Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3705670 A
Publication typeGrant
Publication dateDec 12, 1972
Filing dateJan 28, 1972
Priority dateAug 5, 1970
Publication numberUS 3705670 A, US 3705670A, US-A-3705670, US3705670 A, US3705670A
InventorsDouty Donald L
Original AssigneeUnited States Steel Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Can end with bonded seal slide
US 3705670 A
Abstract
A can end is provided with a pour opening having a pour width. The pour opening is provided with an entry aperture at one end of the pour opening. The entry aperture has a slide width greater than the pour width. The can end has a can end lapping portion and a can end sealing portion adjacent the pour opening and a plane of bulge strength adjacent the entry aperture. A slide has a pivot on the can end, is adapted to pass through the entry aperture and has a slide lapping portion and a slide sealing portion. The slide lapping portion is adapted to register with the can end lapping portion, and the slide sealing portion is adapted to register with the plane of bulge strength. A pull tab has a connection to the slide. Engaging means engage the can end lapping portion to press the can end lapping portion into intimate contact with the slide lapping portion and the slide sealing portion into intimate contact with the plane of bulge strength. A pressure barrier material is used for sealing the intimately contacting can end sealing portion and the slide lapping portion and also for sealing the intimately contacting plane of bulge strength and the slide sealing portion. The pressure barrier material is bonded to the can end sealing portion with a first predetermined shear strength and to the slide lapping lapping portion and to the plane of bulge strength with a second predetermined shear strength less than the first predetermined shear strength. The pull tab is rotatable about the pivot to break the bond between the slide lapping portion and the pressure barrier material adjacent the can end sealing portion so that the pressure barrier material adjacent the can end sealing surface now functions as an exit and reclosure slide guide. The pull tab causes breakage of the bond between the pressure barrier material adjacent the plane of bulge strength and the slide sealing portion and causes the slide to move through the entry aperture on the pressure barrier material adjacent the plane of bulge strength and such pressure barrier material to act as a guide to uncover the pour opening.
Images(34)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent I Douty [451 Dec. 12, 1972 [541 CAN END WITl-l BONDED SEAL SLIDE [73] Assignee: United States Steel Corporation [22] Filed: Jan. 28, 1972 [21] Appl. No.: 221,548

Related U.S. Application Data [62] Division of Ser. No. 146,945, May 26, 1971, which is a division of Ser. No. 61,384, Aug. 5, 1970,1at. No.

[52] U.S. Cl. ..222/541, 222/560, 222/561, x I 220/41, 220/53 [51]' Int. Cl. .L ..B65d'47/l0 [58] Field of Search ..222/541, 559, 560, 561, 153, 222/555; 220/41, 47, 53, 54, 23, 46; 222/7 Primary Examiner-Stanley H. Tollberg Attorney-Robert J. Leek, Jr. 1

[5 7] ABSTRACT A can end is provided with a pour opening having a pour width. The pour opening is provided with an entry aperture at one end of the pour opening. The entry aperture has a slide width greater than the pour width. The can end has a can end lapping portion and a can end sealing portion adjacent the pour opening and a plane of bulge strength adjacent the entry aperture. A slide has a pivot on the can end, is adapted to pass through the entry aperture and has a slide lapping portion and a slide sealing portion. The slide lapping portion is adapted to register with the can end lapping portion, and the slide sealing portion is adapted to re- 'gister with the plane of bulge strength. A pull tab has a connection to the slide. Engaging means engage the can end lapping portion to press the can end lapping portion into intimate contact with the slide lapping portion and the slide sealing portion into intimate contact with the plane of bulge strength. A pressure barrier material is used ,for sealing the intimately contacting can end sealing portion and the slide lapping portion and also for sealing the intimately contacting plane of bulge strength and the slide sealing portion. The pressure barrier material is bonded to the can end sealing portion with a first predetermined shear strength and to the slide lapping lapping portion and to the plane of bulge strength with a second predetermined shear strength less than the first predetermined shear strength. The pull tab is rotatable about the pivot to break the bond between the slide lapping portion and the pressure barrier material adjacent the can end sealing portion so that the pressure barrier material ad'acent the can end sealin surface now fun tions as ari exit and reclosure sli e guide. The pul tab causes breakage of the bond between the pressure barrier material adjacent the plane of bulge strength and the slide sealing portion and causes the slide to move through the entry aperture on the pressure barrier material adjacent the plane of bulge strength and such pressure barrier material to :act as a guide to uncover the pour opening.

9 laims, myrawjna r PKTE'N'TED um: 12 m2 SHEET OZUF 34 mm 2. 2 mm /IIIIIIIIII PA TENTED 12 I973 SHEET OSUF 34 Yw N PATENTEI] DEC 12 I572 SHEET OBUF 34 PATENTED DEC 12 I972} SHEET 100F311 PA'TENIED DEC 12 mm SHEET 11 0F 34 PATENTED DEC 12 I972 SHEET 12UF 34 PATENTED DEB 12 I972 sum 13 0F 34 FIG. |2A

FIG. I28

PATENTED DEC 12 I972 SHEET 166F34 FIG. IBE

FIG. l3-F PATENTED DEC 12 m2 sum 17 0F 34

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2629534 *Oct 8, 1947Feb 24, 1953Reynolds Julian LContainer
US3250436 *Dec 31, 1963May 10, 1966Kurtz Albert JPouring spout assembly for a dispensing container
US3308986 *Sep 30, 1964Mar 14, 1967American Can CoPlastisol coatings for easy-open container ends
US3363798 *Oct 11, 1965Jan 16, 1968Panagiotis M. GarangiotisSliding closure for a pressurized beverage container
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3856184 *Aug 30, 1972Dec 24, 1974Crown Cork & Seal CoEasy-opening container closure having a sliding tab
US4170724 *Mar 24, 1978Oct 9, 1979Waterbury Nelson JVendable reclosable beverage container
US7918359May 10, 2007Apr 5, 2011Crown, Packaging Technology, Inc.Opening device
US8240498Oct 31, 2006Aug 14, 2012Crown Packaging Technology, Inc.Resealable closure
US8336725Aug 14, 2006Dec 25, 2012Crown Packaging Technology, Inc.Sealing device for a container
US8336726Nov 7, 2008Dec 25, 2012Crown Packaging Technology, Inc.Resealable beverage can end and methods relating to same
US8833585May 22, 2009Sep 16, 2014Crown Packaging Technology, Inc.Resealable beverage can ends
Classifications
U.S. Classification222/541.9, 220/367.1, 222/561, 220/270, 222/560, 220/345.1
International ClassificationB65D17/00, B65D17/50, B65D47/28, B65D47/26, B65D47/04
Cooperative ClassificationB65D47/286, B65D17/506, B65D17/165, B65D47/265
European ClassificationB65D17/16B2, B65D47/28D, B65D17/50B, B65D47/26D4
Legal Events
DateCodeEventDescription
Mar 31, 1989ASAssignment
Owner name: USX CORPORATION, A CORP. OF DE, STATELESS
Free format text: MERGER;ASSIGNOR:UNITED STATES STEEL CORPORATION (MERGED INTO);REEL/FRAME:005060/0960
Effective date: 19880112