US4311247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass container and thermoplastic closure combination
Assignee: OI Glass Inc
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Filing: 1980-11-25
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Granted: 1982-01-19
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Expires: 2000-11-25
Abstract
Abstract A glass container having an upper rim for dispensing the contents thereof and a sealing membrane adapted to be applied to said rim to seal the contents of the container. The sealing surface of the container is prepared by treatment with fluorine and a metal oxide, or a sulfur oxide and a metal oxide, or with fluorine alone or a sulfur oxide alone, at an elevated temperature. To form the closure a membrane comprising a thermoplastic film is applied over the sealing surface and heated to result in a glass/plastic adhesion. The membrane may be a thermoplastic polymer/aluminum foil laminate.
Inventors
- 👤 Michael T. Dembicki
- 👤 William J. Poad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:06
CPC Classifications
C; C03; C03C; C03C23/00; B; B65; B65D; B65D51/00; B65D51/18; B65D51/20; B67; B67B; B67B5/00; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0015; B65D2251/0068; B65D2251/0093; C03C2218/00; C03C2218/30; C03C2218/31; C03C2218/355; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/131; Y10T428/24; Y10T428/24802; Y10T428/24843
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
66 words
In combination, a glass container having a mouth comprising an upper rim with a sealing membrane comprising a thermoplastic material, said glass container rim having been heated to an elevated temperature and treated with a fluorine compound decomposable at said elevated temperature and said membrane being pressed against said rim at a temperature above the softening point but below the melting point of said thermoplastic material.
Claim 2
Dependent Claim
66 words
In combination, a glass container having a mouth comprising an upper rim with a sealing membrane comprising a thermoplastic material, said glass container rim having been heated to an elevated temperature and treated with a fluorine compound decomposable at said elevated temperature and said membrane being pressed against said rim at a temperature above the softening point but below the melting point of said thermoplastic material.
Claim 3
Dependent Claim
32 words
The combination of claim 1 wherein said membrane comprises a thermoplastic film adhesively joined on one face to a thin sheet or foil selected from the group consisting of metal and paper.
Claim 4
Dependent Claim
27 words
The combination of claim 2 wherein the rim of the container has been treated with a metal oxide precursor forming a metal oxide at said elevated temperature.
Claim 5
Dependent Claim
26 words
The combination of claim 3 wherein the container mouth has been heated to a range of from 800° F. to 1200° F. during said precursor treatment.
Claim 6
Dependent Claim
39 words
The combination of claim 3 wherein said metal oxide precursor is a metal organic compound of chromium, tin, or titanium applied to the glass surface in liquid form at a temperature ranging from about 100° F. to 300° F.
Claim 7
Dependent Claim
14 words
The combination according to claim 1 wherein the glass container is a soda-lime-silica glass.
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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) | 1985-01-18 | 1985-07-20 | 1986-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-18 | 1989-07-20 | 1990-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-18 | 1993-07-20 | 1994-01-19 | $7700.00 | Window Closed / Lapsed |