US3572983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-operated motor
Assignee: GERMANE CORP
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Filing: 1969-11-07
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Granted: 1971-03-30
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Expires: 1989-11-07
Abstract
Abstract A fluid-operated motor of the radial valve type, the motor having a hydraulically balanced and actuated valve-seating mechanism equally responsive to reversed motor-operating fluid flow and a positive circulation lubrication system providing controlled lubrication at all wear points during operation of the motor.
Inventors
- 👤 Hugh L Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0088; F04C2/00; F04C2/08; F04C2/10; F04C2/103; F04C2/104; F16; F16D; F16D3/00; F16D3/16; F16D3/18; F16D3/185
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
403 words
A reversible fluid-operated motor of the radial valve type comprising: a generally cylindrically shaped housing; a valve-housing portion connected to said cylindrically shaped housing, said valve-housing portion including fluid inlet and outlet ports; an output shaft mounted in said housing for rotation about a longitudinal axis; a displacement mechanism having expanding and contracting cells responsive to motor operating fluid; a main drive member connecting said displacement mechanism with said output shaft whereby movement generated in said displacement mechanism in response to motor-operating fluid is transmitted to said output shaft; a valve mounted in said valve-housing portion for rotation about its longitudinal axis, said valve having a plurality of fluidconducting passages, alternate of the passages being in fluid communication with inlet fluid and other alternate passages being in fluid communication with outlet fluid, said valve positioned in said valve-housing portion separating inlet fluid from outlet fluid, said valve having a valve-seating mechanism confronting surface and an opposed valve plate confronting surface transverse to the longitudinal axis thereof; a valve plate positioned between said displacement mechanism and said valve, said valve plate having a plurality of fluidconducting passages therein in fluid communication with valve passages and displacement mechanism cells, the passages adapted to conduct operating fluid to and from displacement mechanism cells in a predetermined sequence, said valve plaTe having a transverse valve-confronting surface in tight sealing engagement with the valve plate confronting surface of said valve; a valve drive member connecting said valve with said displacement mechanism providing synchronous rotation therewith; a valve-seating mechanism, having a transverse valve-confronting surface, mounted in said valve-housing portion for axial movement therein and with the valve-confronting surface adjacent the valve-seating mechanism confronting surface of said valve, said valve-seating mechanism biased urging the valve-confronting surface thereof in tight sealing engagement with the valve-seating mechanism confronting surface, said valve-seating mechanism separating inlet operating fluid from outlet operating fluid at the valve-confronting surface thereof, the valve-confronting surface including; an annular inner groove in fluid communication with operating fluid; an annular outer groove in fluid communication with operating fluid; and a middle bearing land separating and sealing the inner groove from the outer groove and separating and sealing inlet fluid from outlet fluid whereby inlet operating fluid in communication with one of said inner and outer grooves, which fluid is under pressure and positioned between said valve seating mechanism and said valve, urges said valve in sealing engagement with said valve plate.
Claim 2
Dependent Claim
403 words
A reversible fluid-operated motor of the radial valve type comprising: a generally cylindrically shaped housing; a valve-housing portion connected to said cylindrically shaped housing, said valve-housing portion including fluid inlet and outlet ports; an output shaft mounted in said housing for rotation about a longitudinal axis; a displacement mechanism having expanding and contracting cells responsive to motor operating fluid; a main drive member connecting said displacement mechanism with said output shaft whereby movement generated in said displacement mechanism in response to motor-operating fluid is transmitted to said output shaft; a valve mounted in said valve-housing portion for rotation about its longitudinal axis, said valve having a plurality of fluidconducting passages, alternate of the passages being in fluid communication with inlet fluid and other alternate passages being in fluid communication with outlet fluid, said valve positioned in said valve-housing portion separating inlet fluid from outlet fluid, said valve having a valve-seating mechanism confronting surface and an opposed valve plate confronting surface transverse to the longitudinal axis thereof; a valve plate positioned between said displacement mechanism and said valve, said valve plate having a plurality of fluidconducting passages therein in fluid communication with valve passages and displacement mechanism cells, the passages adapted to conduct operating fluid to and from displacement mechanism cells in a predetermined sequence, said valve plaTe having a transverse valve-confronting surface in tight sealing engagement with the valve plate confronting surface of said valve; a valve drive member connecting said valve with said displacement mechanism providing synchronous rotation therewith; a valve-seating mechanism, having a transverse valve-confronting surface, mounted in said valve-housing portion for axial movement therein and with the valve-confronting surface adjacent the valve-seating mechanism confronting surface of said valve, said valve-seating mechanism biased urging the valve-confronting surface thereof in tight sealing engagement with the valve-seating mechanism confronting surface, said valve-seating mechanism separating inlet operating fluid from outlet operating fluid at the valve-confronting surface thereof, the valve-confronting surface including; an annular inner groove in fluid communication with operating fluid; an annular outer groove in fluid communication with operating fluid; and a middle bearing land separating and sealing the inner groove from the outer groove and separating and sealing inlet fluid from outlet fluid whereby inlet operating fluid in communication with one of said inner and outer grooves, which fluid is under pressure and positioned between said valve seating mechanism and said valve, urges said valve in sealing engagement with said valve plate.
Claim 3
Dependent Claim
18 words
The fluid-operated motor of claim 1 wherein said valve-seating mechanism lands and grooves are substantially circular and concentric.
Claim 4
Dependent Claim
122 words
The fluid-operated motor of claim 2 wherein said valve-seating mechanism valve-confronting surface includes; an inner bearing land adjacent said inner groove; an inner sealing land adjacent said inner groove and sandwiching said inner groove between said inner bearing land and said inner sealing land; a second inner groove adjacent said inner sealing land and sandwiched between said inner sealing land and said middle bearing land; a second outer groove adjacent said middle bearing land; an outer sealing land adjacent said second outer groove, sandwiching said second outer groove between said middle bearing land and said outer sealing land; and an outer bearing land adjacent said outer groove and sandwiching said outer groove between said outer sealing land and said outer bearing land.
Claim 5
Dependent Claim
69 words
The fluid-operated motor of claim 3 including: a substantially circular inner sealing ring therefrom between with said inner bearing land and positioned radially inwardly concentric said valve-seating mechanism and said valve housing; and a substantially circular outer sealing ring positioned radially outwardly from said outer bearing land between said valve-seating mechanism and said valve housing, said inner and outer sealing rings adapted to separate inlet and outlet operating fluid.
Claim 6
Dependent Claim
31 words
The fluid-operated motor of claim 4 wherein said inner and outer rings are resilient and provide sealing of inlet and outlet operating fluid during axial movement of said valve seating mechanism.
Claim 7
Dependent Claim
37 words
The fluid-operated motor of claim 1 wherein said valve plate includes a plurality of valve-balancing ports spaced between the fluid-conducting passage thereof, each of said valve-balancing ports including bearing surfaces therein having an operating fluid-receiving groove therearound.
Claim 8
Dependent Claim
161 words
The fluid-operated motor of claim 1 wherein: said cylindrically shaped housing includes a motor lubrication system adapted to provide lubrication fluid to said motor including a plurality of fluid-conducting passages in fluid communication with the motor portions in communication with lubricating fluid and with the outlet port thereof; said valve includes a plurality of lubrication fluid-conducting passages in fluid communication with the lubrication system passages in said housing; said valve-seating mechanism valve confronting surface thereof includes a middle groove positioned in said middle bearing land, the groove in fluid communication with the pLurality of lubrication fluid conducting passages in said valve whereby fluid under pressure is conducted from said middle groove through said motor for lubrication thereof and then conducted outwardly from said motor through the lubrication system passages thereof to the outlet port thereof; and a fluid-metering notch providing fluid conducting means from the fluid inlet port of said motor to the middle groove of said valve-seating mechanism valve-confronting surface.
Claim 9
Dependent Claim
123 words
The fluid-operated motor of claim 7 including: a first lubrication fluid conducting passage in fluid communication with said inlet port disposed in the valve housing portion thereof; a second lubrication fluid conducting passage in fluid communication with said outlet port disposed in the valve-housing portion thereof, each of which first and second lubrication fluid conducting passages are in fluid communication with the lubrication system fluid conducting passage in said housing; and a pressure-responsive check valve interposed in each of said first and second lubrication fluid conducting passages whereby fluid from the lubrication system fluid conducting passages of said housing flows therefrom through the outlet port of said motor and whereby inlet fluid flows from the inlet port of said motor though said valve.
References Cited (Backward Citations)
US2956512A
Cited
US3289542A
Cited
US3270683A
Cited
US3391608A
Cited
US3452680A
Cited
US3452543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |