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Publication numberUS3339812 A
Publication typeGrant
Publication dateSep 5, 1967
Filing dateOct 21, 1965
Priority dateOct 29, 1963
Publication numberUS 3339812 A, US 3339812A, US-A-3339812, US3339812 A, US3339812A
InventorsMeissner William E
Original AssigneeFmc Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Molded container having discharge spout
US 3339812 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Sept. 5, 1967 w s5 3,339,812

MOLDED CONTAINER HAVING DISCHARGE SPOUT Original Filed Oct. 29, 1963 United States Patent 7. 3,339,812 MOLDED CONTAINSER EAVING DISCHARGE William E. Meissner, Devon, Pa., assignor to FMC Corporation, Philadelphia, Pa., a corporation of Delaware Original application Oct. 29, 1963, Ser. No. 319,717, now Patent No. 3,266,658, dated Aug. 16, 1966. Divided and this application Oct. 21, 1965, Ser. No. 499,344

-- 1 Claim. (Cl. 222566) ABSTRACT OF THE DISCLOSURE A molded plastic container of seamless, unbroken and unitary construction having re-entrant wall portions which mate with corresponding re-entrant portions formed within a spout for mechanically attaching the latter to the container without damaging its unbroken construction.

This application is a division of myapplication Ser. No. 319,717 filed Oct. 29, 1963, now United States (Patent 3,266,658.

'The present invention relates to fluid-tight molded containers having attached preformed discharge spouts.

It is conventional in the art to mold "containers and subsequentlyattach spouts thereto by adhesives, separate fasteners, etc. The mode of attaching such preformed spouts usually demands greater care and accuracy during the molding operation, entailsadded operations and material costs and often may involve some sacrifice in the structural and fluid-tight integrity of the container itself. Accordingly, a primary object of this invention is to provide improved molded containers having attached preformed discharge spouts.

Another object is to provide improved molded containers having preformed spouts which are attached thereto without the use of adhesives or separate fasteners.

Still another object is the provision of molded containers of seamless and unbroken construction having preformed spouts attached thereto without any sacrifice in the container strength or fluid-tight characteristics.

Still further objects will appear from the following description.

The container of the present invention includes a molded plastic body which is of seamleses, unbroken and unitary construction and a preformed spout which is mechanically interlocked with the container body. More particularly, the container body and spout are both formed with mating re-entrant or undercut portions which cooperate to lock such body and spout snugly together. The spout does not penetrate the wall of the container body so that there is no reduction in the strength of the body nor any increased risk of leakage in the area of spout attachment.

Aside from having re-entrant portions for securing an interlock with the container body the spout may have a discharge passage of any desired size and may be of any configuration. For example the spout may be formed with external serrations or threads for retaining a cap, tube or perhaps a baby feeding nipple or the like.

The provision of a spout cap is not essential but is desired for preventing foreign matter from entering the spout discharge passage and to protect the contents after the container has been opened. Preferably a cap is employed, such cap having a pin which projects into the spout discharge passage. Normally such cap is threaded onto the spout only to retain the same in place and with its pin spaced from that portion of the container body covering the entrance end of the spout discharge passage. When the cap is advanced further onto the spout, its pin will puncture the container body and thus permit easy removal of the container contents. In the absence of such 3,339,812 Patented Sept. 5, 1967 specific cap a sharp instrument, similar to a pin, may be 3 inserted through the spout discharge opening to effect rupture of the container body.

' The container of the present invention is formed as more fully described in my copending application Ser. No. 374,481 filed June 11, 1964, now abandoned, such application being a continuation of my above-noted application Ser. No. 319,717. Briefly, the container of the present invention is formed by expanding a gob, parison or closed tube of plastic or molten film-forming material as a seamless envelope against the internal walls of a desirably shaped mold and into engagement with a preformed spout which is supported within such mold, and thereafter causing the expanding envelope of film-forming material -to set. The preformed spout which is employed must be shaped with undercut or re-entrant por- 7 tions with which the film-forming material interlocks as operation it flows into and about the undercut portions of the preformed spout without being ruptured or punctured. As a result, in the finished container the portion of the Wall thereof to which the preformed spout is attached retains its continuous, unbroken and fluid-tight characteristics.

The preformed spouts which are attached to the containers may be formed of metal, plastics or any other suitable materials which are capable of withstanding the conditions encountered during the molding operation.

The container of the present invention may be made from a wide variety of materials which may be rendered plastic or in a flowable condition. Preferred types include the synthetic linear polymers of thermoplastic character and the elastomeric types. Examples include vinyl resins, such as polyvinyl acetate, copolymers of vinyl chloride and vinyl acetate, copolymers of acrylonitrile and vinyl acetate, polyacrylonitrile and copolymers of acrylonitrile with vinyl chloride, vinyl acetate, methacrylonitrile, and sco forth, polyethylene, linear superpolymers of the polyester of nylon (polyamide) type, polyvinyl butyral, polyvinyl alcohols, polyvinyl ethers; elastomeric types may include neoprene, polymers of chloroprene, copolymers of butadiene with styrene or acrylonitrile, polyisobutylene, and so forth. It is to be understood that the mentioning of these particular materials is not intended to limit the invention thereto but merely to illustrate the wide variety of film-forming materials that can be used in carrying out the invention. Of course, the selection of any particular material depends upon the character of the material which is to be packaged in the finished container. Thus, polyvinyl acetate, polyvinyl acetals and polyvinyl alcohols and neoprene, especially the latter two types, are highly advantageous when packaging oils, especially of the hydrocarbon type. Polyvinyl acetate, polyvinyl chloride, related copolymers of these two monomers, and polyethylene are, on the other hand, particularly adapted for packaging of aqueous liquids.

The single figure of the drawing is a side view of the container of the present invention, with a portion thereof being shown in section.

With reference to the drawing, the container of the present invention includes a body 11, a preformed spout 13 and a cap 15 threaded onto the spout 13. The body 11 is formed of thermoplastic material and is of seamless, unitary, unbroken or closed construction. This body includes a portion 17 which projects outwardly from the remainder of such body and extends into and is interlocked with a re-entrant or undercut portion 19 formed in the spout 13.

As heretofore mentioned, the container body 11 is formed by expanding a gob of plastic or molten filmforming material into and against the re-entrant or undercut portion 19 of the spout 13 and then set in its expanded position. As a result, the projecting portion 17 of the container body 11 conforms with the re-entrant or undercut portions 19 of the spout 13 and is snugly retained in its interlocked position. It will be noted that the spot 13 does not penetrate the container body 11 and that the body 11 does not suffer any reduction in wall thickness in the area of spout attachment. Thus, in the finished container the container body remains completely closed and retains its desired unbroken and fluid-tight characteristics.

Access to the container body is achieved by puncturing the portion 17 of the container body which is adjacent to the entrance end of the spout discharge passage 21. In the preferred construction illustrated, this is facilitated by a pin 23, having pointed ends 25, and which projects from the underside of the cap 15 and into the spout discharge passage 21. Normally, and as illustrated in the drawing, the pointed ends 25 of the cap pin 23 are located above the portion 17 of the container body 11. However, when the cap 15 is advanced further onto the spout 13 the pointed ends 25 of the cap pin 23 will puncture the portion 17 of the container body and thus permits the container contents to be removed through the spout.

It is to be understood that changes and variations may be made without departing from the spirit and scope of the invention as defined in the appended claim.

I claim:

A molded container formed of organic plastic material having a completely closed body of seamless, unbroken, unitary construction, including a top wall having a portion thereof spaced above the main portion thereof and connected thereto by re-entrant wall portions, all portions of said container body being of substantially uniform wall thickness, and a spout formed with reentrant portions adjacent to the entrance end of the spout discharge passage, said entrance end of the spout discharge passage being located abuttingly adjacent to said raised portion of the container top wall, with the re-entrant portions on the spout being matingly interlocked with the corresponding re-entrant wall portions on the container body, whereby the spout is attached to the container body without reducing its wall thickness and without damaging its unbroken, seamless and unitary construction and said raised wall portion covers the entrance end of the spout discharge passage.

References Cited UNITED STATES PATENTS 2,342,372 2/ 1944 Scherer 222541 2,596,415 5/1952 Kochner 222541 2,663,463 12/1953 Benbury et a1. 222-215 2,771,218 11/1956 Henderson 222-83 3,128,913 4/1964 Spechter 222566 X 3,187,966 6/1965 Klygis 222-541 3,204,835 9/ 1965 Michel 222-541 FOREIGN PATENTS 221,053 4/ 1959 Australia. 1,284,621 1/1961 France.

RAPHAEL M. LUPO, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2342372 *Jun 6, 1940Feb 22, 1944Robert P SchererCapsule
US2596415 *Feb 21, 1949May 13, 1952Knapp Monarch CoSpraying device
US2663463 *Jun 11, 1949Dec 22, 1953Pennsylvania Salt Mfg CoContainer having a flexible nozzle and a flexible cap
US2771218 *May 19, 1954Nov 20, 1956Edward HendersonClosure assembly
US3128913 *Nov 29, 1960Apr 14, 1964 Container spout having its outlet passage sealed by
US3187966 *Jul 9, 1963Jun 8, 1965Continental Can CoFlexible container with snip-off and reseal features
US3204835 *Dec 4, 1962Sep 7, 1965American Can CoTube structure
AU221053B * Title not available
FR1284621A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3537112 *Aug 18, 1967Nov 3, 1970Goodman Richard EToilet deodorant
US3598428 *Jan 19, 1970Aug 10, 1971Mueller CoPipe coupling
US3746001 *Oct 20, 1971Jul 17, 1973Baxter Laboratories IncPierceable access port for parenteral solution containers
US3924777 *Feb 1, 1974Dec 9, 1975Continental Can CoNon-detachable easy open flap and tab assembly
US4052986 *Sep 19, 1975Oct 11, 1977Reckitt & Colman Products LimitedDevice for introducing medicaments or the like into body cavities
US4225058 *May 25, 1979Sep 30, 1980Usm CorporationNozzle cap having opening means
US4747501 *Jul 8, 1987May 31, 1988National Plastics LimitedContainer closure method
US4930683 *Feb 28, 1989Jun 5, 1990Pkl Verpackungssysteme GmbhParallelepipedal flat gabled package and method of manufacture
US5094367 *Jun 22, 1989Mar 10, 1992Societe Generale Des Eaux Minerals De VittelOpening-closing device for a bag of flexible synthetic material having a finger gripping portion
US5125522 *Dec 22, 1988Jun 30, 1992Abbott LaboratoriesEnteral delivery set assembly
US5248054 *Sep 1, 1992Sep 28, 1993Tetra Alfa Holdings SaOpening arrangement for a container package
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US5330076 *Apr 27, 1993Jul 19, 1994Orihiro Co., Ltd.Filling connector and dischargeable bag
US5372300 *Jul 1, 1993Dec 13, 1994Tetra Laval Holdings & Finance S.A.Opening device for a packaging container
US5498225 *Mar 16, 1992Mar 12, 1996Tetra Laval Holdings & Finance S.A.Opening device for a packaging container and method of manufacturing the same
US5566845 *Feb 1, 1995Oct 22, 1996Idea Laboratories, Inc.Container having a seal puncturing device
US6206222Aug 28, 1998Mar 27, 2001Ball CorporationResealable closure on seamed can end
US6516964 *Nov 27, 2000Feb 11, 2003Mannesmann Vdo AgFuel tank
US6754965 *Nov 28, 2000Jun 29, 2004Len C. KretchmanIntegrated sandwich crimping tool
US7427005Nov 27, 2002Sep 23, 2008Owens-Illinois Closure Inc.Dispensing closure, package and method of assembly with film seal piercing
US8568135 *May 17, 2010Oct 29, 20132268447 Ontario IncDevice for lighting and extinguishing candles
US20110281224 *May 17, 2010Nov 17, 2011Spark Innovations, Inc.Device for lighting and extinguishing candles
DE102005004759A1 *Feb 1, 2005Aug 10, 2006Ball Packaging Europe GmbhWiederverschliessbare Dose und Verfahren zu deren Herstellung
EP0505851A1 *Mar 13, 1992Sep 30, 1992Tetra Laval Holdings & Finance SAOpening device for a packaging container and method of manufacturing the same
EP0530677A1 *Aug 27, 1992Mar 10, 1993Tetra Laval Holdings & Finance SAAn opening arrangement for a container package
WO1999010242A1 *Aug 28, 1998Mar 4, 1999Ball CorpResealable closure on seamed can end
Classifications
U.S. Classification222/566, 222/83, 222/562, 220/278, 222/541.2
International ClassificationB65D51/22, B65D51/18
Cooperative ClassificationB65D2251/0056, B65D51/222, B65D2251/0015, B65D2251/0096
European ClassificationB65D51/22A1