Patent EP0738983A1 successfully refreshed from Google Patents.
US4793503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure with rupturable tamper disk
Assignee: TBL Development Corp
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Filing: 1982-12-17
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Granted: 1988-12-27
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Expires: 2002-12-17
Abstract
Abstract A container closure includes a closure member defining container closing expanse, a tamper-indicating element in the closure interiorly of the closure member and tines movable with the closure member for both retaining the tamper-indicating element with the closure and for selectively tearing the tamper-indicating element. The movable tines are inaccessible through the closing expanse of the closure member and the closure affords visibility therethrough of the condition of the tamper-indicating element. The tamper indicating element includes a compressible foam layer and the movable tines reside essentially in the foam layer.
Inventors
- 👤 Edward J. Towns
- 👤 Edward M. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:36
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D55/06; B65D55/066; Y; Y10; Y10S; Y10S206/00; Y10S206/807
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
132 words
A container closure having a closure member defining container closing expanse, means in said closure interiorly of said closure member for providing tamper indication and means dependent from said closure member and movable with said closure member for both retaining said tamper indication means with said closure and for selectively rupturing said tamper indication means, such movable means being inaccessible through said closing expanse of said closure member and said closure affording visibility exteriorly thereof of said tamper indication means, such tamper indication means including a compressible layer, said movable means having a first extent adjacent said closure member and a second extent distal from said closure member, said second closure member extent being enlarged with respect to said first closure member extent and being in retentive residence within said compressible layer.
Claim 2
Dependent Claim
132 words
A container closure having a closure member defining container closing expanse, means in said closure interiorly of said closure member for providing tamper indication and means dependent from said closure member and movable with said closure member for both retaining said tamper indication means with said closure and for selectively rupturing said tamper indication means, such movable means being inaccessible through said closing expanse of said closure member and said closure affording visibility exteriorly thereof of said tamper indication means, such tamper indication means including a compressible layer, said movable means having a first extent adjacent said closure member and a second extent distal from said closure member, said second closure member extent being enlarged with respect to said first closure member extent and being in retentive residence within said compressible layer.
Claim 3
Dependent Claim
20 words
The closure claimed in claim 1 wherein said movable means second extent has an end situate within said compressible layer.
Claim 4
Dependent Claim
39 words
The closure claimed in claim 2 wherein said tamper indication means comprises an assembly of said compressible layer and a further layer secured to one side of said compressible layer and intervening said closing expanse and said compressible layer.
Claim 5
Dependent Claim
33 words
The closure claimed in claim 3 wherein such tamper indication means assembly further includes a container access port sealing layer secured to the side of said compressible layer opposite said one side thereof.
Claim 6
Dependent Claim
30 words
The closure claimed in claim 2 wherein said tamper indication means comprises an assembly of said compressible layer and a container access port sealing layer secured to said compressible layer.
Claim 7
Dependent Claim
21 words
The closure claimed in claim 1 wherein said moveable means second extent has and end situate exteriorly of said compressible layer.
Claim 8
Dependent Claim
39 words
The closure claimed in claim 6 wherin said tamper indication means comprises an assembly of said compressible layer and a further layer secured to one side of said compressible layer and intervening said closing expanse and said compressible layer.
Claim 9
Dependent Claim
28 words
The closure claimed in claim 1 wherein said movable means comprises at least one retaining-rupturing member extending from said closure member into engagement with said tamper indication means.
Claim 10
Dependent Claim
39 words
The closure claimed in claim 8 wherein said closure member is adapted for rotative first and second movements of respectively opposite sense and wherein said retaining-rupturing member is radially offset from said center of such first and second movements.
Claim 11
Dependent Claim
16 words
The closure claimed in claim 8 wherein said retaining-rupturing member is integral with said closure member.
Claim 12
Dependent Claim
34 words
The closure claimed in claim 8 wherein said closure member is a hollow cylinder having an open end, said retaining-rupturing member extending generally parallel to the axis of said cylinder and radially offset therefrom.
Claim 13
Dependent Claim
20 words
The closure claimed in claim 1 wherein such movable means and such tamper indication means exhibit a mutual bond therebetween.
Claim 14
Dependent Claim
32 words
The closure claimed in claim 1 wherein such tamper indication means comprises a plastic foam layer and wherein said movable means is comprised of plastic material bondable to said foam layer plastic.
Claim 15
Independent Claim
130 words
A method of providing a tamper-indicating closure of type including a closure member for first sense movement relative to a container into securement therewith and in circumscribing relation to a container access opening and for second sense movement for release from such securement, said method comprising the steps of: (a) disposing a retaining member interiorly of said closure member and restraining said retaining member for travel with said closure member; (b) forming a secured assembly of a tamper-indicating element and a compressible layer; and (c) applying a backing member to said assembly and forcing said assembly into such closure member interior and onto said retaining member, said backing member being selected such that, in the resulting closure, the retaining member is deformed and thereby retentively captured by said compressible layer.
Claim 16
Independent Claim
130 words
A method of providing a tamper-indicating closure of type including a closure member for first sense movement relative to a container into securement therewith and in circumscribing relation to a container access opening and for second sense movement for release from such securement, said method comprising the steps of: (a) disposing a retaining member interiorly of said closure member and restraining said retaining member for travel with said closure member; (b) forming a secured assembly of a tamper-indicating element and a compressible layer; and (c) applying a backing member to said assembly and forcing said assembly into such closure member interior and onto said retaining member, said backing member being selected such that, in the resulting closure, the retaining member is deformed and thereby retentively captured by said compressible layer.
Claim 17
Dependent Claim
22 words
The method claimed in claim 14 wherein said step (a) is practice by forming said retaining member integrally with said closure member.
Claim 18
Dependent Claim
19 words
The method claimed in claim 14 wherein said step (b) is practiced by selecting foam for said compressible layer.
Claim 19
Independent Claim
139 words
A method of providing a tamper-indicating closure of type including a closure member for first sense movement relative to a container into securement therewith and in circumscribing relation to a container access opening and for second sense movement for release from such securement, said method comprising the steps of: (a) disposing a retaining member interiorly of said closure member and restraining said retaining member for travel with said closure member; (b) forming means for providing tamper-indication; and (c) applying such tamper-indicating means to be backing member therefor and forcing said backing member into such closure member interior thereby to place said tamper-indicating means onto said retaining member and deforming said retaining member, said backing member being selected such that, in the resulting closure, deformed extent of such retaining member is resident at least in part in said tamper-indicating means.
Claim 20
Independent Claim
139 words
A method of providing a tamper-indicating closure of type including a closure member for first sense movement relative to a container into securement therewith and in circumscribing relation to a container access opening and for second sense movement for release from such securement, said method comprising the steps of: (a) disposing a retaining member interiorly of said closure member and restraining said retaining member for travel with said closure member; (b) forming means for providing tamper-indication; and (c) applying such tamper-indicating means to be backing member therefor and forcing said backing member into such closure member interior thereby to place said tamper-indicating means onto said retaining member and deforming said retaining member, said backing member being selected such that, in the resulting closure, deformed extent of such retaining member is resident at least in part in said tamper-indicating means.
Claim 21
Dependent Claim
54 words
The method claimed in claim 17 wherein said step (c) is practiced in part by selecting said backing member to include a rigid end portion by applying said tamper-indicating means to a flat end surface of said end portion and displacing said end portion into said closure member interior axially of said closure member.
Claim 22
Dependent Claim
26 words
The method claimed in claim 18 wherein said retaining member is configured to have preferential directional deformation in the course of practice of said step (c).
Claim 23
Dependent Claim
54 words
The method claimed in claim 17 wherein said step (c) is practiced in part by selecting said backing member to include a resilient end portion, by applying said tamper-indicating means to a flat surface of said end portion and by displacing said end portion into said closure member interior axially or said closure member.
Claim 24
Dependent Claim
26 words
The method claimed in claim 20 wherein said retaining member is configured to have preferential directional deformation in the course of practice of said step (c).
Claim 25
Dependent Claim
116 words
A container closure having a closure member defining container closing expanse, rupturing and tearing means secured within said closure member and moveable therewith, and a tamper-indicator comprising a first layer for receiving and retaining said rupturing and tearing means and a second layer of container access port sealing character having a surface thereof secured to said first layer, said second layer being adapted to deform said rupturing and tearing means, to effect such residence of said rupturing and tearing means in said first layer and to retain second layer sealing integrity upon said residence of said rupturing and tearing means in said indicator, said second layer including means on said surface thereof for providing tamper indication.
Claim 26
Dependent Claim
116 words
A container closure having a closure member defining container closing expanse, rupturing and tearing means secured within said closure member and moveable therewith, and a tamper-indicator comprising a first layer for receiving and retaining said rupturing and tearing means and a second layer of container access port sealing character having a surface thereof secured to said first layer, said second layer being adapted to deform said rupturing and tearing means, to effect such residence of said rupturing and tearing means in said first layer and to retain second layer sealing integrity upon said residence of said rupturing and tearing means in said indicator, said second layer including means on said surface thereof for providing tamper indication.
Claim 27
Dependent Claim
99 words
A container closure for first and second opposite sense movements with respect to a container and having a closure member defining container closing expanse, a multilayer assembly in said closure including a first layer and a second layer, said second layer being secured to said first layer and being of container access port sealing character, and rupturing means for movement with said closure member and for retaining said multilayer assembly with said closure, said rupturing means having asymmetric expanses in said first layer extending respectively in the directions of said first and second opposite sense movements of said closure.
Claim 28
Dependent Claim
99 words
A container closure for first and second opposite sense movements with respect to a container and having a closure member defining container closing expanse, a multilayer assembly in said closure including a first layer and a second layer, said second layer being secured to said first layer and being of container access port sealing character, and rupturing means for movement with said closure member and for retaining said multilayer assembly with said closure, said rupturing means having asymmetric expanses in said first layer extending respectively in the directions of said first and second opposite sense movements of said closure.
Claim 29
Dependent Claim
55 words
The closure claimed in claim 23 wherein said first layer has one surface adjacent said closure member container closing expanse and a second surface secured to said second layer, said asymmetric expanses of said rupturing means being adjacent said second surface of said first layer and spaced from said first surface of said first layer.
Claim 30
Dependent Claim
18 words
The closure claimed in claim 24 wherein said rupturing means is of boot-like configuration within said first layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-27 | 1992-06-27 | 1992-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-27 | 1996-06-27 | 1996-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-27 | 2000-06-27 | 2000-12-27 | $7700.00 | Window Closed / Lapsed |