Patent US4366773A successfully refreshed from Google Patents.
US3207501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door operator mechanism
Assignee: Consolidated Electronics Industries Corp
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Filing: 1963-06-12
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Granted: 1965-09-21
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Emmor V Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:08
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/40; E05F15/41; E05Y; E05Y2400/00; E05Y2400/10; E05Y2400/52; E05Y2400/53; E05Y2400/54; E05Y2400/55; E05Y2400/552; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN COMBINATION WITH A DOOR TO BE OPENED AND CLOSED AND HAVING AN UNBALANCED FORCE RESISTING ONE OF SUCH MOVEMENTS, A DOOR OPERATOR COMPRISING, IN COMBINATION, A MOTOR, A DRIVE TRAIN BETWEEN SAID MOTOR AND DOOR AND INCLUDING A ROTATABLE SHAFT AND A ONE-WAY CLUTCH, BRAKE MEANS FOR SAID ROTATABLE SHAFT, SAID MOTOR DRIVING THROUGH SAID CLUTCH FOR DOOR MOVEMENT IN ONE DIRECTION, SAID UNBALANCED FORCE ON SAID DOOR CAUSING DOOR MOVEMENT IN THE OPPOSITE DIRECTION AND DRIVING THROUGH SAID CLUTCH TO SAID ROTATABLE SHAFT, AND MEANS TO ACTUATE SAID BRAKE MEANS DURING DRIVE OF SAID ROTATABLE SHAFT FROM SAID UNBALANCED FORCE.
Claim 2
Dependent Claim
102 words
IN COMBINATION WITH A DOOR TO BE OPENED AND CLOSED AND HAVING AN UNBALANCED FORCE RESISTING ONE OF SUCH MOVEMENTS, A DOOR OPERATOR COMPRISING, IN COMBINATION, A MOTOR, A DRIVE TRAIN BETWEEN SAID MOTOR AND DOOR AND INCLUDING A ROTATABLE SHAFT AND A ONE-WAY CLUTCH, BRAKE MEANS FOR SAID ROTATABLE SHAFT, SAID MOTOR DRIVING THROUGH SAID CLUTCH FOR DOOR MOVEMENT IN ONE DIRECTION, SAID UNBALANCED FORCE ON SAID DOOR CAUSING DOOR MOVEMENT IN THE OPPOSITE DIRECTION AND DRIVING THROUGH SAID CLUTCH TO SAID ROTATABLE SHAFT, AND MEANS TO ACTUATE SAID BRAKE MEANS DURING DRIVE OF SAID ROTATABLE SHAFT FROM SAID UNBALANCED FORCE.
References Cited (Backward Citations)
US2929623A
Cited
US2954224A
Cited
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 |