Patent EP0276076A2 successfully refreshed from Google Patents.
Patent US3207500A successfully refreshed from Google Patents.
US3207500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power coupling mechanism
Assignee: Heath Co
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Filing: 1962-03-27
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Granted: 1965-09-21
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Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Wayne J Kooy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:44
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/40; E05F15/41; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
A MECHANISM SAFETY ARRANGEMENT FOR TRANSMITTING MECHANICAL DRIVING POWER FROM A POWER SOURCE TO A MOVABLE DOOR COMPRISING: A GUIDE AND A TROLLEY MOVABLE ON SAID GUIDE, MEANS FOR MECHANICALLY CONNECTING SAID DOOR TO SAID TROLLEY FOR MOVEMENT THEREWITH, SAID TROLLEY INCLUDING A DRIVE SAFETY RELEASE MEMBER MOVABLE RELATIVE TO THE TROLLEY AND HAVING FIRST AND SECOND CAM SURFACES AND CONNECTED TO SAID POWER SOURCE, A PAIR OF DRIVEN SAFETY RELEASE MEMBERS INDIVIDUALLY CONNECTED TO THE TROLLEY, AND A PAIR OF SPRINGS INDIVIDUALLY ASSOCIATED WITH DIFFERENT ONES OF SAID DRIVEN MEMBERS FOR URGING THEM INTO COUPLED ENGAGEMENT WITH DIFFERENT ONES OF T HE CAM SURFACES OF SAID DRIVE MEMBER FOR TRANSMITTING DRIVING POWER TO SAID DOOR WHEN SAID DOOR IS ALLOWED TO MOVE FREELY, SAID FIRST CAM SURFACE TRANSMITTING POWER THROUGH ONE OF SAID DRIVEN MEMBERS TO MOVE SAID DOOR IN ONE DIRECTION AND SAID SECOND CAM SURFACE TRANSMITTING POWER THROUGH THE OTHER DRIVEN MEMBER TO MOVE SAID DOOR IN A DIRECTION OPPOSITE TO SAID ONE DIRECTION, EACH OF SAID SPRINGS EXERTING BETWEEN THE DRIVEN MEMBER WITH WHICH IT IS ASSOCIATED AND ITS CAM SURFACE A FORCE HAVING A MAGNITUDE WHICH WILL ALLOW SAID DRIVE MEMBER TO BE DECOUPLED FROM ONE OR THE OTHER OF SAID DRIVEN MEMBERS WHEN SAID DOOR ENCOUNTERS EXCESSIVE RESTRAINING FORCE AS IT IS MOVED IN ONE DIRECTION OR THE OTHER.
Claim 2
Dependent Claim
225 words
A MECHANISM SAFETY ARRANGEMENT FOR TRANSMITTING MECHANICAL DRIVING POWER FROM A POWER SOURCE TO A MOVABLE DOOR COMPRISING: A GUIDE AND A TROLLEY MOVABLE ON SAID GUIDE, MEANS FOR MECHANICALLY CONNECTING SAID DOOR TO SAID TROLLEY FOR MOVEMENT THEREWITH, SAID TROLLEY INCLUDING A DRIVE SAFETY RELEASE MEMBER MOVABLE RELATIVE TO THE TROLLEY AND HAVING FIRST AND SECOND CAM SURFACES AND CONNECTED TO SAID POWER SOURCE, A PAIR OF DRIVEN SAFETY RELEASE MEMBERS INDIVIDUALLY CONNECTED TO THE TROLLEY, AND A PAIR OF SPRINGS INDIVIDUALLY ASSOCIATED WITH DIFFERENT ONES OF SAID DRIVEN MEMBERS FOR URGING THEM INTO COUPLED ENGAGEMENT WITH DIFFERENT ONES OF T HE CAM SURFACES OF SAID DRIVE MEMBER FOR TRANSMITTING DRIVING POWER TO SAID DOOR WHEN SAID DOOR IS ALLOWED TO MOVE FREELY, SAID FIRST CAM SURFACE TRANSMITTING POWER THROUGH ONE OF SAID DRIVEN MEMBERS TO MOVE SAID DOOR IN ONE DIRECTION AND SAID SECOND CAM SURFACE TRANSMITTING POWER THROUGH THE OTHER DRIVEN MEMBER TO MOVE SAID DOOR IN A DIRECTION OPPOSITE TO SAID ONE DIRECTION, EACH OF SAID SPRINGS EXERTING BETWEEN THE DRIVEN MEMBER WITH WHICH IT IS ASSOCIATED AND ITS CAM SURFACE A FORCE HAVING A MAGNITUDE WHICH WILL ALLOW SAID DRIVE MEMBER TO BE DECOUPLED FROM ONE OR THE OTHER OF SAID DRIVEN MEMBERS WHEN SAID DOOR ENCOUNTERS EXCESSIVE RESTRAINING FORCE AS IT IS MOVED IN ONE DIRECTION OR THE OTHER.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |