US3147983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft and piston seal
Assignee: Northern Ordnance Inc
•
Filing: 1960-06-03
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Granted: 1964-09-08
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Expires: 1980-06-03
Abstract
No abstract record available.
Inventors
- 👤 Milton C Neuman
- 👤 Kenneth A Riach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:35
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3208; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN COMBINATION, A HOUSING HAVING A WALL DEFINING AN OPENING EXTENDING THEREIN, A MEMBER ARRANGED FOR MOVEMENT IN SAID OPENING, AND A SEALING ASSEMBLY LOCATED BETWEEN SAID MOVABLE MEMBER AND THE WALL OF SAID OPENING OF SAID HOUSING FOR SEALING SAID OPENING SO AS TO PREVENT LEAKAGE OF A MEDIUM THERETHROUGH UPON MOVEMENT OF SAID MEMBER, SAID ASSEMBLY CONSISTING OF AN ANNULAR RESILIENT RING POSITIONED IN SAID HOUSING, AND AN ANNULAR SEMI-RESILIENT ELONGATED SHAPED SEAL HAVING A FLANGED END FOR LOCKING IN SAID HOUSING AND ITS OTHER END LOCATED ADJACENT AND IN ENGAGEMENT WITH SAID ANNULAR RING WITH THE POINT OF PRESSURE FROM SAID ANNULAR RESILIENT RING BEING POSITIONED AT A POINT AXIALLY REMOTE FROM SAID FLANGED END OF SAID SEMI-RESILIENT SEAL, AT SAID OTHER END THEREOF, SAID SEAL BEING LOCATED BETWEEN THE SURFACE OF SAID OPENING IN SAID HOUSING AND THE SURFACE OF SAID MOVABLE MEMBER, WHEREBY WHEN SAID ANNULAR RING IS COMPRESSED, IT MOVES SAID OTHER END OF SAID SEAL MORE TIGHTLY AGAINST ONE OF SAID SURFACES.
Claim 2
Dependent Claim
169 words
IN COMBINATION, A HOUSING HAVING A WALL DEFINING AN OPENING EXTENDING THEREIN, A MEMBER ARRANGED FOR MOVEMENT IN SAID OPENING, AND A SEALING ASSEMBLY LOCATED BETWEEN SAID MOVABLE MEMBER AND THE WALL OF SAID OPENING OF SAID HOUSING FOR SEALING SAID OPENING SO AS TO PREVENT LEAKAGE OF A MEDIUM THERETHROUGH UPON MOVEMENT OF SAID MEMBER, SAID ASSEMBLY CONSISTING OF AN ANNULAR RESILIENT RING POSITIONED IN SAID HOUSING, AND AN ANNULAR SEMI-RESILIENT ELONGATED SHAPED SEAL HAVING A FLANGED END FOR LOCKING IN SAID HOUSING AND ITS OTHER END LOCATED ADJACENT AND IN ENGAGEMENT WITH SAID ANNULAR RING WITH THE POINT OF PRESSURE FROM SAID ANNULAR RESILIENT RING BEING POSITIONED AT A POINT AXIALLY REMOTE FROM SAID FLANGED END OF SAID SEMI-RESILIENT SEAL, AT SAID OTHER END THEREOF, SAID SEAL BEING LOCATED BETWEEN THE SURFACE OF SAID OPENING IN SAID HOUSING AND THE SURFACE OF SAID MOVABLE MEMBER, WHEREBY WHEN SAID ANNULAR RING IS COMPRESSED, IT MOVES SAID OTHER END OF SAID SEAL MORE TIGHTLY AGAINST ONE OF SAID SURFACES.
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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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |