Patent US3863548A successfully refreshed from Google Patents.
US3863548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic wheel
Assignee: Individual
•
Filing: 1973-03-15
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Granted: 1975-02-04
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Expires: 1993-03-15
Abstract
Abstract A hydraulic wheel comprises a fixed axle with a wheel journalled thereon, and a shaft eccentric to the axle which carries side by side three sleeves connected to cylinders which have their pistons pivoted to the wheel. A high-pressure conduit and a lowpressure conduit communicate with the cylinder through ports in the shaft and orifices in the sleeves and are operative to extend each cylinder and piston as the same moves within a sector disposed rearwardly with respect to the direction of rotation wheel, the extension of the pistons being operative to rotate the wheel. The arrangement represents a simplification of hydraulic wheels as compared with the prior art and the possibility of applying pressure through a greater angular range so as to improve the efficiency of the device.
Inventors
- 👤 Bertrand Vachon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:52
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/22; F03C1/24; F03C1/2407; F03C1/2415
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
238 words
A hydraulic wheel comprising: a fixed axle; a wheel journalled on said axle; a shaft eccentric to said axle extending slidably therethrough and keyed thereto against rotation; at least three cylinders each having a sleeve journalled on said shaft, all said sleeves being adjacent; a piston in each cylinder, the outer ends of said piston being pivoted to said wheel at evenly angularly spaced points thereof; a high pressure conduit and a low pressure conduit in said shaft; ports communicating with said conduits and opening in respectively opposite sides of said shaft; orifices in said sleeves connecting said ports to the interior of said cylinders; a flange on an end of said shaft confining said sleeves between said flange and axle; a nut threaded on said shaft for drawing said shaft and flange toward said axle; sealing means between said flange and an adjacent sleeve, between said shaft and an adjacent sleeve and between adjacent sleeves; said wheel comprising a hub journalled on said axle, a spoke section integral with said hub, an axial wall integral with said spoke section and a removable cover plate externally connected to said wall, said spoke section, wall and cover plate forming an enclosure containing said cylinders and pistons, the outer ends of said pistons being journalled on axial pins extending from said spoke section to said plate and removably supported at its opposite enDs on said spoke section and plate, respectively.
Claim 2
Dependent Claim
238 words
A hydraulic wheel comprising: a fixed axle; a wheel journalled on said axle; a shaft eccentric to said axle extending slidably therethrough and keyed thereto against rotation; at least three cylinders each having a sleeve journalled on said shaft, all said sleeves being adjacent; a piston in each cylinder, the outer ends of said piston being pivoted to said wheel at evenly angularly spaced points thereof; a high pressure conduit and a low pressure conduit in said shaft; ports communicating with said conduits and opening in respectively opposite sides of said shaft; orifices in said sleeves connecting said ports to the interior of said cylinders; a flange on an end of said shaft confining said sleeves between said flange and axle; a nut threaded on said shaft for drawing said shaft and flange toward said axle; sealing means between said flange and an adjacent sleeve, between said shaft and an adjacent sleeve and between adjacent sleeves; said wheel comprising a hub journalled on said axle, a spoke section integral with said hub, an axial wall integral with said spoke section and a removable cover plate externally connected to said wall, said spoke section, wall and cover plate forming an enclosure containing said cylinders and pistons, the outer ends of said pistons being journalled on axial pins extending from said spoke section to said plate and removably supported at its opposite enDs on said spoke section and plate, respectively.
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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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |