Patent US2440455A successfully refreshed from Google Patents.
Patent US3086825A successfully refreshed from Google Patents.
US3086825A
Expired / Lapsed
US
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Shaft seal
Assignee: Controls Company of America
•
Filing: 1960-07-12
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Granted: 1963-04-23
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Expires: 1980-07-12
Abstract
No abstract record available.
Inventors
- 👤 Donald E Hilden
- 👤 Jacob N Groeneveld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:24
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/54; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/219; Y10T74/2191
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A BEARING STRUCTURE FOR AN ELECTRIC MOTOR COMPRISING, A BEARING, A MOTOR SHAFT SUPPORTED BY SAID BEARING, BEARING SUPPORT MEANS, A CONICAL GASKET FORMING A STATIC SEAL BETWEEN SAID BEARING AND SAID BEARING SUPPORT MEANS, AND A CYLINDRICAL DYNAMIC SEAL INTEGRAL WITH SAID GASKET SEALINGLY ENGAGING SAID MOTOR SHAFT.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |