Patent US1358877A successfully refreshed from Google Patents.
Patent US3575267A successfully refreshed from Google Patents.
US3575267A
Expired / Lapsed
US
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Self-compensating load responsive brake assembly
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1969-04-21
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Granted: 1971-04-20
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Expires: 1989-04-21
Abstract
Abstract A self-compensating brake assembly continually applies a braking or drag force on a rotating shaft in response to changes in weight on the shaft. A spring-biased bearing moves vertically relative to a carrier plate in response to changes in weight on the shaft it supports. An endless brake band is attached to a pivot arm with one end connected to the bearing support and the other end connected to the bearing member. The brake band, which continually engages a brakedrum rotating with the shaft, is connected to the arm between its ends. Therefore, the brake band support point moves a lesser vertical distance in proportion to the brake drum to provide tightening and loosening contact of the band in proportion to the weight on the shaft.
Inventors
- 👤 Walter William Lauer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:55
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/06; B65H2801/00; B65H2801/93
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
166 words
A self-compensating brake assembly for continually applying a weight responsive braking force to a rotating shaft journaled in at least one fixed bearing relative to which said shaft pivots in response to a variable weight on said shaft, said brake assembly comprising a carrier plate, a bearing member for said shaft resiliently supported on said carrier plate for vertical movement relative thereto, said carrier plate and bearing member adapted to support said shaft at a given distance from said fixed bearing, a pivot arm, first means connecting one end of said arm to said carrier plate, second means connecting the other end of said arm to said bearing member, an endless brake band, a brakedrum adapted to be mounted on said shaft for rotation therewith, said endless brake band having a friction surface adapted to engage a substantial portion of the periphery of said brakedrum when mounted on said shaft, said brake band connected to said pivot arm at a selected point between said ends thereof.
Claim 2
Dependent Claim
166 words
A self-compensating brake assembly for continually applying a weight responsive braking force to a rotating shaft journaled in at least one fixed bearing relative to which said shaft pivots in response to a variable weight on said shaft, said brake assembly comprising a carrier plate, a bearing member for said shaft resiliently supported on said carrier plate for vertical movement relative thereto, said carrier plate and bearing member adapted to support said shaft at a given distance from said fixed bearing, a pivot arm, first means connecting one end of said arm to said carrier plate, second means connecting the other end of said arm to said bearing member, an endless brake band, a brakedrum adapted to be mounted on said shaft for rotation therewith, said endless brake band having a friction surface adapted to engage a substantial portion of the periphery of said brakedrum when mounted on said shaft, said brake band connected to said pivot arm at a selected point between said ends thereof.
Claim 3
Dependent Claim
21 words
The assembly defined in claim 1 wherein said bearing member is resiliently supported on said carrier plate by a spring means.
Claim 4
Dependent Claim
28 words
The assembly defined in claim 1 wherein said first means is adjustable to provide selective positioning of said one end of said arm relative to said carrier plate.
Claim 5
Dependent Claim
22 words
The assembly as defined in claim 3 wherein said bearing member is resiliently supported on said carrier plate by a spring means.
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |