US3664469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanically-operated disc-brake
Assignee: Valeo SE
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Filing: 1969-12-29
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Granted: 1972-05-23
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Expires: 1989-12-29
Abstract
Abstract A mechanically operated disc-brake of the kind comprising a disc fast for rotation with the member to be braked, a fixed support, two brake shoes disposed one on each side of said disc and slidably mounted in housings formed in said fixed support, an operating lever adapted to co-operate with one of said shoes through a cam surface, and a transfer member on which said lever is articulated and which transmits to the second said shoe the braking action applied by said operating lever on the first shoe, in which said transfer member is coupled to the fixed support of the brake by an elastic blade which permits a rocking movement of said member with respect to said fixed support.
Inventors
- 👤 Jean Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:11
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/42; F16D65/46; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/2255; F16D55/226; F16D55/2262; F16D65/14; F16D65/16; F16D65/18; F16D2055/0004; F16D2055/0041; F16D2121/00; F16D2121/14; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/22; F16D2125/28; F16D2125/32; F16D2125/58; F16D2125/60; F16D2125/64
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
A mechanically operable disc brake comprising a disc mounted for rotation with a member to be braked, a brake shoe arranged on each side of said disc and slidably mounted in a fixed support, an operating lever bearing directly against one of the brake shoes and pivotally mounted on a force transmission member for rotation about an axis, resilient means rockably mounting said force transmission member about an axis parallel to the pivot axis of the operating lever, said resilient means comprising a spring mounted at its central portion to said fixed support and having two arms each extending from said central portion on each side of said central portion and engaging said force transmission member at locations spaced from said central portion.
Claim 2
Dependent Claim
123 words
A mechanically operable disc brake comprising a disc mounted for rotation with a member to be braked, a brake shoe arranged on each side of said disc and slidably mounted in a fixed support, an operating lever bearing directly against one of the brake shoes and pivotally mounted on a force transmission member for rotation about an axis, resilient means rockably mounting said force transmission member about an axis parallel to the pivot axis of the operating lever, said resilient means comprising a spring mounted at its central portion to said fixed support and having two arms each extending from said central portion on each side of said central portion and engaging said force transmission member at locations spaced from said central portion.
Claim 3
Dependent Claim
47 words
A disc brake as claimed in claim 1, said force transmission member comprising a pair of plates, and a U-shaped leaf spring also disposed between said plates and fixed at its base to said fixed support, said U-shaped spring having resilient arms in contact with said plates.
Claim 4
Dependent Claim
57 words
A disc brake as claimed in claim 2, an another U-shaped leaf spring arranged between said plates, said another spring being fixed at its base to said fixed support, and resilient arms incurved towards each other, each of said arms engaging a brake shoe along the edge of the shoe remote from the axis of said disc.
Claim 5
Dependent Claim
22 words
A disc brake as claimed in claim 3, the three leaf springs being secured to the fixed support by a single bolt.
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |