US5019018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for tensioning a power transmission belt
Assignee: Hutchinson SA
•
Filing: 1990-02-22
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Granted: 1991-05-28
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Expires: 2010-02-22
Abstract
Abstract A device for tensioning a power transmission belt which passes over a pulley. The pulley is supported by an arm and by a rotary part which has one end of an elastically-deformable element fixed thereto, the element being wound around the part and having its other end fixed to a fixed point. The element is constituted by a length of flat belt comprising a layer of cord embedded in a strip of elastomer material. The invention is particularly applicable to the car industry and to the domestic appliance industry.
Inventors
- 👤 Pierre Georget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:13
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/12; F16H7/1209; F16H7/1245
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
A device for tensioning a power transmission belt, the device comprising an elastically-deformable element which is mounted between a fixed point and the shaft of a pulley over which the belt passes, and which is arranged to put the belt under tension when it is itself under tension, wherein the elastically-deformable element comprises a layer of cords having a low modulus of extension and embedded in a strip of elastomer type material.
Claim 2
Independent Claim
72 words
A device for tensioning a power transmission belt, the device comprising an elastically-deformable element which is mounted between a fixed point and the shaft of a pulley over which the belt passes, and which is arranged to put the belt under tension when it is itself under tension, wherein the elastically-deformable element comprises a layer of cords having a low modulus of extension and embedded in a strip of elastomer type material.
Claim 3
Dependent Claim
19 words
A device according to claim 1, wherein the elastically-deformable element is constituted by a length of flat transmission belt.
Claim 4
Dependent Claim
14 words
A device according to claim 1, wherein the elastically-deformable element is wound on itself.
Claim 5
Dependent Claim
26 words
A device according to claim 3, wherein thin strips of material having a determined coefficient of friction are interposed between superposed thicknesses of the elastically--deformable element.
Claim 6
Dependent Claim
54 words
A device accordiing to claim 1, wherein the elastically-deformable element is wound on a cylindrical part which is rotatable, and has one end fixed thereto, and which is itself connected to the shaft of a pulley by a lever arm, while the other end of the elastically-deformable element is connected to a fixed point.
Claim 7
Dependent Claim
46 words
A device according to claim 1, wherein the elastically-deformable element is wound on a fixed device to which it is fixed via one end, whereas its other end is connected to the shaft of a pulley by means of a part which is moveable in translation.
Claim 8
Dependent Claim
26 words
A device according to claim 5, including an abutment limiting the stroke of the moving part in the direction corresponding to the elastically deformable element relaxing.
Claim 9
Dependent Claim
26 words
A device according to claim 6, including an abutment limiting the stroke of the moving part in the direction corresponding to the elastically deformable element relaxing.
Claim 10
Dependent Claim
19 words
A device according to claim 1, wherein the elastically-deformable element is constituted by a closed loop of flat belt.
Claim 11
Dependent Claim
26 words
A device according to claim 3, wherein thin sheets of material having a determined coefficient of friction are imposed between superposed thicknesses of the elastically-deformable element.
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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) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |