US3273906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating shaft seal
Assignee: Individual
•
Filing: 1963-08-15
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Granted: 1966-09-20
•
Expires: 1983-08-15
Abstract
No abstract record available.
Inventors
- 👤 James A Pennington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F16J15/406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN COMBINATION WITH A HOUSING FROM WHICH A SHAFT IS JOURNALED AND INCLUDING A BORE THROUGH WHICH SAID SHAFT PROJECTS, A SEAL ASSEMBLY FOR FORMING A SEAL BETWEEN SAID SHAFT AND THE PORTIONS OF SAID HOUSING DEFINING SAID BORE, SAID ASSEMBLY COMPRISING FIRST AND SECOND FORMS OF SEAL MEMBERS ENCIRCLING SAID SHAFT AND ALTERNATELY SPACED LONGITUDINALLY THEREOF, EACH OF SAID FIRST FORM OF SEAL MEMBERS BEING CARRIED BY SAID SHAFT FOR ROTATION THEREWITH AND DEFINING A DIAMETRIC ENLARGEMENT THEREOF AND EACH OF SAID SECOND FORM OF SEAL MEMBERS COMPRISING A GENERALLY CYLINDRICAL MEMBER STATIONARILY SECURED IN SAID
Claim 2
Dependent Claim
97 words
IN COMBINATION WITH A HOUSING FROM WHICH A SHAFT IS JOURNALED AND INCLUDING A BORE THROUGH WHICH SAID SHAFT PROJECTS, A SEAL ASSEMBLY FOR FORMING A SEAL BETWEEN SAID SHAFT AND THE PORTIONS OF SAID HOUSING DEFINING SAID BORE, SAID ASSEMBLY COMPRISING FIRST AND SECOND FORMS OF SEAL MEMBERS ENCIRCLING SAID SHAFT AND ALTERNATELY SPACED LONGITUDINALLY THEREOF, EACH OF SAID FIRST FORM OF SEAL MEMBERS BEING CARRIED BY SAID SHAFT FOR ROTATION THEREWITH AND DEFINING A DIAMETRIC ENLARGEMENT THEREOF AND EACH OF SAID SECOND FORM OF SEAL MEMBERS COMPRISING A GENERALLY CYLINDRICAL MEMBER STATIONARILY SECURED IN SAID
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |