US3332665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmental elevator sheave arrangement
Assignee: Otis Elevator Co
•
Filing: 1966-04-28
•
Granted: 1967-07-25
•
Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 Eva C Bruns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:21
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/50; B; B66; B66D; B66D3/00; B66D3/04; B66D3/06; B66D2700/00; B66D2700/02; B66D2700/026; B66D2700/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A TRACTION MACHINE ELEVATOR SHEAVE ARRANGEMENT AROUND WHICH A PLURALITY OF HOISTING ROPES PASS; A PLURALITY OF SEGMENTS, OR INDIVIDUAL SHEAVES, EACH PROVIDED FOR A DIFFERENT HOISTING ROPE; A SHAFT; A PAIR OF BEARINGS SUPPORTED ON SAID SHAFT; A HUB ROTATABLY SUPPORTED ON SAID BEARINGS AND COMMON TO SAID PLURALITY OF SEGMENTS; SAID SEGMENTS BEING MOUNTED ADJACENT EACH OTHER ON SAID HUB; A SLEEVE BEARING INTERMEDIATE SAID HUB AND AT LEAST ALL BUT A PARTICULAR ONE OF SAID SEGMENTS WHEREBY ALL OF SAID SEGMENTS ARE FREE TO ROTATE INDEPENDENTLY OF EACH OTHER; EACH OF SAID SEGMENTS HAVING A RIM SECTION EXTENDING AT SUBSTANTIALLY THE SAME PREDETERMINED RADIAL DISTANCE FROM SAID HUB; A ROPE GROOVE IN EACH RIM SECTION RECEIVING AND DELIVERING THE ROPE FOR WHICH ITS SEGMENT IS PROVIDED; AND MEANS ATTACHED TO SAID HUB SECURING SAID SEGMENTS IN THEIR RESPECTIVE LOCATIONS THEREON.
Claim 2
Dependent Claim
144 words
IN A TRACTION MACHINE ELEVATOR SHEAVE ARRANGEMENT AROUND WHICH A PLURALITY OF HOISTING ROPES PASS; A PLURALITY OF SEGMENTS, OR INDIVIDUAL SHEAVES, EACH PROVIDED FOR A DIFFERENT HOISTING ROPE; A SHAFT; A PAIR OF BEARINGS SUPPORTED ON SAID SHAFT; A HUB ROTATABLY SUPPORTED ON SAID BEARINGS AND COMMON TO SAID PLURALITY OF SEGMENTS; SAID SEGMENTS BEING MOUNTED ADJACENT EACH OTHER ON SAID HUB; A SLEEVE BEARING INTERMEDIATE SAID HUB AND AT LEAST ALL BUT A PARTICULAR ONE OF SAID SEGMENTS WHEREBY ALL OF SAID SEGMENTS ARE FREE TO ROTATE INDEPENDENTLY OF EACH OTHER; EACH OF SAID SEGMENTS HAVING A RIM SECTION EXTENDING AT SUBSTANTIALLY THE SAME PREDETERMINED RADIAL DISTANCE FROM SAID HUB; A ROPE GROOVE IN EACH RIM SECTION RECEIVING AND DELIVERING THE ROPE FOR WHICH ITS SEGMENT IS PROVIDED; AND MEANS ATTACHED TO SAID HUB SECURING SAID SEGMENTS IN THEIR RESPECTIVE LOCATIONS THEREON.
References Cited (Backward Citations)
US2672320A
Cited
US3199840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |