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Publication numberUS3871550 A
Publication typeGrant
Publication dateMar 18, 1975
Filing dateMay 29, 1973
Priority dateMay 29, 1973
Publication numberUS 3871550 A, US 3871550A, US-A-3871550, US3871550 A, US3871550A
InventorsChiappe Wayne T
Original AssigneeContinental Can Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Push-in easy opening container
US 3871550 A
Abstract
An easy opening end closure for a container in which the end closure includes a panel having a pre-cut pour opening. The pour opening is sealed by a plastic closure having a portion permanently bound to the underside of the end. A remaining portion is releasably adhered to the underside so that upon downward pressure on the closure, it is released and hinges about the permanently bonded portion.
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Description  (OCR text may contain errors)

United States Patent 1191 [11] 3,871,550

Chiappe 1 Mar. 18, 1975 [5 1 PUSH-IN EASY OPENING CONTAINER 3,261,497 7/1966 Lipske 220/47 3,731,835 5/1973 Hawkins et al. 220/47 R [75] Inventor: Wayne ch'appet Hmsdale 3,779,417 12/1973 Klein 220/27 [73] Assignee: Continental Can Company, Inc.,

New York, NY, Primary Examiner-William I. Price Assistant Examiner-Steven M. Pollard [22] Flled: May 1973 Attorney, Agent, or Firm-John J. Kowalik; Joseph E. [21] Appl. NO; 365,004 Kerwin; William A. Dittmann 521 US. Cl. 220/339, 220/359 [57] ABSTRACT [51] Int 365d 41/00, 365d 43/14s 365d 51/04 An easy openmg end closure for a contamer 1n winch 581 Field of Search 220/47, 30, 32, 36, 51, the end closure includes a Panel having a P p 220/27, 53, 86 R, 375 5 opening. The pour opening is sealed by a plastic closure having a portion permanently bound to the un- [56] References Cited derside of the end. A remaining portion is releasably adhered to the underside so that upon downward pres- 472 476 i T i PATENTS 20/32 sure on the closure, it is released and hinges about the e s 1 2,147,004 2/1939 w sri e t a1. i i 220/47 permanently bonded Pomon' 3,217,951 11/1965 Pual 220/47 2 Claims, 3 Drawing Figures PUSH-IN EASY OPENING CONTAINER BACKGROUND AND SUMMARY OF THE INVENTION The present invention relates to easy opening containers and more particularly to an improved easy opening structure having a closure which is opened by the application of inward pressure to depress the closure into the container.

Push-in closures are well known as exemplified by US. Pat. Nos. 3,246,791, 3,334,775, and 3,236,409. The structure disclosed in these patents includes a closure member which is formed from a separate piece of material or from the metal end closure itself. These structures also each have a raw cut edge exposed to the product prior to opening or a cut edge exposed after opening.

The raw exposed edge prior to opening should be covered to prevent exposure and reaction with the product. The cut exposed edge after opening is undesirable because it may cause injury to the user of the container, particularly, if the container contents are of the type which may be consumed directly through the opening.

By the present invention, it is proposed to provide an easy opening structure of the push-in type which obviates the difficulties encountered heretofore with regard to cut-edges.

This is accomplished generally by providing the end closure of the container with a pre-cut pour opening. A plastic collar having a depending flange is seated in the opening and bonded to the end closure. The depending flange is in overlying relationship to the cut edge to prevent exposure thereof. A plastic closure member including an attachment ledge and a flap hingedly fastened thereto is bonded to the underside of the end closure to seal the opening. The flap is releasably bonded to the end closure so as to be releasable and hingedly pivoted about the attachment ledge upon application of inward pressure thereon.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged fragmentary top plan view of another embodiment of the invention.

FIG. 2 is a cross-sectional view taken generally along the lines 2-2 of FIG. 1 showing the closure in the sealed position and in the open position in phantom lines.

FIG. 3 is a fragmentary enlarged cross-sectional view through still another embodiment of easy opening structure.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to FIGS. 1 and 2, there is shown another embodiment of an easy opening arrangement 110 in which the panel 16 of the end closure of a container is provided with a pre-cut opening 111 having a pointed outer end 112 at the juncture of two inclined edges 113. The inclined edges extend from two side edges 114 which may be inclined slightly at the other ends. The other ends of the sides are joined to an inner side edge 116.

Seated about the edges of the opening and shaped complementary thereto is a collar 118 made from a suitable plastic. The collar 118 includes a downwardly depending flange 119 which is formed with a groove 121. The groove 121 received the cut edges of the opening 111.

A closure 122 made from a suitable plastic such as polyethylene, polypropylene or the like of a contour generally similar to the opening is mounted on the underside of the panel 16. The closure 122 includes a flap 123 and an attachment ledge 124. The flap 123 is connected to the attachment ledge 124 along a hinge line 126 defined by an area of reduced cross-section.

The flap 123 includes a marginal edge portion 127 bounding the edges 113-113 and ll4ll4 and which is releasably bonded to the underside of the panel 16 while the attachment ledge 124 is permanently bonded thereto.

A button 128 may be formed on the upper side of the flap 123 to project above the collar 118. Upon the application of a downward force on the button 128, the marginal edge portion 127 of the flap 123 releases from the underside of the panel. The flap 123 and the tongue 117 are then free to be hinged or bend to the phantom line position shown in FIG. 2'to permit the contents of the container to be emptied through the opening.

Referring now to FIG. 3, there is shown a third embodiment of easy opening construction 200. The easy opening structure includes an opening 211 formed in the panel 16 of the embodiment of FIGS. 1 and 2. Seated about the edge of the opening 211 is a collar 212 having a groove 213 which receives the cut edge of the opening. A strap 214 hingedly connects a flap 216 thereto. The flap 216 is formed with a raised portion 217 and a marginal edge portion 218 which is releasably bonded to the underside of the panel. Down ward pressure on the flap 216 causes the bond to be broken so that the flap 216 hinges at the hinge 214 to the phantom line position. In this position, the pour opening 211 is unobstructed to allow the contents to be emptied.

What is claimed is:

1. An easy opening end closure for a container com prising a metal panel, an opening formed in said panel, a closure made from plastic material underlying said opening and having a closure flap, flexible means providing an attachment band hingedly attached to said flap and permanently bonded to the underside of said panel and marginal edge portions about said flap releasably bonded to the underside of said panel about said opening, and said closure having a relatively inflexible thick button portion at one end and having a relatively thin flexible body portion between the band and button and said button projecting upwardly through the opening above the panel.

2. An easy opening end closure for a container comprising a metal panel, an opening formed in said panel, a closure made from plastic material underlying said opening and having a closure flap, flexible means providing an attachment band hingedly attached to said flap and permanently bonded to the underside of said panel and marginal edge portions about said flap releasably bonded to the underside of said panel about said opening, and a collar made from plastic material bonded about the edge of said opening to cover said edge, and said closure flap having a groove in alignment with said opening nesting'a lower edge portion of the collar therein.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1472476 *Aug 11, 1921Oct 30, 1923Joseph KendzierskiWaste trap
US2147004 *Sep 22, 1937Feb 14, 1939Wark Samuel ArnoldBeer can
US3217951 *Mar 1, 1962Nov 16, 1965Fr Hesser Maschinenfabrik Ag FClosure means for containers
US3261497 *Mar 2, 1964Jul 19, 1966Nat Can CorpCan
US3731835 *Aug 3, 1971May 8, 1973Continental Can CoEasy opening container
US3779417 *Feb 14, 1972Dec 18, 1973Klein GFlex tab for a gated can lid
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3952914 *Feb 24, 1975Apr 27, 1976Vogt Kuno JRe-sealable container lid
US3982658 *May 19, 1975Sep 28, 1976Continental Can Company, Inc.Easy opening container with retained closure
US4078695 *Nov 15, 1976Mar 14, 1978Crown Cork & Seal Company, Inc.Easy-opening can end and method of opening
US4103804 *Oct 6, 1975Aug 1, 1978Fournier E PClamp action sealing device for tab opening cans
US4122971 *Dec 23, 1977Oct 31, 1978Crown Cork & Seal Company, Inc.Easy opening can end with push-in tabs
US4138033 *Jan 16, 1978Feb 6, 1979Payne Larry ELiquid container lid
US4465393 *Aug 25, 1981Aug 14, 1984Springfix-Befestigungstechnik GmbhPlastic ball socket extruded in one piece for a ball-and-socket joint
US4557398 *Aug 17, 1984Dec 10, 1985International Paper CompanyEnd closure structure for a container
US4865215 *Jun 15, 1988Sep 12, 1989Wells Robert AReclosable self-opening can end
US5402921 *Aug 10, 1993Apr 4, 1995Weatherchem CorpRotor-type dispenser
US5566850 *Dec 5, 1994Oct 22, 1996Weatherchem CorporationRotor-type dispenser
US6488187 *Dec 21, 2000Dec 3, 2002Brent River Packaging CorporationSifter dispensing cap and base
US8376174 *Feb 19, 2013Thomas A. NerswickSpill proof snack bowl
US20030213803 *Mar 31, 2003Nov 20, 2003Chasteen Howard C.Beverage can end with a straw opening end
US20050051552 *Sep 5, 2003Mar 10, 2005S2 And Family, L. L. C.Self-closing lid for beverage cups and the like
US20050144708 *Dec 24, 2004Jul 7, 2005Nerswick Thomas A.Spill proof snack bowl
Classifications
U.S. Classification220/825, 220/837, 220/359.1
International ClassificationB65D41/32, B65D17/00, B65D17/50
Cooperative ClassificationB65D17/16, B65D17/506
European ClassificationB65D17/50B, B65D17/16