US3731769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction member assembly
Assignee: Goodrich Corp
•
Filing: 1971-10-13
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Granted: 1973-05-08
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Expires: 1991-10-13
Abstract
Abstract An annular friction member assembly for a disc type brake or clutch having segments of heat absorbing material sandwiched between and supported by facing members of carbon composite material. The facing members have driving lugs located at positions spaced from the heat-swept area for transmitting torque forces directly from the friction surfaces of the facing members to an associated brake or clutch part. Reinforcing members are located at the driving lugs and provide additional bearing area as well as added support to the facing members of carbon composite material to prevent failure under torque loads at the fasteners holding the facing members and the segments of heat absorbing material together.
Inventors
- 👤 W Ely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:16
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/121
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
An annular friction member assembly for a brake or clutch mechanism comprising a plurality of arcuate segmental bodies of heat absorbing material spaced apart around the annular friction member assembly, annular circumferentially continuous facing members overlying said arcuate segmental bodies, said facing members being made of carbon composite material, friction portions of said facing members located in a heat-swept area, torque transmitting portions of said facing members radially spaced from said friction portions and fastening means connecting said facing members to said arcuate segmental bodies at said torque transmitting portions.
Claim 2
Dependent Claim
90 words
An annular friction member assembly for a brake or clutch mechanism comprising a plurality of arcuate segmental bodies of heat absorbing material spaced apart around the annular friction member assembly, annular circumferentially continuous facing members overlying said arcuate segmental bodies, said facing members being made of carbon composite material, friction portions of said facing members located in a heat-swept area, torque transmitting portions of said facing members radially spaced from said friction portions and fastening means connecting said facing members to said arcuate segmental bodies at said torque transmitting portions.
Claim 3
Dependent Claim
24 words
An annular friction member assembly according to claim 1 wherein reinforcing members overlie said facing members in a supporting relationship with said fastening means.
Claim 4
Dependent Claim
27 words
An annular friction member assembly according to claim 2 wherein said fastening means are rivets extending through and connecting said reinforcing members, facing members and arcuate bodies.
Claim 5
Dependent Claim
52 words
An annular friction member assembly according to claim 3 wherein said facing members have driving lugs with edges in torque transmitting relationship with other brake parts and a pair of said reinforcing members disposed at said each of edges for distributing the stresses over said torque transmitting portion of said facing members.
Claim 6
Dependent Claim
50 words
An annular friction member assembly according to claim 4 wherein said reinforcing members are plates of steel overlying the faces of said facing members on both sides to provide added support to said facing members and additional bearing area to prevent failure from torque forces transmitted by said facing members.
Claim 7
Dependent Claim
83 words
An annular friction member assembly for a brake or clutch mechanism comprising a plurality of arcuate bodies of heat absorbing material, facing members overlying said arcuate bodies, said facing members being made of laminations of sheets of pyrolized cloth and carbonaceous filler material, friction portions of said facing members located in a heat-swept area, torque transmitting portions of said facing members radially spaced from said friction portions and fastening means connecting said facing members to said arcuate bodies at said torque transmitting portions.
Claim 8
Dependent Claim
83 words
An annular friction member assembly for a brake or clutch mechanism comprising a plurality of arcuate bodies of heat absorbing material, facing members overlying said arcuate bodies, said facing members being made of laminations of sheets of pyrolized cloth and carbonaceous filler material, friction portions of said facing members located in a heat-swept area, torque transmitting portions of said facing members radially spaced from said friction portions and fastening means connecting said facing members to said arcuate bodies at said torque transmitting portions.
Claim 9
Dependent Claim
61 words
An annular friction member assembly according to claim 6 wherein said sheets of pyrolized cloth and filler material are circumferentially extending strips laid up in overlapping relationship with one end of each strip forming a portion of one face of said facing member and the other end of said strip forming a portion of an opposite face of said facing member.
Claim 10
Dependent Claim
29 words
An annular friction member assembly according to claim 6 wherein said heat absorbing material of said arcuate bodies is beryllium having high heat absorbing properties in relation to weight.
Claim 11
Dependent Claim
40 words
An annular friction member assembly according to claim 8 wherein reinforcing members of high strength metal overlie said facing members and are in engagement with said fastening means for providing increased bearing area and added support to said facing members.
References Cited (Backward Citations)
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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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |