Patent US580427A successfully refreshed from Google Patents.
Patent US3264785A successfully refreshed from Google Patents.
US3264785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety door actuator
Assignee: VEMCO PRODUCTS Inc
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Filing: 1964-12-03
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Granted: 1966-08-09
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Harold L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:45
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/40; E05F15/41; E05F15/60; E05F15/603; E05F15/665; E05F15/668; E05F15/681; E05F15/684; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/23; E05Y2201/232; E05Y2201/236; E05Y2201/60; E05Y2201/622; E05Y2201/644; E05Y2201/646; E05Y2400/00; E05Y2400/10; E05Y2400/30; E05Y2400/3013; E05Y2800/00; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A GARAGE DOOR OPERATING MECHANISM WHEREIN A LINEAL POWER SHUTTLE OPERATES AN ACTUATOR ARM CONNECTED TO A VERTICAL LIFT DOOR TO RAISE AND LOWER THE DOOR AND WHEREIN THERE IS UTILIZED A SAFETY RELEASE COMBINATION INCLUDING A GUIDE TRACK, A POWER SHUTTLE ON SAID TRACK, AND A SECOND SHUTTLE ON SAID TRACK RELEASABLY ASSOCIATED WITH AN ACTATOR ARM OF A GARAGE DOOR, THE IMPROVEMENT IN A SHUTTLE CONSTRUCTION WHICH COMPRISES (A) A SET OF FOUR SUBSTANTIALLY IDENTICAL PLATES EACH SHAPED TO HAVE A SLIDING ENGAGEMENT WITH A TRACK, (B) MEANS JOINING SAID PLATES IN TWO OPPOSED PAIRS ON SAID TRACK TO FORM LONGITUDINALLY ALIGNED SHUTTLES, (C) ONE OF SAID SHUTTLES HAVING OPPOSED RECESSES ON AN AXIS TRANSVERSE OF SAID TRACK, AND (D) MEANS MOUNTED ON THE SECOND OF SAID SHUTTLES POSITIONED TO OVERLIE A PORTION OF SAID SHUTTLE CONTAINING SAID RECESSES TO RESILIENTLY ENGAGE SAID RECESSES, WHEREBY SAID SHUTTLELS ARE NORMALLY ENGAGED FOR TANDEM OPERATION AND SEPARABLE UPON A PREDETERMINED RESISTANCE TO DOOR MOVEMENT.
Claim 2
Dependent Claim
165 words
IN A GARAGE DOOR OPERATING MECHANISM WHEREIN A LINEAL POWER SHUTTLE OPERATES AN ACTUATOR ARM CONNECTED TO A VERTICAL LIFT DOOR TO RAISE AND LOWER THE DOOR AND WHEREIN THERE IS UTILIZED A SAFETY RELEASE COMBINATION INCLUDING A GUIDE TRACK, A POWER SHUTTLE ON SAID TRACK, AND A SECOND SHUTTLE ON SAID TRACK RELEASABLY ASSOCIATED WITH AN ACTATOR ARM OF A GARAGE DOOR, THE IMPROVEMENT IN A SHUTTLE CONSTRUCTION WHICH COMPRISES (A) A SET OF FOUR SUBSTANTIALLY IDENTICAL PLATES EACH SHAPED TO HAVE A SLIDING ENGAGEMENT WITH A TRACK, (B) MEANS JOINING SAID PLATES IN TWO OPPOSED PAIRS ON SAID TRACK TO FORM LONGITUDINALLY ALIGNED SHUTTLES, (C) ONE OF SAID SHUTTLES HAVING OPPOSED RECESSES ON AN AXIS TRANSVERSE OF SAID TRACK, AND (D) MEANS MOUNTED ON THE SECOND OF SAID SHUTTLES POSITIONED TO OVERLIE A PORTION OF SAID SHUTTLE CONTAINING SAID RECESSES TO RESILIENTLY ENGAGE SAID RECESSES, WHEREBY SAID SHUTTLELS ARE NORMALLY ENGAGED FOR TANDEM OPERATION AND SEPARABLE UPON A PREDETERMINED RESISTANCE TO DOOR MOVEMENT.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |