US3872954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch and brake assembly
Assignee: Case LLC
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Filing: 1974-04-19
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Granted: 1975-03-25
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Expires: 1994-04-19
Abstract
Abstract A clutch and brake assembly having a housing enclosing a driving member and a driven member with interposed clutch plates. A clutch control member moves the driven member out of driven relation with the driving member, and a brake member is supported on the housing that has a conically-shaped brake surface which engages a conically-shaped brake surface on the driven member. The brake member is subjected to fluid pressure for its braking action, and springs are in contact with the brake member for releasing it from the braking position with the driven member. A power-take-off shaft is in driving relation with the driven member.
Inventors
- 👤 Leroy A Nordstrom
- 👤 Peter D Ruffalo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:29
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; F16D67/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
241 words
A clutch and brake assembly comprising a housing, a driving member rotatably mounted in said housing and including a set of clutch plates, a driven member rotatably mounted in said housing and including a set of clutch plates movable into and out of driving contact with said driving member clutch plates for rotating said driven member in unison with said driving member, a clutch control member movably mounted on said driven member for moving said clutch plates into contact with each other to effect said driving contact, a brake member non-rotatably disposed in said housing adjacent said driven member, said driven member and said brake member each having a conically shaped surface faced toward each other and being positioned to contact each other when said brake member is moved toward said driven member and thereby restrain said driven member against rotation, said brake member being movably mounted on said housing for axial movement only and relative to the center longitudinal axis of said conically shaped surface, and said housing and said brake member having annular surfaces defining a fluid tight annular pocket for receiving fluid under pressure to axially move said brake member into braking contact with said driven member, and a plurality of springs spaced around said brake member and secured with said housing for yieldingly urging said brake member away from said driven member to release the braking force when the fluid under pressure is released from said pocket.
Claim 2
Dependent Claim
241 words
A clutch and brake assembly comprising a housing, a driving member rotatably mounted in said housing and including a set of clutch plates, a driven member rotatably mounted in said housing and including a set of clutch plates movable into and out of driving contact with said driving member clutch plates for rotating said driven member in unison with said driving member, a clutch control member movably mounted on said driven member for moving said clutch plates into contact with each other to effect said driving contact, a brake member non-rotatably disposed in said housing adjacent said driven member, said driven member and said brake member each having a conically shaped surface faced toward each other and being positioned to contact each other when said brake member is moved toward said driven member and thereby restrain said driven member against rotation, said brake member being movably mounted on said housing for axial movement only and relative to the center longitudinal axis of said conically shaped surface, and said housing and said brake member having annular surfaces defining a fluid tight annular pocket for receiving fluid under pressure to axially move said brake member into braking contact with said driven member, and a plurality of springs spaced around said brake member and secured with said housing for yieldingly urging said brake member away from said driven member to release the braking force when the fluid under pressure is released from said pocket.
Claim 3
Dependent Claim
69 words
The clutch and brake assembly as claimed in claim 1, wherein said clutch control member and said brake member each are in nature of piston members and each have annularly shaped grooves for receiving fluid under pressure and thereby be moved to their respective operative positions, and springs operative on each of said clutch control member and said brake member to yieldingly urge them to their respective inoperative positions.
Claim 4
Dependent Claim
67 words
The clutch and brake assembly as claimed in claim 1, including an output shaft in rotatable driving relation with said driven member, said clutch control member being an annularly shaped piston mounted on said output shaft and on said driven member for rotation therewith, whereby said brake member restrains the rotation of said output shaft and said clutch control member in addition to restraining said driven member.
Claim 5
Dependent Claim
60 words
The clutch and brake assembly as claimed in claim 1, wherein said housing includes said annularly shaped pocket spaced from said driven member, said brake member being disposed in the space between said driven member and said annularly shaped pocket and including a cylindrically shaped extension slidably disposed in said annularly shaped pocket and being fluid tight with said housing.
Claim 6
Dependent Claim
59 words
The clutch and brake assembly as claimed in claim 4, including a plurality of bolts spaced around said brake member and extending therethrough in the direction away from said driven member and being threaded into said housing for restraining said brake member in rotational movement relative to said housing, and said springs being compression springs mounted on said bolts.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |