US3261431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic friction unit
Assignee: Lambert Brake Corp
•
Filing: 1964-06-04
•
Granted: 1966-07-19
•
Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 Osborn A Kershner
- 👤 Emil H Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:58
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/24; F16D55/46; F16D2121/00; F16D2121/18; F16D2121/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A FRICTION UNIT COMPRISING FIRST AND SECOND RELATIVELY ROTATABLE AND RELATIVELY AXIALLY SHIFTABLE AND ENGAGEABLE MENAS, ONE OF SAID MEANS COMPRISING A MAGNETIC ROTATABLE MEMBER, THIRD MEANS ADJACENT SAID FIRST AND SECOND MEANS AND SHIFTABLE RELATIVE TO AND FOR RELATIVELY URGING SAID FIRST AND SECOND MEANS INTO ENGAGEMENT WITH EACH OTHER, AND ROTATIVE MEANS OPERABLY CONNECTED WITH SAID THIRD MEANS AND RELEASABLY MAGNETICALLY AND SLIPPINGLY COUPLEABLE WITH SAID ROTATABLE MEMBER FOR SHIFTING SAID THIRD
Claim 2
Dependent Claim
74 words
A FRICTION UNIT COMPRISING FIRST AND SECOND RELATIVELY ROTATABLE AND RELATIVELY AXIALLY SHIFTABLE AND ENGAGEABLE MENAS, ONE OF SAID MEANS COMPRISING A MAGNETIC ROTATABLE MEMBER, THIRD MEANS ADJACENT SAID FIRST AND SECOND MEANS AND SHIFTABLE RELATIVE TO AND FOR RELATIVELY URGING SAID FIRST AND SECOND MEANS INTO ENGAGEMENT WITH EACH OTHER, AND ROTATIVE MEANS OPERABLY CONNECTED WITH SAID THIRD MEANS AND RELEASABLY MAGNETICALLY AND SLIPPINGLY COUPLEABLE WITH SAID ROTATABLE MEMBER FOR SHIFTING SAID THIRD
References Cited (Backward Citations)
US2061787A
Cited
US2623619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |