US3357412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing arrangement
Assignee: Individual
•
Filing: 1966-05-20
•
Granted: 1967-12-12
•
Expires: 1986-05-20
Abstract
No abstract record available.
Inventors
- 👤 Sabet Huschang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
F; F01; F01C; F01C19/00; F01C19/08; F01C19/10; F16; F16J; F16J15/00; F16J15/16; F16J15/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN COMBINATION WITH A PISTON ENGINE HAVING A FIRST ENGINE PART PROVIDED WITH A GROOVE, AND A SECOND ENGINE PART DISPOSED WITH ONE SURFACE ADJACENT SAID GROOVE AND ARRANGED TO ROTATE WITH RESPECT TO SAID FIRST ENGINE PART, SEALING MEANS COMPRISING: (A) A SPLIT SEALING RING DISPOSED IN SAID GROOVE AND HAVING A SUBSTANTIALLY TRAPEZOIDAL CROSS SECTION DEFINED BY A WIDE BASE FACING SAID ONE SURFACE OF SAID SECOND PART, A NARROW BASE FACING THE BOTTOM OF SAID GROOVE, AND A SLOPING, RADIALLY INWARDLY FACING FLANK; AND (B) A PRESSURE RING DISPOSED IN SAID GROOVE RADIALLY INWARDLY OF SAID SEALING RING AND HAVING A SLOPING, RADIALLY OUTWARDLY FACING FLANK WHICH EXTENDS SUB-
Claim 2
Dependent Claim
112 words
IN COMBINATION WITH A PISTON ENGINE HAVING A FIRST ENGINE PART PROVIDED WITH A GROOVE, AND A SECOND ENGINE PART DISPOSED WITH ONE SURFACE ADJACENT SAID GROOVE AND ARRANGED TO ROTATE WITH RESPECT TO SAID FIRST ENGINE PART, SEALING MEANS COMPRISING: (A) A SPLIT SEALING RING DISPOSED IN SAID GROOVE AND HAVING A SUBSTANTIALLY TRAPEZOIDAL CROSS SECTION DEFINED BY A WIDE BASE FACING SAID ONE SURFACE OF SAID SECOND PART, A NARROW BASE FACING THE BOTTOM OF SAID GROOVE, AND A SLOPING, RADIALLY INWARDLY FACING FLANK; AND (B) A PRESSURE RING DISPOSED IN SAID GROOVE RADIALLY INWARDLY OF SAID SEALING RING AND HAVING A SLOPING, RADIALLY OUTWARDLY FACING FLANK WHICH EXTENDS SUB-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |