US3708042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon core segmented friction disc
Assignee: Bendix Corp
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Filing: 1970-09-21
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Granted: 1973-01-02
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Expires: 1990-09-21
Abstract
Abstract A friction disc for a disc brake having a plurality of interleaved brake rotor and stator discs which are forced together to provide a friction effect. The rotor is provided with a plurality of segments each of which includes a carbon block having friction material pads fixedly secured to opposite faces thereof. The segments are attached to a ring or strap which holds the segments in fixed spaced-apart relationship to define an annular rotor disc.
Inventors
- 👤 W Krause
- 👤 G Stout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:26
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D2055/0004; F16D2055/0058
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
337 words
A friction disc for a disc type brake, said friction disc comprising: a torque transmitting ring member defined by alternate arcuate first and second sections said first section being a flat metal link provided with a pair of arcuately spaced apart openings at each end thereof and said second section being two parallel spaced apart flat metal links each of which are provided with a pair of arcuately spaced apart openings at each end thereof; said first section having opposite ends thereof interposed between the adjacent ends of said alternate second sections with the respective openings thereof in alignment; first fastening means extending through one set of said aligned openings to fixedly secure said first and second sections together; a plurality of circumferentially spaced apart arcuate friction disc segments arranged end-to-end to form a substantially continuous annular friction member; said friction disc segments each haviNg first and second cup members containing friction material fixedly secured thereto each of which cup members are provided with radially extending arcuately spaced first and second lug portions; a carbon block interposed between said first and second cup members for maintaining the same in spaced apart relationship; second fastening means extending through said first and second cup members and said carbon block for holding the same in fixed relative portions; said first lug portions of said first and second cup members being provided with openings therein for alignment with the remaining openings in one end of said first section and associated aligned openings of said second section; said second lug portions of said first and second cup members being provided with openings therein for alignment with the remaining openings in the opposite end of said first section and associated aligned openings of said second section; and third fastening means extending through said openings in said first and second lug portions and associated aligned openings of said first and second sections to fixedly secure said friction disc segment to said ring member and maintain said first and second sections in fixed relative positions.
Claim 2
Dependent Claim
337 words
A friction disc for a disc type brake, said friction disc comprising: a torque transmitting ring member defined by alternate arcuate first and second sections said first section being a flat metal link provided with a pair of arcuately spaced apart openings at each end thereof and said second section being two parallel spaced apart flat metal links each of which are provided with a pair of arcuately spaced apart openings at each end thereof; said first section having opposite ends thereof interposed between the adjacent ends of said alternate second sections with the respective openings thereof in alignment; first fastening means extending through one set of said aligned openings to fixedly secure said first and second sections together; a plurality of circumferentially spaced apart arcuate friction disc segments arranged end-to-end to form a substantially continuous annular friction member; said friction disc segments each haviNg first and second cup members containing friction material fixedly secured thereto each of which cup members are provided with radially extending arcuately spaced first and second lug portions; a carbon block interposed between said first and second cup members for maintaining the same in spaced apart relationship; second fastening means extending through said first and second cup members and said carbon block for holding the same in fixed relative portions; said first lug portions of said first and second cup members being provided with openings therein for alignment with the remaining openings in one end of said first section and associated aligned openings of said second section; said second lug portions of said first and second cup members being provided with openings therein for alignment with the remaining openings in the opposite end of said first section and associated aligned openings of said second section; and third fastening means extending through said openings in said first and second lug portions and associated aligned openings of said first and second sections to fixedly secure said friction disc segment to said ring member and maintain said first and second sections in fixed relative positions.
Claim 3
Dependent Claim
43 words
A friction disc as claimed in claim 1. wherein: said first and second lug portions extend radially outwardly from said cup members into engagement with said ring member thereby positioning said cup members and attached carbon block radially inwardly from said ring member.
Claim 4
Dependent Claim
31 words
A friction disc as claimed in claim 1. wherein said disc brake is provided with at least one rotor member and wherein: said rotor member is defined by said friction disc.
Claim 5
Dependent Claim
26 words
A friction disc as claimed in claim 1. wherein: said second fastening means includes a rivet member extending through the center portion of said carbon block.
Claim 6
Dependent Claim
85 words
A friction disc as claimed in claim 1. wherein said disc brake is provided with at least one rotor member interposed between two stator members engageable with said rotor member and wherein: said rotor member is defined by said friction disc; said stator members being arranged concentric with said rotor member and each having an annular layer of friction material fixedly secured thereto; and actuating means operatively connected to said rotor and stator members for forcing the same into engagement to establish frictional engagement therebetween.
Claim 7
Dependent Claim
28 words
A friction disc as claimed in claim 5. wherein: said carbon blocks are subjected to compression only in response to frictional engagement of said rotor and stator members.
Claim 8
Dependent Claim
51 words
A friction disc as claimed in claim 1 wherein the disc type brake is adapted for use with a rotatable wheel and wherein: said two parallel spaced apart flat metal links are recessed at the radially outermost portion thereof to accommodate an axially extending drive key fixedly secured to said wheel.
Claim 9
Dependent Claim
27 words
A friction disc as claimed in claim 7 wherein: said recessed radially outermost portion is in alignment with a radial line extending between adjacent friction disc segments.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |