US3109661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low torque rotary seal
Assignee: Individual
•
Filing: 1962-01-10
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Granted: 1963-11-05
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Expires: 1982-01-10
Abstract
No abstract record available.
Inventors
- 👤 Frank H Swaim
- 👤 David W Rabenhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:29
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/44; F16J15/441; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A SEAL ASSEMBLY COMPRISING, IN COMBINATION, AN OUTER HOLLOW CYLINDRICAL MEMBER, AN INNER CYLINDRICAL MEMBER DISPOSED CONCENTRICALLY WITHIN SAID OUTER MEMBER AND HAVING AN ANNULAR GROOVE THEREIN, AN ANNULAR SEALING RING RECEIVED IN SAID GROOVE, SAID SEALING RING HAVING THEREON A FIRST RAISED LAND POSITIONED TO ENGAGE SAID OUTER MEMBER AND A SECOND RAISED LAND POSITIONED TO ENGAGE ONE OF THE WALLS DEFINING SAID GROOVE, RESILIENT MEANS DISPOSED WITHIN SAID GROOVE AND IN ENGAGEMENT WITH SAID SEALING RING FOR URGING THE OUTER SURFACES OF SAID LANDS INTO SEALING ENGAGEMENT WITH THEIR RESPECTIVE MATING SURFACES, SAID RESILIENT MEANS AND SAID SEALING RING DIVIDING THE INNER CYLINDRICAL MEMBER INTO UPPER AND LOWER CHAMBERS, AND BORE MEANS IN SAID SEALING RING POSITIONED TO ALLOW FLUID FLOWING BETWEEN SAID TWO MEMBERS AND INTO SAID CHAMBERS TO SUBSTANTIALLY SURROUND ALL OF SAID SEALING RING EXCEPT THE SEALING SURFACES ON SAID LANDS.
Claim 2
Dependent Claim
146 words
A SEAL ASSEMBLY COMPRISING, IN COMBINATION, AN OUTER HOLLOW CYLINDRICAL MEMBER, AN INNER CYLINDRICAL MEMBER DISPOSED CONCENTRICALLY WITHIN SAID OUTER MEMBER AND HAVING AN ANNULAR GROOVE THEREIN, AN ANNULAR SEALING RING RECEIVED IN SAID GROOVE, SAID SEALING RING HAVING THEREON A FIRST RAISED LAND POSITIONED TO ENGAGE SAID OUTER MEMBER AND A SECOND RAISED LAND POSITIONED TO ENGAGE ONE OF THE WALLS DEFINING SAID GROOVE, RESILIENT MEANS DISPOSED WITHIN SAID GROOVE AND IN ENGAGEMENT WITH SAID SEALING RING FOR URGING THE OUTER SURFACES OF SAID LANDS INTO SEALING ENGAGEMENT WITH THEIR RESPECTIVE MATING SURFACES, SAID RESILIENT MEANS AND SAID SEALING RING DIVIDING THE INNER CYLINDRICAL MEMBER INTO UPPER AND LOWER CHAMBERS, AND BORE MEANS IN SAID SEALING RING POSITIONED TO ALLOW FLUID FLOWING BETWEEN SAID TWO MEMBERS AND INTO SAID CHAMBERS TO SUBSTANTIALLY SURROUND ALL OF SAID SEALING RING EXCEPT THE SEALING SURFACES ON SAID LANDS.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |