US3077638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a sealing gasket
Assignee: Westinghouse Electric Corp
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Filing: 1959-07-22
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Granted: 1963-02-19
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Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 William M Hickam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:12
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/021; B29C43/027; B29C43/18; B29C70/00; B29C70/68; B29C70/78; B29D; B29D99/00; B29D99/0053; F; F16; F16J; F16J15/00; F16J15/02; F16J15/14; B29C37/00; B29C37/0092; B29K; B29K2027/00; B29K2027/12; B29K2105/00; B29K2105/0058; B29K2105/007; B29K2105/25; B29K2105/251; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10S; Y10S277/00; Y10S277/913; Y10S285/00; Y10S285/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
THE METHOD OF FORMING A RELATIVELY THIN GAS OR VACUUM TIGHT GASKET BETWEEN RELATIVELY EXTENSIVE CONTiGUOUS SURFACES OF A FLANGE TYPE COUPLING INCLUDING THE STEPS OF: COATING ONE OF THE RELATIVELY EXTENSIVE FLANGE SURFACE WITH A FLUID PASTE OF A FLUOROCARBON POLYMER MATERIAL OF A GRANULAR CONSISTENCY, POSITIONING THE SECOND COOPERATING RELATIVELY EXTENSIVE SURFACE INTO ENGAGEMENT WITH SAID FIRST COATED RELATIVELY EXTENSIVE FLANGE SURFACE, APPLYING COMPRESSIVE FORCE ACROSS THE TWO AFORESAID RELATIVELY EXTENSIVE FLANGE SURFACE SUBSTANTIALLY PERPENDICULARLY THERETO MOLD SAID GASKETING MATERIAL INTO A UNITARY GASKET SUBSTANTIALLY CONFORMING TO THE IRREGULARITIES OF SAID TWO RELATIVELY EXTENSIVE SURFACE AND HAVING A THICKNESS NOT GREATER THAN 0.60 INCH, AND DRYING SAID FLUID PASTE TO REMOVE THE FLUID COMPONENT OF SAID PASTE.
Claim 2
Independent Claim
119 words
THE METHOD OF FORMING A RELATIVELY THIN GAS OR VACUUM TIGHT GASKET BETWEEN RELATIVELY EXTENSIVE CONTiGUOUS SURFACES OF A FLANGE TYPE COUPLING INCLUDING THE STEPS OF: COATING ONE OF THE RELATIVELY EXTENSIVE FLANGE SURFACE WITH A FLUID PASTE OF A FLUOROCARBON POLYMER MATERIAL OF A GRANULAR CONSISTENCY, POSITIONING THE SECOND COOPERATING RELATIVELY EXTENSIVE SURFACE INTO ENGAGEMENT WITH SAID FIRST COATED RELATIVELY EXTENSIVE FLANGE SURFACE, APPLYING COMPRESSIVE FORCE ACROSS THE TWO AFORESAID RELATIVELY EXTENSIVE FLANGE SURFACE SUBSTANTIALLY PERPENDICULARLY THERETO MOLD SAID GASKETING MATERIAL INTO A UNITARY GASKET SUBSTANTIALLY CONFORMING TO THE IRREGULARITIES OF SAID TWO RELATIVELY EXTENSIVE SURFACE AND HAVING A THICKNESS NOT GREATER THAN 0.60 INCH, AND DRYING SAID FLUID PASTE TO REMOVE THE FLUID COMPONENT OF SAID PASTE.
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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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |