US4210019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhead cable transport testing
Assignee: Poma SA
•
Filing: 1979-04-27
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Granted: 1980-07-01
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Expires: 1999-04-27
Abstract
Abstract Overhead cable transport installation including a device for testing the clamping of the grips coupling a gondola carriage on to the cable. A test wheel is driven with a speed synchronous with that of the cable before the carriage is engaged on the test wheel and is braked during the slip detection phase.
Inventors
- 👤 Roger Laurent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:28
CPC Classifications
B; B61; B61B; B61B12/00; B61B12/12; B61B12/122; B61B12/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
197 words
An overhead cable transport installation, including at least one detachable grip carriage for coupling a gondola on to the cable, a device to accelerate and synchronize the said carriage prior to its coupling on the cable having at least one synchronizing wheel engaging the said carriage by friction in the area above the coupling point, and rotated at a tangential speed synchronous with that of the cable and a device for testing the clamping of the said grip below the said coupling point able to exert on the said carriage coupled on the cable a braking or accelerating force, the said device for testing the clamping including at least one test wheel able to engage the said carriage by friction, a means of rotating the said test wheel to drive it at a speed synchronous with that of the cable before the engagement of the said carriage on the said wheel, and of exerting on the said test wheel an opposing force tending to impose on the test wheel a speed different from that of the cable during the said engagement, and a detector of the differential speed between the said test wheel and the said cable.
Claim 2
Dependent Claim
197 words
An overhead cable transport installation, including at least one detachable grip carriage for coupling a gondola on to the cable, a device to accelerate and synchronize the said carriage prior to its coupling on the cable having at least one synchronizing wheel engaging the said carriage by friction in the area above the coupling point, and rotated at a tangential speed synchronous with that of the cable and a device for testing the clamping of the said grip below the said coupling point able to exert on the said carriage coupled on the cable a braking or accelerating force, the said device for testing the clamping including at least one test wheel able to engage the said carriage by friction, a means of rotating the said test wheel to drive it at a speed synchronous with that of the cable before the engagement of the said carriage on the said wheel, and of exerting on the said test wheel an opposing force tending to impose on the test wheel a speed different from that of the cable during the said engagement, and a detector of the differential speed between the said test wheel and the said cable.
Claim 3
Dependent Claim
36 words
An installation in accordance with claim 1, the said synchronizing wheel and the said test wheel being both equipped with a pneumatic tire, the trend of which works on a running surface provided on the carriage.
Claim 4
Dependent Claim
36 words
An installation in accordance with claim 1, having a plurality of synchronizing wheels and test wheels staggered along the trajectory over which moves the said carriage in the sections above and below the said coupling point.
Claim 5
Dependent Claim
21 words
An installation in accordance with claim 1, the said plurality of test wheels being positively interconnected and with a driving component.
Claim 6
Dependent Claim
30 words
An installation in accordance with claim 1, the said detector being so devised as to signal any difference in speed between the said synchronizing wheel and the said test wheel.
Claim 7
Dependent Claim
42 words
An installation in accordance with claim 5, having a first tachometric generator coupled with the synchronization wheel and a second tachometric generator coupled with the test wheel, the said detector signalling any difference between the signals emitted by the said tachometric generators.
Claim 8
Dependent Claim
28 words
An installation in accordance with claim 1, having an electric motor to drive the said test wheel and designed to exert a braking force during the clamping test-phase.
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) | 1983-07-01 | 1983-12-31 | 1984-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-01 | 1987-12-31 | 1988-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-01 | 1991-12-31 | 1992-07-01 | $7700.00 | Window Closed / Lapsed |