Patent US452237A successfully refreshed from Google Patents.
US4603786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press-on closure for resealable glass finish
Assignee: Continental White Cap Inc
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Filing: 1985-04-02
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Granted: 1986-08-05
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Expires: 2005-04-02
Abstract
Abstract A closure of the press-on type which includes a shell having therein a liner which functions to both form a seal with a container neck finish and also to form in the closure threads which are complementary to the threads of a container neck finish wherein although the closure is pressed on, it may be removed by rotating the same and further may be reapplied to have the same original tight seal. The closure is particularly identifiable by the properties and dimensions of the liner with the properties including a percent puff range and a hardness and the dimensions including certain critical dimensions as to liner thickness.
Inventors
- 👤 Frank H. Lecinski, Jr.
- 👤 William J. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:42
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/0457
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
140 words
A resealable press-on closure for containers of the type having a neck finish including threads, said closure comprising a shell including an end panel and a depending skirt, and a plastisol compound liner extending a major portion of said skirt and at least partially across said end panel, said liner including an end seal portion and a thread forming portion, said closure being improved by said plastisol compound being a closed cell foam structure having a related percent puff range and hardness ratio wherein when said closure is applied a thread impression will be formed in the said compound thread forming portion wherein a resultant opening torque will be equal to or less than a reapplication strip torque, said percent puff ranging between 50 and 80%, and said hardness having a Shore "A" hardness range of between 50 and 70.
Claim 2
Dependent Claim
140 words
A resealable press-on closure for containers of the type having a neck finish including threads, said closure comprising a shell including an end panel and a depending skirt, and a plastisol compound liner extending a major portion of said skirt and at least partially across said end panel, said liner including an end seal portion and a thread forming portion, said closure being improved by said plastisol compound being a closed cell foam structure having a related percent puff range and hardness ratio wherein when said closure is applied a thread impression will be formed in the said compound thread forming portion wherein a resultant opening torque will be equal to or less than a reapplication strip torque, said percent puff ranging between 50 and 80%, and said hardness having a Shore "A" hardness range of between 50 and 70.
Claim 3
Dependent Claim
16 words
A closure according to claim 1 wherein said percent puff is on the order of 65%.
Claim 4
Dependent Claim
17 words
A closure according to claim 2 wherein said Shore "A" hardness is on the order of 60.
Claim 5
Dependent Claim
17 words
A closure according to claim 1 wherein said Shore "A" hardness is on the order of 60.
Claim 6
Dependent Claim
27 words
A closure according to claim 1 wherein the thickness of said compound in an upper part of said thread forming portion ranges between 0.030 and 0.070 inch.
Claim 7
Dependent Claim
27 words
A closure according to claim 1 wherein the thickness of said compound in a lower part of said thread forming portion ranges between 0.007 and 0.040 inch.
Claim 8
Dependent Claim
47 words
A closure according to claim 1 wherein the thickness of said compound in an upper part of said thread forming portion ranges between 0.030 and 0.070 inch when taken at a radially inwardly and axially downwardly sloping angle of 25° to a center axis of said closure.
Claim 9
Dependent Claim
68 words
A closure according to claim 1 wherein the thickness of said compound in a lower part of said thread forming portion ranges between 0.007 and 0.040 inch and the thickness of said compound in an upper part of said thread forming portion ranges between 0.030 and 0.070 inch when taken at a radially inwardly and axially downwardly sloping angle of 25° to a center axis of said closure.
Claim 10
Dependent Claim
48 words
A closure according to claim 1 wherein the thickness of said compound in an upper part of said thread forming portion ranges between 0.030 and 0.070 inch and the thickness of said compound in a lower part of said thread forming portion ranges between 0.007 and 0.040 inch.
Claim 11
Dependent Claim
68 words
A closure according to claim 1 wherein the thickness of said compound in an upper part of said thread forming portion ranges between 0.030 and 0.070 inch and the thickness of said compound in a lower part of said thread forming portion ranges between 0.007 and 0.040 inch when taken at a radially inwardly and axially downwardly sloping angle of 25° to a center axis of said closure.
Claim 12
Dependent Claim
83 words
A resealable press-on closure for containers of the type having a neck finish including threads, said closure comprising a shell including an end panel and a depending skirt, and a plastisol compound liner extending a major portion of said skirt and at least partially across said end panel, said liner including an end seal portion and a thread forming portion, said closure being improved by said plastisol compound being a closed cell foam structure having a puff percent range of 50 to 80%.
Claim 13
Dependent Claim
83 words
A resealable press-on closure for containers of the type having a neck finish including threads, said closure comprising a shell including an end panel and a depending skirt, and a plastisol compound liner extending a major portion of said skirt and at least partially across said end panel, said liner including an end seal portion and a thread forming portion, said closure being improved by said plastisol compound being a closed cell foam structure having a puff percent range of 50 to 80%.
Claim 14
Dependent Claim
17 words
A closure according to claim 11 wherein an optimum puff percent is on the order of 65%.
Claim 15
Dependent Claim
20 words
A closure according to claim 11 wherein said compound has a Shore "A" hardness range of between 50 and 70.
Claim 16
Dependent Claim
53 words
A closure according to claim 13 wherein said compound has a related percent puff range and hardness ratio wherein when said closure is applied a thread impression will be formed in the said compound thread forming portion wherein a resultant opening torque will be equal to or less than a reapplication strip torque.
Claim 17
Dependent Claim
17 words
A closure according to claim 13 wherein an optimum puff percent is on the order of 65%.
Claim 18
Dependent Claim
14 words
A closure according to claim 13 wherein an optimum hardness is 60 Shore "A".
Claim 19
Dependent Claim
85 words
A resealable press-on closure for containers of the type having a neck finish including threads, said closure comprising a shell including an end panel and a depending skirt, and a plastisol compound liner extending a major portion of said skirt and at least partially across said end panel, said liner including an end seal portion and a thread forming portion, said closure being improved by said plastisol compound being a closed cell foam structure having a Shore "A" hardness range of between 50 and 70.
Claim 20
Dependent Claim
85 words
A resealable press-on closure for containers of the type having a neck finish including threads, said closure comprising a shell including an end panel and a depending skirt, and a plastisol compound liner extending a major portion of said skirt and at least partially across said end panel, said liner including an end seal portion and a thread forming portion, said closure being improved by said plastisol compound being a closed cell foam structure having a Shore "A" hardness range of between 50 and 70.
Claim 21
Dependent Claim
14 words
A closure according to claim 17 wherein an optimum hardness is 60 Shore "A".
References Cited (Backward Citations)
US3690497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |