US3595353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Couplings with stationary spring and fluid motor
Assignee: Allied Products Corp
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Filing: 1969-06-11
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Granted: 1971-07-27
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Expires: 1989-06-11
Abstract
Abstract A shaft is rotatably journaled through a stationary annular housing. Two sets of friction clutch plates are disposed on opposite sides of the stationary annular housing and are rotatable with the shaft when disengaged. A pair of annular pistons are slidable within circular chambers defined on opposite sides of the stationary housing, with fluid pressure being selectively applied to the annular pistons such that one of the pistons compresses and engages one set of the friction clutch plates. A number of rigid connecting members connect the two annular pistons such that only one set of the friction clutch plates are engaged at a time.
Inventors
- 👤 Jene A Beneke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:54
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/08; F16D25/082; F16D25/10; F16D67/00; F16D67/02; F16D67/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A low inertia clutch comprising: a rotatable shaft, a housing stationary disposed about said shaft and slidably carrying a pair of annular pistons concentrically disposed about said shaft, a plurality of interconnecting bolts spaced about said annular pistons and rigidly interconnecting said pistons, spring means disposed about said bolts for normally biasing one of said pistons away from said housing, two sets of friction clutch surfaces carried about said shaft, each of said sets of clutch surfaces being disposed adjacent one of said annular pistons, and bearings disposed between said friction clutch surfaces and said annular piston means for selectively directing fluid pressure against one of said annular pistons to counteract said spring means to force said piston against the adjacent clutch surfaces.
Claim 2
Dependent Claim
123 words
A low inertia clutch comprising: a rotatable shaft, a housing stationary disposed about said shaft and slidably carrying a pair of annular pistons concentrically disposed about said shaft, a plurality of interconnecting bolts spaced about said annular pistons and rigidly interconnecting said pistons, spring means disposed about said bolts for normally biasing one of said pistons away from said housing, two sets of friction clutch surfaces carried about said shaft, each of said sets of clutch surfaces being disposed adjacent one of said annular pistons, and bearings disposed between said friction clutch surfaces and said annular piston means for selectively directing fluid pressure against one of said annular pistons to counteract said spring means to force said piston against the adjacent clutch surfaces.
Claim 3
Dependent Claim
38 words
The low inertia clutch of claim 1 and further comprising a stationary spider adapted to engage one of said sets of friction clutch surfaces and a rotatable spider adapted to engage said second set of friction clutch surfaces.
Claim 4
Dependent Claim
14 words
The low inertia clutch of claim 1 includes bearings for rotatably supporting said shaft.
Claim 5
Dependent Claim
124 words
A low inertia clutch comprising: a rotatable shaft, a housing disposed about said shaft and slidably carrying a pair of annular pistons concentrically disposed about said shaft, interconnecting means spaced about said annular pistons and extending through said housing for rigidly interconnecting said pistons, springs disposed about said interconnecting means for normally biasing one of said pistons away from said housing, two sets of fricTion clutch surfaces carried about said shaft, each of said sets of said clutch surfaces being disposed adjacent one of said annular pistons, and means for selectively directing fluid pressure through said housing against the inner surface of one of said annular pistons to counteract said springs to force said piston outwardly from said housing against the adjacent clutch surfaces.
Claim 6
Dependent Claim
124 words
A low inertia clutch comprising: a rotatable shaft, a housing disposed about said shaft and slidably carrying a pair of annular pistons concentrically disposed about said shaft, interconnecting means spaced about said annular pistons and extending through said housing for rigidly interconnecting said pistons, springs disposed about said interconnecting means for normally biasing one of said pistons away from said housing, two sets of fricTion clutch surfaces carried about said shaft, each of said sets of said clutch surfaces being disposed adjacent one of said annular pistons, and means for selectively directing fluid pressure through said housing against the inner surface of one of said annular pistons to counteract said springs to force said piston outwardly from said housing against the adjacent clutch surfaces.
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |