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US3908856A Expired / Lapsed US ⏱️ 0.0 years remaining

Container opening segment with swivel attachment

Assignee: Individual
•
Filing: 1973-04-26
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Granted: 1975-09-30
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Expires: 1993-04-26
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Abstract

Abstract An easy openable container top having a segmental opening area defined by a score line with manually operated pull tab, and in which the segment remains attached to the container after opening. The attaching means comprises a compact flexible arm member having one end attached to the segment, and extending out to attachment means to the top. Attachment means preferably allows pivoting so after the segment is torn out it is swiveled to a position clear of the opening, where it does not interfere with drinking from the container or pouring out contents. Longitudinal ribbing serves to keep the main area of the segment comparatively flat during tear out for compact storage against the top. Attachment arm is preferably made of a polyamide or polypropylene for strength, flexibility, and retention of shape. A recess may be provided in the top for depressed storage of segment after opening. For openable segments having the pull tab attached near the can rim, and where the metal near the rivet is therefore doubled back sharply on opening, a small rib alongside the rivet makes the curvature more gradual to prevent break-off, or there may be a rib on each side of the rivet. Easier break away of the segment from the top at final end of the opening operation may be obtained by means of a rib which extends out across the end score line. Or supplementary score line grooving on the underside may be provided for this purpose. Container top may be of any suitable material, including aluminum, steel, and plastic. Segment may tear from the inner region toward the rim, or from the rim inward, and segment may be of any size or shape, elongated or circular, and even up to almost full top area.

Inventors

  • 👤 Walter Merton Perry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 20:12
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/4012

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 114 words
A container top having an openable segment defined by a score line, a pull tab held by securement means to said segment for manual removal of said segment from said top to form an opening, and means for attachment of said segment to said top after opening comprising: a. an arm member extending from saId segment to said container top; b. attachment means between said arm member and said segment with said attachment means positioned at a point spaced away from said pull tab securement means; c. attachment means between said arm member and said container top on the upper side of said top to permit positioning of said segment away from said opening.
Claim 2
Dependent Claim 114 words
A container top having an openable segment defined by a score line, a pull tab held by securement means to said segment for manual removal of said segment from said top to form an opening, and means for attachment of said segment to said top after opening comprising: a. an arm member extending from saId segment to said container top; b. attachment means between said arm member and said segment with said attachment means positioned at a point spaced away from said pull tab securement means; c. attachment means between said arm member and said container top on the upper side of said top to permit positioning of said segment away from said opening.
Claim 3
Dependent Claim 48 words
A container top as defined in claim 1 wherein said arm member comprises a polyamide and wherein said attachment means between said arm member and said segment is an integral rivet, and wherein said attachment means between said arm member and said container top is an integral rivet.
Claim 4
Dependent Claim 37 words
A container top as defined in claim 1 wherein said attachment means between said arm member and said container top is a pivoting structure to permit swiveling of said segment away from said opening after tear out.
Claim 5
Dependent Claim 22 words
A container top as defined in claim 3 wherein said attachment means between said arm member and said segment comprises a rivet.
Claim 6
Dependent Claim 26 words
A container top as defined in claim 3 wherein said pivoting structure providing attachment means between said arm member and said container top comprises a rivet.
Claim 7
Dependent Claim 18 words
A container top as defined in claim 3 wherein said arm member comprises a strip of flexible material.
Claim 8
Dependent Claim 15 words
A container top as defined in claim 3 wherein said arm member comprises a plastic.
Claim 9
Dependent Claim 15 words
A container top as defined in claim 3 wherein said arm member comprises a polyamide.
Claim 10
Dependent Claim 16 words
A container top as defined in claim 3 wherein said arm member is made of polypropylene.
Claim 11
Dependent Claim 16 words
A container top as defined in claim 1 wherein said arm member is made of aluminum.
Claim 12
Dependent Claim 38 words
A container top as defined in claim 3 wherein said segment has stiffening means for adding rigidity thereto to decrease the amount of curvature formed in said segment during removal from said container top to form an opening.
Claim 13
Dependent Claim 52 words
A container top as defined in claim 11 wherein said stiffening means comprises an elongated formation in the material of said segment extending in the direction of tear out, and said formation having a cross section which is off-set relative to the plane of said container top to provide said stiffening effect.
Claim 14
Dependent Claim 28 words
A container top as defined in claim 12 wherein there is a plurality of said elongated formations in the material of said segment to provide a stiffening effect.
Claim 15
Dependent Claim 35 words
A container top as defined in claim 1 wherein a depression is provided in said container top outward of said openable area and into which said segment may be at least partially lowered after opening.
Claim 16
Dependent Claim 96 words
A container top as defined in claim 1 wherein there is an elongated formation in the material of said segment having a cross section which is off-set relative to the plane of said container top, and which is positioned near said tab securement means and extending alongside said securement means, and extending beyond in the general direction of the tear out of said segment, and said elongated formation serving to provide added resistance against sharp bending in the material of said segment in the region near said tab securement means during opening of said container top.
Claim 17
Dependent Claim 93 words
A container top as defined in claim 1 wherein there is an upstanding rib formation in the material of said segment and located in the region of said segment which is remote from said tab securement means, and said rib extending across said score line and extending into the material of said top outward of said segment, and with the groove of said score line following around the ridge-like contour of the surface of said rib, and said rib assisting in the rupture along the score line at opening of said container top.
Claim 18
Dependent Claim 74 words
A container top as defined in claim 1 wherein said score line defining said segment comprises a groove in the upper side of said container top, and wherein there is also a section of groove causing thinning of the material of said container top and positioned in the under side of said top and along a part of the periphery of said segment, and with the upper and under side grooves in substantial alignment.

References Cited (Backward Citations)

US3731836A Cited
US3813000A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-09-29 1979-03-31 1979-09-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-09-29 1983-03-31 1983-09-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-09-29 1987-03-31 1987-09-30 $7700.00 Window Closed / Lapsed

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