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Publication numberUS2423965 A
Publication typeGrant
Publication dateJul 15, 1947
Filing dateJan 14, 1944
Priority dateJan 14, 1944
Publication numberUS 2423965 A, US 2423965A, US-A-2423965, US2423965 A, US2423965A
InventorsCoyle John
Original AssigneeContinental Can Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for forming end closures in paper containers
US 2423965 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

J. COYLE July 15, 1947.

APPARATUS FOR FORMING END CLOSURES IN PAPER CONTAINERS Filed Jan. 14, 1944 f VIII/4m Patented July 15, 1947 p UNITED STATES PATENT OFFICE 2,423,965? I APPARATUS FOR FORMINGEND CLGSURES PAPER CONTAINERS v John Coyle, Baltimore, Md.-, -assignor to Continental Can Company, Inc.,' New York, N. Y., a corporation of New York Application January 14, 1944,.Seiial No. 518,295

-1 Claim. (01. 93 55.1)

The invention relates generally to the art of manufacturing paper containers and seeks to provide a novel apparatus for forming end closures in such containers.

When container structures are formed entirely of paper, the end closures are, of course, secured in place by an adhesive union with the body stock. In effecting these unions, the use of instantane ously setting adhesives has not proven entirely satisfactory. In the employment of vegetable, animal or mineral glues, the best results have been obtained when the surfaces to be adhered have been held together for an interval of time, say twenty or more seconds. The present invention resides in providing a novel apparatus for holding paper container body and end closure surfaces together in a manner for assuring the provision of a perfect union therebetween.

Another object of the invention is to provide an improved apparatus which includes an expansible circular element insertible in the cup shaped end closure inserted in an end of a container body, and means for bringing about expansion of said element to tightly press and hold the annular Wall or skirt of the closure against the opposing wall portions of the body.

Another object of the invention is to provide an apparatus of the character stated in which the expansible element comprises a rubber disk or ring-and in which there are'iincluded two presser platesopposing the ringat the upper and lower sides thereof and which are movable together to deform the rubber disk between them and cause it to expand uniformly outwardly in all directions, or apart to permit the rubber disk to relax and assume its normal condition in which it is readily insertible, into the annular wall or skirt of the end closure.

Another object of the invention is to provide an apparatus of the character stated in which the plates are carried ontube structures telescopically arranged, one within the other, and in which one plate ha the face thereof which opposes the cooperating plate flared so as to form with the opposing plate a rubber disk receiving space which is wedge shaped in radial cross section thereby to facilitate the desired outward deformation of the disk when the plates are pressed together.

Another object of the invention is to provide in an apparatus of the character described a suction tube extending through the plate carrying tubes into position for engaging and supporting an end closure with its annular wall or skirt surrounding the deformable rubber disk.

Vi/ith the above and other objects in view that will hereinafter appear, the nature of the inven tion will be more fully understood by following the detailed description, the appended claim and the several views illustrated in the accompanyingdrawihgs';

in the drawings. v 7

'igur 1 is a fragmentary sectional view illustrating the '-open end of a paper container body and a paper end closure-about to be inserted therein. r r I Figure 2 is a vieW'si-rnilar to Figure 1 illustratin the'end closure inserted in the-container bee-y and the end closure pressing or securing apparatesnserted in the end closure prior to expan sion' thereof. 3 is a vie-w similar to Figure 2 and mustr'ates the expanded-condition of the apparatus.

In the example'of embodiment of the invention herein disclosed 5 designates a paper con-'- tain er body which may be formed lay-either con-- volute'lyor spirally winding the web stock in the mannenwe'll known in the art; A cup shaped end closure 6,:als'o formed of paper, is provided for insertion iri-an open end of the container body for eflectiiig closure thereof, and the end member may 'be die-shaped so as" to provide the annular wall or skirt-"l. The end closure 5 is inserted in the open endfof' the container bodyin the man- 'n'er-illustrated-inFigure 2 with an adhesive 8 in terposed-betweenthe outer-face of the end closure skirt 'Landthe inner face of the container body 5. The adhesive may be of any suitable type and may be applied to the external face of the skirt 1, to the internal face of the container body 5, or to both of the opposing faces of these elements.

A suction tube 9 having a suction cup I0 at the end thereof may be employed to facilitate the handling of the end closure 6 in the manner illustrated in Figure 1.

The apparatus employed to effect the desired adhesive union between the end closure 6 and the container body 5 includes a ring or disk I I formed of some deformable material, such as rubber, or a suitable substitute. The upper and lower faces of the disk or ring I I are engaged by plate members l2 and I3, the former being carried at the lower end of an inner tube I4, and the latter being carried at the lower end of an outer tube I5 telescopically surrounding said tube 14. It will be observed by reference to Figures 2 and 3 of the drawingsthat the suction tube 9 extends downwardly through the tubes I4, I 5 into position for 3 engaging the end closure 6 in the manner illustrated.

The upper face of the lower plate I2 is outwardly flared as at IB soas to cooperate with the opposing under surface of the upper plate IS in providing a space in which to receive the disk or ring ll, said space being wedge shaped'in' radial cross section.

The deformable disk or ring H is so dimensioned as to be readily receivable within the skirt 1 of the end closure 6 when it is in repose as illustrated in Figure 2, but it will be apparent that when the plates l2 and I3 are moved relatively so as to reduce the space therebetween, the element l I will be deformed outwardly in the manner illustrated in Figure 3 so as to exert pressure against the whole of the circumference of the end closure flange or wall portion '1. It will be obvious that the outward flaring of the upperv surface of the lower plate l2 and the resultant provision of the wedge shaped space in which the deformable element II is mounted facilitates the desired outward expansion or deformation of the element I I.

When it is desired to efiect the adhesive union between the end closure and the container body, the end of the container body is surrounded by half mold members I1 shaped to conform to the exterior of the container body 5 as illustrated in Figure 3. The apparatus in repose, in the condition illustrated in Figure 2, is then actuated to exert outward pressure against the end closure flange or wall portion 1. This is accomplished in the manner previously stated by bringing the plates I2 and I3 together in a manner for deforming, or outwardly expanding the disk or ring II in the manner illustrated in Figure 3 for tightly pressing the skirt 1 against the body-5 throughout the whole circumference thereof. The confining half mold members l'l oppose the outward pressure exerted by the deformable element II, and the pressure against, the end closure skirt is held for an interval sufficient to assure proper setting up of the adhesivdafter which the pres:

sure is released and theclosure container body is separated from the apparatus. vAn interval of twenty seconds or more may be found desirable to assure the settingnup of some forms of adhesive.

The pressing of the, closure body skirt I. and tightly holding the same against the opposing wall of the container body 5 in the manner hereinabove described. tends to force the adhesive 4 vehicle and also the adhesive into the pores of the paper container parts 5 and 1, as indicated at [8 in Figure 3, and results in the formation of an adhesive union which is so eificient as to defy separation of the parts without tearing of the paper.

It is to be understood that the details of construction of the cooperating parts can be variouslychanged without departing from the spirit and scope of the invention, as defined in the appended claim.

What is claimed is: 1 Apparatus for efiecting an adhesive union between 'a paper container body and a cup shaped paperclosure inserted in an end thereof and having an'outwardly directed skirt with an adhesive applied to the outer surface thereof or on the internal wall portion of the body which it opposes, said apparatus comprising, a deformable disk having an edge portion dimensioned to be freely insertible within the closure skirt when in repose, upper and lower plate members engaging at opposite faces of said disk and effective when moved relatively in a direction for reducing the space therebetween to deform the disk between them and cause it to be extended outwardly and tightly press and temporarily hold the skirt against the body throughout the whole circumference thereof, a tube member carrying one of said plates, a tube member carrying the other of said. plates, said tube members being telescopically arranged one within the other, and a suction tube extending through said tubes into position for engaging and holding the closure during insertion thereof into the body end. r


REFERENCES CITED The following references are of record in the file of this patent:

'UNITED STATES PATENTS Number Name 537,732 Great Britain July 3, 1941

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1608617 *Jul 14, 1925Nov 30, 1926Tulip Container CorpMachine for assembling containers
US1823102 *Aug 6, 1927Sep 15, 1931Gerhard HomeyMethod of producing vessels from pressed wood or plywood
US2082167 *Jan 2, 1934Jun 1, 1937Sanitary Metal Cap CorpBottle capping machine
US2105582 *Dec 1, 1936Jan 18, 1938Kleentainers British & OverseaMachine for the manufacture of cartons and the like
US2296889 *May 13, 1940Sep 29, 1942Lee M WileyProcess of and apparatus for forming seamless fiber stock containers
GB537732A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2640493 *Feb 6, 1952Jun 2, 1953Boeing CoFitting for flexible fuel cells
US2661790 *Sep 4, 1947Dec 8, 1953Extruded Plastics IncMachine for making tubular containers
US2726184 *Nov 1, 1952Dec 6, 1955Purolator Products IncMethod of providing seals for filters
US2747345 *Oct 3, 1949May 29, 1956Plastino James JMethod of sealing cans
US2750097 *Jul 16, 1952Jun 12, 1956Moore George ArlingtonContainers and method of making same
US2795348 *Jun 12, 1953Jun 11, 1957Walter KunikSealable container and method and apparatus for sealing the container
US2928607 *May 6, 1959Mar 15, 1960Harold ShamesSelf-cleaning aerator
US2962408 *May 13, 1955Nov 29, 1960Eternit Societa Per AzioniMethod for producing sockets on pipes
US2989432 *Mar 16, 1956Jun 20, 1961by out the method of the inventionMethod of making closure discs
US4164110 *May 19, 1977Aug 14, 1979Michel SoubeyratMethod for fixing protective sheets about rolls of material
US4599123 *Sep 2, 1982Jul 8, 1986Esselte Pac AktiebolagMethod and apparatus for manufacturing a container having an inner end closure
US4640733 *May 19, 1984Feb 3, 1987Bogren Ingemar S BApparatus for forming and inserting an internal lid in a container
US4724654 *May 21, 1987Feb 16, 1988Akerlund & Rausing Licens AktiebolagExpandable type lid welding piston
US4989394 *Nov 21, 1989Feb 5, 1991Akerlund & Rausing Licens AktiebolagPress plunger having separable press ring
US5339600 *Mar 22, 1993Aug 23, 1994Shibuya Kogyo Co., Ltd.Cap conveying unit
US5400917 *Dec 30, 1993Mar 28, 1995Stanton; Steven W.Box Construction and method
US6643992 *Oct 8, 2001Nov 11, 2003B Plus Development (S.A.)Process and machine for fastening objects into a box having a square or rectangular cross-section
US7182116Mar 1, 2002Feb 27, 2007Steag Hamatech AgDevice for joining substrates
US8414462Jan 14, 2011Apr 9, 2013Sonoco Development, Inc.Apparatus and method of making a paper end with a pressed chuck wall
US20040094271 *Mar 1, 2002May 20, 2004Alexander HuppDevice for joining substrates
DE1008560B *Jul 21, 1953May 16, 1957Jagenberg Werke AgVorrichtung zum Verpressen von runden oder eckigen Behaeltern
DE1055936B *Mar 30, 1955Apr 23, 1959Me Kox IndVorrichtung zur Erzeugung von Pflanzentoepfen od. dgl. aus Faserpuelpe
EP0074343A2 *Aug 27, 1982Mar 16, 1983Akerlund & Rausing Licens AktiebolagMethod and apparatus for manufacturing a container having an inner end closure
EP0370979A2 *Oct 25, 1989May 30, 1990Akerlund & Rausing Licens AktiebolagPress plunge having a separate press ring
WO2002077985A1 *Mar 1, 2002Oct 3, 2002Steag Hamatech AgDevice for joining substrates
U.S. Classification493/108, 493/84, 220/612, 156/294, 156/423, 53/362
International ClassificationB29C65/48, B31B17/00, B29C65/00, B31F1/00, B29C65/78
Cooperative ClassificationB29C65/7847, B29C66/534, B29C66/612, B29C65/00, B29K2711/126, B31B2217/082, B31B2201/60, B29C65/48, B29C66/81457, B31F1/0083, B31B1/60, B31B17/00
European ClassificationB31B1/60, B29C65/78F4, B29C66/612, B29C66/81457, B29C66/534, B29C65/00, B31B17/00, B31F1/00C4