified atmosphere packaging |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2172176A1 (en) * | 1972-02-13 | 1973-09-28 | Heikel Mahmoud | |
EP0234607A1 (en) * | 1986-01-20 | 1987-09-02 | Bernardus Johannes Josephus Augustinus Schneider | Stopper for a container and a pump connectable thereto |
US5010928A (en) * | 1990-07-13 | 1991-04-30 | Ballas Mitchell J | Repressurizer for carbonated drink containers |
US5031785A (en) * | 1990-02-14 | 1991-07-16 | Epicurean International Corp. | Combination vacuum/pressure pump and valve stopper for food or drink containers |
EP0478243A1 (en) * | 1990-09-28 | 1992-04-01 | Bermar International Limited | Device for preserving the contents of beverage containers |
GB2249084A (en) * | 1990-09-21 | 1992-04-29 | Design Marketing Limited | Closure means allowing venting of a beverage container |
-
1994
- 1994-09-05 NL NL9401444A patent/NL9401444A/en not_active Application Discontinuation
-
1995
- 1995-09-05 AU AU33559/95A patent/AU3355995A/en not_active Abandoned
- 1995-09-05 EP EP95930054A patent/EP0777605A1/en not_active Withdrawn
- 1995-09-05 CA CA 2199175 patent/CA2199175A1/en not_active Abandoned
- 1995-09-05 WO PCT/NL1995/000299 patent/WO1996007590A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2172176A1 (en) * | 1972-02-13 | 1973-09-28 | Heikel Mahmoud | |
EP0234607A1 (en) * | 1986-01-20 | 1987-09-02 | Bernardus Johannes Josephus Augustinus Schneider | Stopper for a container and a pump connectable thereto |
US5031785A (en) * | 1990-02-14 | 1991-07-16 | Epicurean International Corp. | Combination vacuum/pressure pump and valve stopper for food or drink containers |
US5010928A (en) * | 1990-07-13 | 1991-04-30 | Ballas Mitchell J | Repressurizer for carbonated drink containers |
GB2249084A (en) * | 1990-09-21 | 1992-04-29 | Design Marketing Limited | Closure means allowing venting of a beverage container |
EP0478243A1 (en) * | 1990-09-28 | 1992-04-01 | Bermar International Limited | Device for preserving the contents of beverage containers |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999003735A1 (en) * | 1997-07-17 | 1999-01-28 | Hubert Radermacher | Device for pressurizing a food receptacle which has been opened |
DE19939018A1 (en) * | 1999-08-18 | 2001-02-22 | Radermacher Hubert | Adapter for device for pressurizing drink container with air is connected between electrically driven pump and container and has suction tube which descends into drink, and manually operated valve |
AT410434B (en) * | 2000-10-31 | 2003-04-25 | Schiner Georg | Cap for keeping carbonated drinks from going flat has pin which pierces existing bottle cap with channel connecting with non-return valve on side of cap, allowing compressed air to be fed into bottle |
WO2005044667A1 (en) * | 2003-10-16 | 2005-05-19 | Braun Gmbh | System for evacuating a food container, container comprising a lid, and method |
Also Published As
Publication number | Publication date |
---|---|
AU3355995A (en) | 1996-03-27 |
NL9401444A (en) | 1996-04-01 |
CA2199175A1 (en) | 1996-03-14 |
EP0777605A1 (en) | 1997-06-11 |
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