US3099334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator roller guides
Assignee: Otis Elevator Co
•
Filing: 1962-05-15
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Granted: 1963-07-30
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Expires: 1982-05-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Benjamin Whitehead Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:29
CPC Classifications
B; B66; B66B; B66B7/00; B66B7/02; B66B7/04; B66B7/046; B66B7/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN AN ELEVATOR INSTALLATION IN WHICH A GUIDE RAIL HAVING A FLAT GUIDE SURFACE ON ITS FACE AND ON EACH OF ITS OPPOSED TWO SIDES IS PROVIDED FOR GUIDING THE PASSAGE OF A CAR IN ITS HOISTWAY BY COACTION WITH A GUIDE ELEMENT THAT IS CARRIED BY THE CAR; SAID GUIDE ELEMENT COMPRISING A PLURALITY OF PIVOTALLY MOUNTED GUIDE ROLLERS, ONE COACTING WITH EACH OF SAID GUIDE SURFACES, EACH OF SAID ROLLERS BEING PIVOTALLY MOUNTED ON A STANDARD WHICH ITSELF IS PIVOTALLY MOUNTED, RESILIENT MEANS INDIVIDUAL TO EACH STANDARD AND ACTING THROUGH ITS PIVOT CAUSING THE ASSOCATED ROLLER TO EXERT PRESSURE ON ITS CONJUGATE GUIDE SURFACE AT ALL TIMES, AND RIGID MEANS ADJUSTABLE IN LENGTH INTERCONNECTING THE STANDARDS OF THE SIDE SURFACE ROLLERS
Claim 2
Dependent Claim
123 words
IN AN ELEVATOR INSTALLATION IN WHICH A GUIDE RAIL HAVING A FLAT GUIDE SURFACE ON ITS FACE AND ON EACH OF ITS OPPOSED TWO SIDES IS PROVIDED FOR GUIDING THE PASSAGE OF A CAR IN ITS HOISTWAY BY COACTION WITH A GUIDE ELEMENT THAT IS CARRIED BY THE CAR; SAID GUIDE ELEMENT COMPRISING A PLURALITY OF PIVOTALLY MOUNTED GUIDE ROLLERS, ONE COACTING WITH EACH OF SAID GUIDE SURFACES, EACH OF SAID ROLLERS BEING PIVOTALLY MOUNTED ON A STANDARD WHICH ITSELF IS PIVOTALLY MOUNTED, RESILIENT MEANS INDIVIDUAL TO EACH STANDARD AND ACTING THROUGH ITS PIVOT CAUSING THE ASSOCATED ROLLER TO EXERT PRESSURE ON ITS CONJUGATE GUIDE SURFACE AT ALL TIMES, AND RIGID MEANS ADJUSTABLE IN LENGTH INTERCONNECTING THE STANDARDS OF THE SIDE SURFACE ROLLERS
References Cited (Backward Citations)
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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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |