Patent US3240300A successfully refreshed from Google Patents.
US3240300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-directional lock
Assignee: BINKLEY Co
•
Filing: 1963-09-09
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Granted: 1966-03-15
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Harry M Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:28
CPC Classifications
F; F16; F16D; F16D59/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A BI-DIRECTIONAL LOCK COMPRISING: (A) A DRIVEN SHAFT, (B) A CAM DRIVINGLY CARRIED BY THE SHAFT AND HAVING A PLURALITY OF PAIRS OF OPPOSED SLOPES THEREON, (C) A FIXED MEMBER PROVIDING A REACTION SURFACE SURROUNDING THE CAM, (D) A PLURALITY OF PAIRS OF FRICTION SHOES DISPOSED BETWEEN THE CAM SLOPES AND REACTION SURFACE, EACH SHOE HAVING AN OUTER BEARING SURFACE SLIDABLY ENGAGING THE REACTION SURFACE, (E) MEANS ON EACH SHOE CONTACTING THE ASSOCIATED CAM SLOPE TO PROVIDE A PIVOT AXIS ABOUT WHICH THE SHOE TURNS AS THE OUTER BEARING SURFACE WEARS SO AS TO EXTEND THE SHOE LIFE, (F) RESILIENT MEANS INTERPOSED BETWEEN EACH PAIR OF SHOE TENDING TO HOLD THE SHOE IN WEDGING ENGAGEMENT WITH THE CAM SLOPES AND REACTION SURFACE TO LOCK THE CAM AND SHAFT TO THE FIXED MEMBER AGAINST MOVEMENT IN EITHER DIRECTION, (G) A RELEASE PLATE ROTATIVELY MOUNTED ON THE SHAFT INCLUDING PROJECTIONS DISPOSED BETWEEN THE CAM AND REACTION SURFACE AND SEPARATING THE PAIRS OF SHOES, AND (H) A DRIVING MEMBER CONNECTED TO THE DRIVEN SHAFT
Claim 2
Dependent Claim
171 words
A BI-DIRECTIONAL LOCK COMPRISING: (A) A DRIVEN SHAFT, (B) A CAM DRIVINGLY CARRIED BY THE SHAFT AND HAVING A PLURALITY OF PAIRS OF OPPOSED SLOPES THEREON, (C) A FIXED MEMBER PROVIDING A REACTION SURFACE SURROUNDING THE CAM, (D) A PLURALITY OF PAIRS OF FRICTION SHOES DISPOSED BETWEEN THE CAM SLOPES AND REACTION SURFACE, EACH SHOE HAVING AN OUTER BEARING SURFACE SLIDABLY ENGAGING THE REACTION SURFACE, (E) MEANS ON EACH SHOE CONTACTING THE ASSOCIATED CAM SLOPE TO PROVIDE A PIVOT AXIS ABOUT WHICH THE SHOE TURNS AS THE OUTER BEARING SURFACE WEARS SO AS TO EXTEND THE SHOE LIFE, (F) RESILIENT MEANS INTERPOSED BETWEEN EACH PAIR OF SHOE TENDING TO HOLD THE SHOE IN WEDGING ENGAGEMENT WITH THE CAM SLOPES AND REACTION SURFACE TO LOCK THE CAM AND SHAFT TO THE FIXED MEMBER AGAINST MOVEMENT IN EITHER DIRECTION, (G) A RELEASE PLATE ROTATIVELY MOUNTED ON THE SHAFT INCLUDING PROJECTIONS DISPOSED BETWEEN THE CAM AND REACTION SURFACE AND SEPARATING THE PAIRS OF SHOES, AND (H) A DRIVING MEMBER CONNECTED TO THE DRIVEN SHAFT
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |