Patent US3217847A successfully refreshed from Google Patents.
US3217847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic clutch with locking means
Assignee: Individual
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Filing: 1963-04-08
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Granted: 1965-11-16
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Harry A Petrak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:50
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A CLUTCH ADAPTED FOR EFFECTING LOCKING ENGAGEMENT BETWEEN A DRIVING MEMBER AND DRIVEN MEMBER IN RESPONSE TO ROTATION OF THE DRIVING MEMBER, SAID CLUTCH COMPRISING FIRST LOCKING MEANS CARRIED BY THE DRIVEN MEMBER, SECOND LOCKING MEANS BEING CONNECTED FOR ROTATION ON THE DRIVING MEMBER AND BEING AXIALLY MOVABLE INTO AND OUT OF LOCKING ENGAGEMENT WITH SAID FIRST LOCKING MEANS, A FIXED ACTUATING MEMBER, A MOVABLE ACUTATING MEMBER INTERPOSITIONED BETWEEN SAID FIXED ACTUATING MEMBER AND SAID SECOND LOCKING MEANS AND BEING ROTATABLE IN RESPONSE TO ROTATION OF THE DRIVING MEMBER, AND SAID ACTUATING MEMBERS HAVING INTER-ENGAGING PORTIONS BEING FORMED TO
Claim 2
Dependent Claim
99 words
A CLUTCH ADAPTED FOR EFFECTING LOCKING ENGAGEMENT BETWEEN A DRIVING MEMBER AND DRIVEN MEMBER IN RESPONSE TO ROTATION OF THE DRIVING MEMBER, SAID CLUTCH COMPRISING FIRST LOCKING MEANS CARRIED BY THE DRIVEN MEMBER, SECOND LOCKING MEANS BEING CONNECTED FOR ROTATION ON THE DRIVING MEMBER AND BEING AXIALLY MOVABLE INTO AND OUT OF LOCKING ENGAGEMENT WITH SAID FIRST LOCKING MEANS, A FIXED ACTUATING MEMBER, A MOVABLE ACUTATING MEMBER INTERPOSITIONED BETWEEN SAID FIXED ACTUATING MEMBER AND SAID SECOND LOCKING MEANS AND BEING ROTATABLE IN RESPONSE TO ROTATION OF THE DRIVING MEMBER, AND SAID ACTUATING MEMBERS HAVING INTER-ENGAGING PORTIONS BEING FORMED TO
References Cited (Backward Citations)
US745763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |