US3554090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure actuated motor
Assignee: Individual
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Filing: 1969-04-04
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Granted: 1971-01-12
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Expires: 1989-04-04
Abstract
Abstract This invention relates to a fluid pressure actuated motor. More particularly, the invention relates to a fluid pressure actuated motor having a crankshaft within a closed housing and a plurality of bellows, each of the bellows having a connecting rod extending therefrom and connected to the crankshaft, including valve means communicating fluid pressure to the interior of the bellows and exhausting fluid pressure from the exterior of the bellows during one-half of a cycle and communicating fluid pressure to the exterior of the bellows and exhausting the bellows, during the other half of the cycle.
Inventors
- 👤 Arthur G Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:01
CPC Classifications
F; F03; F03C; F03C7/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
216 words
A fluid pressure actuated motor comprising: a closed housing having a flUid port therein; a crankshaft positioned within said housing having a plurality of crank arms, said housing and crankshaft arranged for rotation relative to each other; a plurality of bellow members positioned within said housing, each of said bellow members having an inner end and an outer end, the outer end being affixed to said housing; a bellows plate member affixed to the inner end of each of said bellows member; a connecting rod rigidly extending from each of said bellows plate members and each being rotatably received by a crank arm of said crankshaft; valve means having an inlet port and an exhaust port, the inlet port being connected to a fluid pressure source and the exhaust being connected to a fluid discharge; and manifold means connecting said valve means to the interior of said bellows, said valve means connecting said inlet port with said manifold means and said exhaust port with said port in said housing during 180* of rotation of said crankshaft and housing relative to each other and connecting said exhaust port with said manifold means and said inlet port with said port in said housing during the subsequent 180* of rotation of said crankshaft and housing relative to each other.
Claim 2
Dependent Claim
216 words
A fluid pressure actuated motor comprising: a closed housing having a flUid port therein; a crankshaft positioned within said housing having a plurality of crank arms, said housing and crankshaft arranged for rotation relative to each other; a plurality of bellow members positioned within said housing, each of said bellow members having an inner end and an outer end, the outer end being affixed to said housing; a bellows plate member affixed to the inner end of each of said bellows member; a connecting rod rigidly extending from each of said bellows plate members and each being rotatably received by a crank arm of said crankshaft; valve means having an inlet port and an exhaust port, the inlet port being connected to a fluid pressure source and the exhaust being connected to a fluid discharge; and manifold means connecting said valve means to the interior of said bellows, said valve means connecting said inlet port with said manifold means and said exhaust port with said port in said housing during 180* of rotation of said crankshaft and housing relative to each other and connecting said exhaust port with said manifold means and said inlet port with said port in said housing during the subsequent 180* of rotation of said crankshaft and housing relative to each other.
Claim 3
Dependent Claim
140 words
A fluid pressure actuated motor according to claim 1 wherein said housing includes a cylindrical opening therein concentric with said crankshaft and wherein said valve means includes a cylindrical valve block rotatably received in said opening in said housing, said valve block having opposed semicircular port recesses therein in a plane perpendicular the cylindrical axis, said valve means exhaust port communicating with one of said port recesses and said inlet port communicating with the other, said housing fluid port communicating with valve block semicircular port recesses alternately as said valve block and said housing rotate relative to each other and said manifold means communicating with said valve block semicircular port recesses alternately as said valve block and said housing rotate relative to each other, said housing fluid port and said manifold communicating at all times with opposite semicircular port recesses.
Claim 4
Dependent Claim
68 words
A fluid pressure actuated motor according to claim 1 wherein said connecting rod rigidly extending from all except one of said bellows plates is in the form of a pair of spaced-apart paralleled connecting rods, each connecting rod of each pair being equally spaced from the midpoint of its respective bellows plate, and each connecting rod of each pair rotatably receiving a crank arm portion of said crankshaft.
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |