US3099456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread forming sparkplug gaskets
Assignee: Individual
•
Filing: 1960-08-01
•
Granted: 1963-07-30
•
Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Harold P Hopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:19
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0887; H; H01; H01T; H01T13/00; H01T13/02; H01T13/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN COMBINATION, A SPARK PLUG HAVING A THREADED SHANK, AND A COMPRESSIBLE ANNULAR GASKET HAVING A PRINCIPAL AXIS OF COMPRESSION; SAID GASKET INCLUDING A PLURALITY OF UNDULATING SEALING PORTIONS, AND AN INNER FLANGE HAVING AT LEAST ONE RADIALLY ARRANGED SLOT THEREIN FORMING A SEGMENTED INNER EDGE, SAID INNER FLANGE DISPOSED IN ANGULAR CONTACT RELATION WITH RESPECT TO SAID AXIS OF COMPRESSION, SO THAT OPPOSITE SIDES OF SAID INNER FLANGE ARE IN DEFORMABLE CONTACTING ENGAGEMENT WITH OPPOSED SURFACES, SAID INNER EDGE HAVING A DIAMETER WHICH IS SUBSTANTIALLY GREATER THAN THE MAJOR DIAMETER OF SAID THREADED SHANK WHEN SAID GASKET IS IN A RELATIVELY UNCOMPRESSED STATE, AND SUBSTANTIALLY LESS THAN SAID MAJOR DIAMETER WHEN IN RELATIVELY COMPRESSED STATE; WHEREBY SAID GASKET MAY BE SLIPPED UPON SAID SHANK OF SAID SPARK PLUG WITH A PURELY TRANSLATIONAL MOTION AND MAY BECOME THREADEDLY AFFIXED TO SAID SHANK UPON THE INSTALLATION AND TIGHTENING OF SAID SPARK PLUG WHEREIN SAID GASKET IS COMPRESSED.
Claim 2
Dependent Claim
156 words
IN COMBINATION, A SPARK PLUG HAVING A THREADED SHANK, AND A COMPRESSIBLE ANNULAR GASKET HAVING A PRINCIPAL AXIS OF COMPRESSION; SAID GASKET INCLUDING A PLURALITY OF UNDULATING SEALING PORTIONS, AND AN INNER FLANGE HAVING AT LEAST ONE RADIALLY ARRANGED SLOT THEREIN FORMING A SEGMENTED INNER EDGE, SAID INNER FLANGE DISPOSED IN ANGULAR CONTACT RELATION WITH RESPECT TO SAID AXIS OF COMPRESSION, SO THAT OPPOSITE SIDES OF SAID INNER FLANGE ARE IN DEFORMABLE CONTACTING ENGAGEMENT WITH OPPOSED SURFACES, SAID INNER EDGE HAVING A DIAMETER WHICH IS SUBSTANTIALLY GREATER THAN THE MAJOR DIAMETER OF SAID THREADED SHANK WHEN SAID GASKET IS IN A RELATIVELY UNCOMPRESSED STATE, AND SUBSTANTIALLY LESS THAN SAID MAJOR DIAMETER WHEN IN RELATIVELY COMPRESSED STATE; WHEREBY SAID GASKET MAY BE SLIPPED UPON SAID SHANK OF SAID SPARK PLUG WITH A PURELY TRANSLATIONAL MOTION AND MAY BECOME THREADEDLY AFFIXED TO SAID SHANK UPON THE INSTALLATION AND TIGHTENING OF SAID SPARK PLUG WHEREIN SAID GASKET IS COMPRESSED.
References Cited (Backward Citations)
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Cited
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Cited
US1685059A
Cited
GB431097A
Cited
US2941105A
Cited
GB761771A
Cited
US3029084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |