US3841452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction plate assembly
Assignee: Motors Liquidation Co
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Filing: 1973-07-26
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Granted: 1974-10-15
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Expires: 1993-07-26
Abstract
Abstract A friction unit comprising a first series of plates faced with friction material interleaved with steel plates is selectively engaged by a hydraulically operated piston. Each of the faced plates is an assembly formed from matching discs of matted fibrous cellulosic material and is supported by a hooped onepiece wire carrier. The wire carrier is partially embedded between the discs and has radially extending portions which mesh with the splines of a support.
Inventors
- 👤 R Newsock
- 👤 W Antrim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:53
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/123; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/648; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D55/40; F16D2055/0004; F16D2055/0058; F16D2065/13; F16D2065/1304; F16D2065/1316; F16D2065/132; F16D2065/134; F16D2065/1344; F16D2065/1356; F16D2065/1368; F16D69/00; F16D69/04; F16D2069/0425; F16D2069/0483
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
131 words
A friction plate assembly for torque transmitting connection with a splined support comprising annular disc means of friction material, carrier means disposed radially with respect to said disc means for operatively connecting friction disc means to said splined support, said carrier means comprising a one-piece wire having a plurality of evenly spaced waves therein, said wire having a plurality of evenly spaced arms formed by predetermined waves in said wire which extend radially in a first direction into the friction material of said disc means, means for securing said first arms to said friction disc means, said wire further having a plurality of evenly spaced arms formed by other predetermined waves in said wire which extend radially in a second direction and into meshing engagement with the splines of the support.
Claim 2
Dependent Claim
131 words
A friction plate assembly for torque transmitting connection with a splined support comprising annular disc means of friction material, carrier means disposed radially with respect to said disc means for operatively connecting friction disc means to said splined support, said carrier means comprising a one-piece wire having a plurality of evenly spaced waves therein, said wire having a plurality of evenly spaced arms formed by predetermined waves in said wire which extend radially in a first direction into the friction material of said disc means, means for securing said first arms to said friction disc means, said wire further having a plurality of evenly spaced arms formed by other predetermined waves in said wire which extend radially in a second direction and into meshing engagement with the splines of the support.
Claim 3
Dependent Claim
129 words
A friction plate assembly for a clutch or brake unit comprising a support having a plurality of splines thereon, annular disc means of fibrous friction material, a carrier for said disc means, said carrier comprising a circular one-piece wire having a first series of identical and equally spaced arm means which extend in a first radial direction into the material of said disc means, means securing said first series of spaced arm means in the friction material of said disc means, said one-piece wire further having a second series of identical and equally spaced arm means alternately disposed with respect to said first series of arm means which extend in an opposite radial direction out of said disc means and into meshing engagement with said splines of said support.
Claim 4
Dependent Claim
129 words
A friction plate assembly for a clutch or brake unit comprising a support having a plurality of splines thereon, annular disc means of fibrous friction material, a carrier for said disc means, said carrier comprising a circular one-piece wire having a first series of identical and equally spaced arm means which extend in a first radial direction into the material of said disc means, means securing said first series of spaced arm means in the friction material of said disc means, said one-piece wire further having a second series of identical and equally spaced arm means alternately disposed with respect to said first series of arm means which extend in an opposite radial direction out of said disc means and into meshing engagement with said splines of said support.
Claim 5
Dependent Claim
206 words
A multi-plate friction unit for a power transmission comprising separate first and second relatively rotatable supports radially spaced from one another, said supports being formed with longitudinally extending splines which face each other, a first series of plate means splined to said first support, a second series of plate means interleaved with said first series of plate means splined to said second support, each plate of said second series of plate means comprising an annular disc of friction material and a corresponding carrier operatively connecting said disc To said second support, each said carrier comprising a continuous circular wire, each said wire having a first series of evenly spaced arms radially extending in a first direction and securely embedded into the friction material of a corresponding disc of said second series of plate means, each said wire further having a second series of evenly spaced arms which radially extend in a second direction and into meshing engagement with the splines of said second support to form a splined connection therewith, and motor means for applying a load to said first and second series of plate means to effect the selective engagement of said multi-plate friction unit and the driving connection of said first and second supports.
Claim 6
Dependent Claim
206 words
A multi-plate friction unit for a power transmission comprising separate first and second relatively rotatable supports radially spaced from one another, said supports being formed with longitudinally extending splines which face each other, a first series of plate means splined to said first support, a second series of plate means interleaved with said first series of plate means splined to said second support, each plate of said second series of plate means comprising an annular disc of friction material and a corresponding carrier operatively connecting said disc To said second support, each said carrier comprising a continuous circular wire, each said wire having a first series of evenly spaced arms radially extending in a first direction and securely embedded into the friction material of a corresponding disc of said second series of plate means, each said wire further having a second series of evenly spaced arms which radially extend in a second direction and into meshing engagement with the splines of said second support to form a splined connection therewith, and motor means for applying a load to said first and second series of plate means to effect the selective engagement of said multi-plate friction unit and the driving connection of said first and second supports.
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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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |