US3576106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Vickers Inc
•
Filing: 1968-11-14
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Granted: 1971-04-27
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Expires: 1988-11-14
Abstract
Abstract A plurality of pressure energy-translating devices each of which is comprised of a variable hydraulic pump driving a hydraulic motor, the outputs of which are connected to a common workload to be driven by the same; and, means for controlling the pressure output of the pumps whereby the driving motors each assume half of the common workload.
Inventors
- 👤 Harry J Nowicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/472; B; B62; B62D; B62D11/00; B62D11/02; B62D11/06; B62D11/10; B62D11/14; B62D11/18; F16H61/44; F16H61/456; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19014
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
A pressure energy-translating system for driving a machine comprising: a plurality of power transmissions, each having a variable displacement fluid pump driving a fluid motor said motor generating a mechanical output in response to the operating pressure of said pump; means connecting said mechanical outputs to said machine for simultaneous driving of the same; actuator means directly actuated by the difference between the operating pressures of said fluid pumps for controlling the displacement of one of said pumps to increase or decrease the operating pressure of said one pump to a value equal to the operating pressure of the other of said pumps, whereby the mechanical output of each motor is of the same magnitude.
Claim 2
Dependent Claim
115 words
A pressure energy-translating system for driving a machine comprising: a plurality of power transmissions, each having a variable displacement fluid pump driving a fluid motor said motor generating a mechanical output in response to the operating pressure of said pump; means connecting said mechanical outputs to said machine for simultaneous driving of the same; actuator means directly actuated by the difference between the operating pressures of said fluid pumps for controlling the displacement of one of said pumps to increase or decrease the operating pressure of said one pump to a value equal to the operating pressure of the other of said pumps, whereby the mechanical output of each motor is of the same magnitude.
Claim 3
Dependent Claim
147 words
A pressure energy translating system as described in claim 1 wherein said one pump is connected to one of said fluid motors in a closed circuit including a first high-pressure conduit so that the pump delivers high-pressure fluid to drive the said one fluid motor; wherein said other pump is connected to the other of said fluid motors in a closed circuit including a second high-pressure conduit so that said other pump delivers high-pressure fluid to drive said other fluid motor; wherein said actuator means comprises an enclosed housing having a bore with a pressure-responsive piston reciprocally mounted therein forming a pair of pressure chambers on opposite sides thereof, one of which is directly connected to said first high-pressure conduit, the other directly connected to said second high-pressure conduit; and means for varying the displacement of said one pump in response to the position of said piston.
Claim 4
Dependent Claim
22 words
A pressure energy-translating system as described in claim 2 wherein said displacement varying means is connected to one side of said piston.
Claim 5
Dependent Claim
62 words
A pressure energy-translating system as described in claim 3 wherein said opposite sides of said piston have pressure-responsive areas, exposed to their corresponding pressure chambers, which are of an equal magnitude whereby an increase in said second high-pressure conduit will create a pressure differential across said piston to shift the position of the same for varying the displacement of said one pump.
Claim 6
Dependent Claim
29 words
A pressure energy translating system as described in claim 4 wherein said increase in said Second high-pressure conduit results in an increase of the displacement of said one pump.
Claim 7
Dependent Claim
19 words
A pressure energy-translating system as described in claim 5 wherein the displacement of said other pump is manually operated.
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |