US3284952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic door operator
Assignee: Individual
•
Filing: 1964-11-27
•
Granted: 1966-11-15
•
Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Edward E Lodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:45
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/668; E05F15/676; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/43; E05Y2201/434; E05Y2600/00; E05Y2600/40; E05Y2600/46; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
IN A DOOR OPERATING DEVICE FOR USE WITH A MOTOR OPERATED VERTICALLY SLIDABLE DOOR MOUNTED ON TRACK MEANS AND WHEREIN THE MOTOR MEANS IS CONNECTED TO THE DOOR; A PAIR OF ROLLERS MOUNTED ON SPACED APART AXLE MEANS ONE A PINCH ROLLER AND THE OTHER A DRIVE ROLLER, AT LEAST ONE OF WHICH IS MADE OF RESILIENT RUBBER-LIKE MATERIAL AND AT LEAST ONE OF WHICH IS DRIVEN BY SAID MOTOR MEANS, ONE OF SAID ROLLERS ENGAGING ONE SIDE OF SAID TRACK MEANS AND THE OTHER ENGAGING THE OPPOSITE SIDE OF SAID TRACK MEANS AT A LOCATION OPPOSITE SAID FIRST ROLLER; TOGGLE ACTION PINCHING MEANS LOCATED BETWEEN SAID MOTOR AND SAID ROLLERS FOR SQUEEZING SAID ROLLERS TOGETHER ON OPPOSITE SIDES OF SAID TRACK INCLUDING A HOOK ENGAGING ONE OF SAID AXLES AND BUSHING MEANS ENGAGING THE OTHER AXLE; PIVOT MEANS FOR CONNECTING THE MOTOR TO THE DOOR FOR PIVOTING MOTION ABOUT AN AXIS PARALLEL TO THE AXES OF SAID PINCH ROLLERS AND RIGID AGAINST OTHER MOTIONS; AND A CONNECTOR RIGIDLY CONNECTED TO SAID PIVOT MEANS AND RIGIDLY CONNECTED TO SAID MOTOR MEANS; SAID PIVOT MEANS, SAID CONNECTOR AND
Claim 2
Dependent Claim
187 words
IN A DOOR OPERATING DEVICE FOR USE WITH A MOTOR OPERATED VERTICALLY SLIDABLE DOOR MOUNTED ON TRACK MEANS AND WHEREIN THE MOTOR MEANS IS CONNECTED TO THE DOOR; A PAIR OF ROLLERS MOUNTED ON SPACED APART AXLE MEANS ONE A PINCH ROLLER AND THE OTHER A DRIVE ROLLER, AT LEAST ONE OF WHICH IS MADE OF RESILIENT RUBBER-LIKE MATERIAL AND AT LEAST ONE OF WHICH IS DRIVEN BY SAID MOTOR MEANS, ONE OF SAID ROLLERS ENGAGING ONE SIDE OF SAID TRACK MEANS AND THE OTHER ENGAGING THE OPPOSITE SIDE OF SAID TRACK MEANS AT A LOCATION OPPOSITE SAID FIRST ROLLER; TOGGLE ACTION PINCHING MEANS LOCATED BETWEEN SAID MOTOR AND SAID ROLLERS FOR SQUEEZING SAID ROLLERS TOGETHER ON OPPOSITE SIDES OF SAID TRACK INCLUDING A HOOK ENGAGING ONE OF SAID AXLES AND BUSHING MEANS ENGAGING THE OTHER AXLE; PIVOT MEANS FOR CONNECTING THE MOTOR TO THE DOOR FOR PIVOTING MOTION ABOUT AN AXIS PARALLEL TO THE AXES OF SAID PINCH ROLLERS AND RIGID AGAINST OTHER MOTIONS; AND A CONNECTOR RIGIDLY CONNECTED TO SAID PIVOT MEANS AND RIGIDLY CONNECTED TO SAID MOTOR MEANS; SAID PIVOT MEANS, SAID CONNECTOR AND
References Cited (Backward Citations)
US2752150A
Cited
US2925267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |