Method and means for improving and increasing the reliability of hydraulic and pneumatic multicircuit control systems
Abstract
Abstract THE PRESENT INVENTION RELATES TO METHOD AND MEANS FOR IMPROVING AND INCREASING THE RELIABLITY OF HYDRAULIC AND PNEUMATIC MULTICIRCUIT CONTROL SYSTEMS, IN PARTICULAR UPON FAILURE OF A RESPECTIVE CIRCUIT IN SUCH SYSTEMS, THE INPUT CIRCUIT WHEN THE SYSTEM BECOMES INOPERATIVE, RELEASING SGNALS FOR AN UNCOUPLING OR DISCONNECTING OPERATION OF THE INPUT CIRCUIT, AND AUTOMATICALLY EFFECTUATING A CHANGEOVER TO AN AUXILIARY CIRCUIT SYSTEM. THE INVENTION FURTHER RELATES TO ADJUSTING THE DRIVES OPERATED BY A FLUID MEDIUM, E.G., ACTING ON PISTONS, LINEAR AS WELL AS ROTARY MOTORS, WHICH ARE ACTUATED THROUGH CONTROL SLIDE VALVE AGGREGATES OR UNIT WHICH ARE PRESENT AT LEAST IN A DUAL ARRANGEMENT. THE DUALITY INCLUDES DUAL ENERGY SUPPLY, AS WELL AS DOUBLE-ACTING SIGNAL CIRCUIT SYSTEM, THE OPERATIONAL ELEMENTS THEREOF BEING USED FOR THE TRANSFORMATION OF SIGNALS. THE MECHANICAL INPUT SIGNAL AND THE FEEDBACK OF THE OUTPUT SIGNAL ARE APPLIED SIMUTANEOUSLY AND ARE SUBSTANTIALLY OF THE SAME MAGNITUDE WITH RESPECT TO THE CONTROL SLIDE VALVE AGGREGATES ARRANGED IN MULTIPLE CIRCUITRIES.
Inventors
- 👤 Kurt Redeker
Bibliographic Details
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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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |