US3687247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating lining high torque brake assembly
Assignee: Individual
•
Filing: 1970-10-16
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Granted: 1972-08-29
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Expires: 1990-10-16
Abstract
Abstract A drum type brake with an internal expanding shoe. The brake lining is positioned between the shoe and the drum but is not bonded or secured as it floats in place. The lining extends nearly the full circle of the drum. Guides are provided to control the position of the shoe with respect to the lining. It is possible with this design to get excellent self-energizing effects without locking.
Inventors
- 👤 Carl E Bricker
- 👤 Kenneth P Hillegass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
F; F16; F16D; F16D51/00; F16D51/46; F16D51/48; F16D51/52; F16D65/00; F16D65/38; F16D65/40; F16D65/42; F16D65/46
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
101 words
A brake assembly, comprising: a rotatable drum having a cylindrical inner surface; at least one nOn-rigid brake shoe within the drum; friction lining material between the cylindrical surface of the drum and the brake shoe and separate from the drum and the brake shoe; a non-rotating support; means affixed to the support for moving the shoe outwardly to force the lining material against the drum and serving to hold the shoe in non-rotating relation relative to the support; and at least one guide means carried by the support for maintaining the relative positions of the lining material and the brake shoe.
Claim 2
Dependent Claim
101 words
A brake assembly, comprising: a rotatable drum having a cylindrical inner surface; at least one nOn-rigid brake shoe within the drum; friction lining material between the cylindrical surface of the drum and the brake shoe and separate from the drum and the brake shoe; a non-rotating support; means affixed to the support for moving the shoe outwardly to force the lining material against the drum and serving to hold the shoe in non-rotating relation relative to the support; and at least one guide means carried by the support for maintaining the relative positions of the lining material and the brake shoe.
Claim 3
Dependent Claim
49 words
The brake assembly according to claim 1 wherein the lining material is a single strip of friction material formed into a cylindrical configuration with an outer diameter nearly equal to the diameter of the cylindrical inner surface of the drum and with the ends of the strip nearly abutting.
Claim 4
Dependent Claim
43 words
The brake assembly according to claim 1 where each guide means includes a C-shaped member having leg portions projecting on opposite sides of the brake shoe and lining material and allowing a limited amount of axial movement between the shoe and lining material.
Claim 5
Dependent Claim
28 words
The brake assembly according to claim 1 wherein at least one guide means is adjustable to limit the separation between the brake shoe, lining material, and brake drum.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |