US4347916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll guide shoe for elevators or the like
Assignee: INVENTO AG 6052 HERGISWIL NW SWITZERLAND A CORP OF SWITZERLAND
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Filing: 1980-11-24
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Granted: 1982-09-07
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Expires: 2000-11-24
Abstract
Abstract Rotatably mounted rolls arranged behind one another in a support or carrier element of a roll guide shoe posess different diameters. In this way it is possible to reduce to a minimum the unquiet or jerky travel of a moved, guided portion of the elevator which is caused by flattening of the rolls as a result of longer standstill times of the roll guide shoe.
Inventors
- 👤 Joris Schroder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:39
CPC Classifications
B; B66; B66B; B66B7/00; B66B7/02; B66B7/04; B66B7/046; F; F16; F16C; F16C29/00; F16C29/04; F16C29/045; F16C29/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A roll guide shoe for elevators comprising: a plurality of travelling rolls arranged behind one another in the direction of travel of the elevator and adapted to bear against at least one guide surface of a guide rail; at least one support element adapted to be pivotably connected with a movable part of the elevator; means for rotatably mounting said travelling rolls in said support element; said travelling rolls of said at least one support element possessing different diameters with respect to one another; said plurality of travelling rolls comprise four travelling rolls arranged in pairs behind one another in the direction of travel of the elevator part; each of the pair of travelling rolls having different diameters; each pair of travelling rolls being operatively associated with a respective support body of a related support element; yoke means with which there is pivotably connected each related support element; and said yoke means being pivotably connected with the movable elevator part.
Claim 2
Dependent Claim
160 words
A roll guide shoe for elevators comprising: a plurality of travelling rolls arranged behind one another in the direction of travel of the elevator and adapted to bear against at least one guide surface of a guide rail; at least one support element adapted to be pivotably connected with a movable part of the elevator; means for rotatably mounting said travelling rolls in said support element; said travelling rolls of said at least one support element possessing different diameters with respect to one another; said plurality of travelling rolls comprise four travelling rolls arranged in pairs behind one another in the direction of travel of the elevator part; each of the pair of travelling rolls having different diameters; each pair of travelling rolls being operatively associated with a respective support body of a related support element; yoke means with which there is pivotably connected each related support element; and said yoke means being pivotably connected with the movable elevator part.
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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |