US4572393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container with easy open type closure
Assignee: Snow Brand Milk Products Co Ltd
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Filing: 1985-02-25
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Granted: 1986-02-25
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Expires: 2005-02-25
Abstract
Abstract An easy open type closure for a container having a closure member made of at least a metallic foil sheet for being affixed together with a ring-shaped member to an edge of an opening of a container barrel body. A first pull-opening member is provided having a first pulling tab connected to an initial end portion thereof and being connected to an upper surface of the closure member more firmly than a tearing strength of the closure member. A second pull-opening member is provided having a second pulling tab connected to an initial end portion thereof and being connected to an upper surface of the closure member more firmly than a tearing strength of the closure member. The first pull-opening member is formed of a strip member that extends in an annular form along an inner edge of the ring-shaped member and includes a final end portion directed towards the first pulling tab. The second pull opening member is formed of a strip member that extends in an annular form along an inner side edge of the first pull-opening member and includes a final end portion directed towards the first initial end portion thereof. In this manner, the closure may be partially opened or fully opened by using either the first pull-opening or the second pull-opening.
Inventors
- 👤 Koji Kobayashi
- 👤 Keisuke Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:29
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
190 words
An easy open type closure for a container comprising: a closure member made of at least a metallic foil sheet for being affixed together with a ring-shaped member to an edge of an opening of a container barrel body; and a first pull-opening member having a first pulling tab connected to an initial end portion thereof and being connected to an upper surface of the closure member more firmly than a tearing strength of the closure member; a second pull-opening member having a second pulling tab connected to an initial end portion thereof and being connected to an upper surface of the closure member more firmly than a tearing strength of the closure member; said first pull-opening member being formed of a strip member extending in an annular form along an inner edge of the ring-shaped member and includes a final end portion directed towards the first pulling tab; said second pull opening member being formed of a strip member that extends in an annular form along an inner side edge of the first pull-opening member and includes a final end portion directed towards the first initial end portion thereof.
Claim 2
Dependent Claim
190 words
An easy open type closure for a container comprising: a closure member made of at least a metallic foil sheet for being affixed together with a ring-shaped member to an edge of an opening of a container barrel body; and a first pull-opening member having a first pulling tab connected to an initial end portion thereof and being connected to an upper surface of the closure member more firmly than a tearing strength of the closure member; a second pull-opening member having a second pulling tab connected to an initial end portion thereof and being connected to an upper surface of the closure member more firmly than a tearing strength of the closure member; said first pull-opening member being formed of a strip member extending in an annular form along an inner edge of the ring-shaped member and includes a final end portion directed towards the first pulling tab; said second pull opening member being formed of a strip member that extends in an annular form along an inner side edge of the first pull-opening member and includes a final end portion directed towards the first initial end portion thereof.
Claim 3
Dependent Claim
42 words
A closure according to claim 1, wherein the position of the first pulling tab and that of the final end portion of the first pull-opening member are set so as to be adjacent to a middle portion of the second pull-opening member.
Claim 4
Dependent Claim
41 words
A closure according to claim 1, wherein the first pulling tab of the first pull-opening member is provided with a guide edge formed on the first pulling tab so as to be directed toward the inner edge of the ring-shaped member.
Claim 5
Dependent Claim
33 words
A closure according to claim 1, wherein respective middle portions of the first pull-opening member and the second pull-opening member are formed into straight line parts which are in parallel with one another.
Claim 6
Dependent Claim
93 words
A closure according to claim 1, wherein a third pull-opening member having a third pulling tab connected to an initial end portion is interposed between the inner side edge of the first pull-opening member and an outer side edge of the second pull-opening member and is connected to the upper surface of the closure member more firmly than the tearing strength of the closure member, said third pull-opening member being formed of a strip member that extends in an annular form and has a final end portion directed toward the third pulling tab.
Claim 7
Dependent Claim
52 words
A closure according to claim 5, wherein the position of the third pulling tab and that of the final end portion of the third pull-opening member are so set as to be adjacent to a middle portion of the first pull-opening member and to a middle portion of the second pull-opening member.
Claim 8
Dependent Claim
93 words
A closure according to claim 4, wherein a third pull-opening member having a third pulling tab connected to an initial end portion is interposed between the inner side edge of the first pull-opening member and an outer side edge of the second pull-opening member and is connected to the upper surface of the closure member more firmly than the tearing strength of the closure member, said third pull-opening member being formed of a strip member that extends in an annular form and has a final end portion directed toward the third pulling tab.
Claim 9
Dependent Claim
48 words
A closure according to claim 1, wherein the closure member is affixed to a rear surface of the ring-shaped member in order to close an opening of the ring-shaped member, and is fixed through the ring-shaped member to the edge of the opening of the container barrel body.
References Cited (Backward Citations)
US4256239A
Cited
US4434908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |