US3557988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure assembly
Assignee: Alcoa Corp
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Filing: 1969-04-21
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Granted: 1971-01-26
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Expires: 1989-04-21
Abstract
Abstract An outer closure member having a top panel and depending skirt portion. An inner closure member composed of a different material having an annular vertical wall disposed within the outer closure member and a radially outwardly directed flange integrally formed with the lower marginal edge of the annular vertical wall. An upstanding wall segment on the flange cooperating the flange and the annular vertical wall to define an upwardly open channel. The marginal end of the outer member skirt portion resiliently retained within the channel to prevent accidental relative separation of the outer and inner members but permitting intentional mechanical separation. The outer closure member may be a metal closure having an integral opening device and the inner closure member may be a molded resilient plastic material and adapted to serve both as a gasket and reclosure.
Inventors
- 👤 Glenn O Tribe
- 👤 Walter C Riesen Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:19
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/18; B65D41/00; B65D41/32; B65D41/40; B65D41/42; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0015; B65D2251/0068; B65D2251/0078
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
In combination: an outer closure member having a top panel and an annular depending skirt portion; an a inner closure member composed of a different material than said outer member having an annular vertical wall disposed within said outer closure member and a radially outwardly directed flange formed integrally with the lower marginal edge of said annular vertical wall; an upstanding wall segment extending upwardly from said flange portion at a position spaced radially outwardly from said annular vertical wall; said upstanding wall segment cooperating with said flange and said annular vertical wall to define an upwardly open channel, and the lower marginal end of said outer member secured in resilient demountable engagement within said channel, whereby relative separation of said outer and inner closure members during handling is resisted, while permitting manual separation during removal of the closure from a container.
Claim 2
Dependent Claim
142 words
In combination: an outer closure member having a top panel and an annular depending skirt portion; an a inner closure member composed of a different material than said outer member having an annular vertical wall disposed within said outer closure member and a radially outwardly directed flange formed integrally with the lower marginal edge of said annular vertical wall; an upstanding wall segment extending upwardly from said flange portion at a position spaced radially outwardly from said annular vertical wall; said upstanding wall segment cooperating with said flange and said annular vertical wall to define an upwardly open channel, and the lower marginal end of said outer member secured in resilient demountable engagement within said channel, whereby relative separation of said outer and inner closure members during handling is resisted, while permitting manual separation during removal of the closure from a container.
Claim 3
Dependent Claim
88 words
The combination of claim 1 wherein: said outer closure member is composed of metal and has an integral opening device; said inner closure member is composed of a plastic material and has a continuous top panel integrally connected to the upper portion of said annular vertical wall; and said continuous top panel disposed in underlying relationship with respect to said top panel of said metal outer closure, whereby upon removal of the closure from a container, the metal outer closure may be separated from the inner closure member.
Claim 4
Dependent Claim
58 words
The combination of claim 2 wherein: said lower marginal edge of said outer closure member has a hollow bead; said upstanding wall segment of said outwardly directed flange has an upwardly and inwardly directed upper portion which provides a narrowed throat opening to said channel; and said hollow bead is seated within said channel below said throat opening.
Claim 5
Dependent Claim
65 words
The combination of claim 2 wherein: said inner closure member is composed of a resilient plastic material suitable for use as a sealing gasket while the closure is affixed to a container; and said outwardly directed flange of said inner closure member extending radially outwardly beyond said integral channel to provide an engageable extension for facilitating removal of said inner closure member from a container.
Claim 6
Dependent Claim
46 words
The combination of claim 4 wherein: said annular vertical wall of said inner closure member terminates in a downwardly and radially outwardly directed transition section which merges into said outwardly directed flange; and said flange has a substantially flat bottom surface which is substantially horizontally disposed.
Claim 7
Dependent Claim
37 words
The combination of claim 5, wherein: said flange has a substantially flat vertical face at its radially outward edge; and a portion of the top surface of said flange intermediate said upstanding wall segment being substantially flat.
Claim 8
Dependent Claim
59 words
The cOmbination of claim 6 wherein: said outer closure member is made of aluminum; said inner closure member is a unitary molded structure made of low density polyethylene; and said annular vertical wall of said inner closure member is disposed in circumferentially continuous contact with at least a major portion of said depending skirt of said outer closure member.
Claim 9
Dependent Claim
25 words
The combination of claim 7 wherein said substantially flat bottom surface of said flange has a plurality of circumferentially spaced integrally formed downwardly directed bosses.
Claim 10
Dependent Claim
25 words
The combination of claim 7 wherein said substantially flat bottom surface of said flange has a plurality of circumferentially spaced upwardly directed recesses formed therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |