US3650386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resealable container
Assignee: Dow Chemical Co
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Filing: 1969-08-19
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Granted: 1972-03-21
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Expires: 1989-08-19
Abstract
Abstract A resealable container including a hermetic seal joining together components of the container and which seal is so constructed that when broken, a pressure sensitive adhesive layer is exposed to provide a tacky surface for resealing purposes. Specifically, one of the components is a laminate. The seal causes a preferential separation of the plies of the laminated component with the adhesive layer being located at the interface of preferential separation.
Inventors
- 👤 Ruben A Tigner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; B65; B65D; B65D75/00; B65D75/26; B32B1/00; B32B5/00; B32B5/18; B32B7/00; B32B7/04; B32B7/12; B65D75/28; B65D75/30; B65D75/32; B65D75/321; B65D75/322; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0228; B32B2435/00; B32B2435/02; B32B2439/00; B32B2439/70; Y; Y10; Y10S; Y10S206/00; Y10S206/813
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
68 words
The package of claim 1 wherein said first component includes a mating means preformed therein and which extends peripherally continuous about said product, and wherein said second component includes a peripherally continuous mating means preformed therein and matingly fitted together with the preformed mating means of said first component, said seal extending along a peripherally continuous path joining together said components in the region of said mating means.
Claim 2
Dependent Claim
35 words
The package of claim 2 wherein said package includes first and second tab means associated with said first and second components respectively, and operable to conveniently separate said first and second components from each other.
Claim 3
Dependent Claim
24 words
The package of claim 2 wherein said container is hermetically tight, and wherein said product is stored within said container in a controlled environment.
Claim 4
Dependent Claim
43 words
The package of claim 1 wherein said second layer comprises polystyrene foam having a density in the range of between about 3 to about 12 lb. per cubic foot, and a thickness in the range of between about 10 to about 100 mils.
Claim 5
Dependent Claim
25 words
The package of claim 5 wherein said first layer comprises saran having a thickness in the range of between about 0.5 to about 2.5 mils.
Claim 6
Dependent Claim
29 words
The package of claim 1 wherein said first layer and the portions of said second component engaging said first layer are thermally compatible, said seal comprising a heat seal.
Claim 7
Dependent Claim
34 words
The package of claim 1 wherein said first layer is weakened in the vicinity of said seal to obtain the preferential tearing of said weakened portion from said first layer upon rupturing said seal.
Claim 8
Dependent Claim
15 words
The package of claim 8 wherein said weakening comprises a thinning of said first layer.
Claim 9
Dependent Claim
31 words
The package of claim 8 wherein said first layer is biaxially orientated film and said weakening comprises a loss of orientation of the first layer in the vicinity of said seal.
Claim 10
Dependent Claim
96 words
A container having product therewithin and comprising first and second preformed self-supporting components, said first component comprising a plurality of intimately joined layers including an intermediate layer of a pressure sensitive adhesive, a seal joining said components together, said seal and said first component being of a character such that when said components are separated, the portion of said first component in the vicinity of said seal and which exists between said adhesive layer and said second component, remains attached to the second component, thereby exposing a strategic area of said adhesive layer for resealing purposes.
Claim 11
Dependent Claim
72 words
The container of claim 11 wherein said first component includes therein preformed mating means which extend peripherally continuous about said product, and wherein said second component includes therein a peripherally continuous mating means mated together with the mating means of said first component, said seal being peripherally continuous about said product and being located along a path generally coincident with and joining together said mating means of said first and second components.
Claim 12
Dependent Claim
22 words
The container of claim 12 wherein said seal comprises a heat seal between adjacent thermoplastic surfaces of the first and second components.
Claim 13
Dependent Claim
27 words
The package of claim 13 wherein said container is hermetically tight about said product, and wherein said product is stored within said package in a controlled environment.
Claim 14
Dependent Claim
15 words
The package of claim 13 wherein said environment comprises a vacuum environment about said product.
Claim 15
Dependent Claim
37 words
The package of claim 13 wherein said portion of said first component in the vicinity of said weld is weakened due to the application of the heat and/or pressure applied thereto in the forming of said seal.
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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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |