Patent US3835971A successfully refreshed from Google Patents.
US3835971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid operated clutch and brake
Assignee: EW Bliss Co Inc
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Filing: 1973-08-29
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Granted: 1974-09-17
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Expires: 1993-08-29
Abstract
Abstract A press drive mechanism is disclosed having brake and clutch disc assemblies concentric with respect to the output shaft of the mechanism, and a concentric fluid operated piston-cylinder assembly for alternately actuating the brake and clutch mechanisms. Air actuated and hydraulic fluid actuated piston and cylinder arrangements are disclosed, and an arrangement is disclosed for incremental rotation of the output shaft when the brake mechanism is actuated.
Inventors
- 👤 E Spanke
- 👤 L Carrieri
- 👤 M Francey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:20
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; F16D67/04; B; B30; B30B; B30B15/00; B30B15/10; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D59/00; F16D59/02; F16D65/00; F16D65/78; F16D65/84; F16D65/853
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
277 words
A press drive mechanism comprising, a housing, shaft means extending through said housing and having opposite ends, bearing means within said housing supporting said shaft means for rotation relative to said housing about an axis, a flywheel at one end of said housing and having a first portion extending into the corresponding end of said housing and surrounding an axial portion of said shaft means, bearing means between said housing and first portion of said flywheel supporting said flywheel for rotation relative to said housing and shaft means, clutch disc means cooperatively supported relative to said shaft means and said first portion of said flywheel, brake disc means, cooperatively supported relative to said housing and said shaft means, said brake disc means being axially spaced from said clutch disc means in the direction from said one end of the housing toward the other, fixed abutment means on said shaft means between said clutch disc means and brake disc means, and clutch and brake actuating means, said actuating means including axially opposed disc engaging members movable in axially opposite directions to alternately displace said clutch disc means and said brake disc means in the corresponding direction toward said fixed abutment means, and said actuating means further including fluid actuated piston and cylinder means including piston means and cylinder means, said piston means surrounding said shaft means and fixed with respect thereto at the end of the shaft means corresponding to said one end of said housing, and said cylinder means being interconnected with said disc engaging members and axially displaceable in opposite directions relative to said piston means to move said disc engaging members in said opposite directions.
Claim 2
Dependent Claim
277 words
A press drive mechanism comprising, a housing, shaft means extending through said housing and having opposite ends, bearing means within said housing supporting said shaft means for rotation relative to said housing about an axis, a flywheel at one end of said housing and having a first portion extending into the corresponding end of said housing and surrounding an axial portion of said shaft means, bearing means between said housing and first portion of said flywheel supporting said flywheel for rotation relative to said housing and shaft means, clutch disc means cooperatively supported relative to said shaft means and said first portion of said flywheel, brake disc means, cooperatively supported relative to said housing and said shaft means, said brake disc means being axially spaced from said clutch disc means in the direction from said one end of the housing toward the other, fixed abutment means on said shaft means between said clutch disc means and brake disc means, and clutch and brake actuating means, said actuating means including axially opposed disc engaging members movable in axially opposite directions to alternately displace said clutch disc means and said brake disc means in the corresponding direction toward said fixed abutment means, and said actuating means further including fluid actuated piston and cylinder means including piston means and cylinder means, said piston means surrounding said shaft means and fixed with respect thereto at the end of the shaft means corresponding to said one end of said housing, and said cylinder means being interconnected with said disc engaging members and axially displaceable in opposite directions relative to said piston means to move said disc engaging members in said opposite directions.
Claim 3
Dependent Claim
72 words
The drive mechanism according to claim 1, wherein said cylinder means is fluid actuated to move one of said disc engaging members to displace said clutch disc means in the direction toward said abutment means, and said clutch and brake actuating means further includes means to bias said cylinder means to move the other of said disc engaging members to displace said brake disc means in the direction toward said abutment means.
Claim 4
Dependent Claim
26 words
The drive mechanism according to claim 2, wherein said biasing means includes spring means disposed between said one disc engaging member and said fixed abutment means.
Claim 5
Dependent Claim
67 words
The drive mechanism according to claim 3, wherein said piston means includes at least two piston discs axially spaces apart along said shaft means to define a chamber and said cylinder means includes a cylinder disc dIsposed in said chamber, said shaft means including an internal fluid passageway connectable to a source of operating fluid and leading to said chamber on one side of said cylinder disc.
Claim 6
Dependent Claim
54 words
The drive mechanism according to claim 4, wherein said one portion of said flywheel surrounds said cylinder means and has an axially outer end with respect to said one end of the housing, the end of said shaft means corresponding to said one end of the housing projecting axially outwardly beyond said flywheel end.
Claim 7
Dependent Claim
78 words
The drive mechanism according to claim 4, wherein said housing is provided with inlet and outlet passages for circulation of cooling and lubricating liquid, and said shaft means includes internal passages for distributing said liquid and including first passage means communicating with said inlet passage, second passage means leading from said first passage means and opening to said brake disc means, and third passage means leading from said first passage means and opening to said clutch disc means.
Claim 8
Dependent Claim
42 words
The drive mechanism according to claim 1, and means independent of said clutch and brake actuating means for rotating said brake disc means and thus said shaft means when said brake disc means are in operable engagement with said fixed abutment means.
Claim 9
Dependent Claim
67 words
The drive mechanism according to claim 1, wherein said brake disc means includes concentric interposed first and second brake disc elements, means supporting said first elements on said shaft means for rotation therewith and means supporting said second elements relative to said housing means, said means supporting said second elements being selectively rotatable relative to said housing, and means for imparting rotation to said rotatable support means.
Claim 10
Dependent Claim
65 words
The drive mechanism according to claim 8, wherein said rotatable support means is annular gear means supported in said housing for rotation concentric with said shaft means, and said rotation imparting means includes drive gear means in meshing engagement with said annular gear means and rotatable to impart rotation to said annular gear means to rotate said second brake disc elements relative to said housing.
Claim 11
Dependent Claim
36 words
The drive mechanism according to claim 9, and second brake disc means between said housing and rotatable support means to restrain rotation of said rotatable support means, and means to release said second brake disc 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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |