Valves and valve actuation – Fluid actuated or retarded – With mechanical movement between actuator and valve
Patent
1997-12-31
2000-05-09
Walton, George L.
Valves and valve actuation
Fluid actuated or retarded
With mechanical movement between actuator and valve
251636, 251331, F16K 717, F16K 31122
Patent
active
060592591
ABSTRACT:
A force multiplication mechanism utilizing one or more upwardly open slotted conical disc springs to impart a highly amplified biasing force substantially at the center of the spring upon a force receiving member when the springs are oriented in an unrelieved, but loaded configuration. Two fulcrums are positioned, one each, proximate to upper and lower surfaces of the slotted disc springs. One fulcrum, a high amplification fulcrum, engages the upper surface of the disc spring in the unrelieved configuration causing the downwardly biasing force to be a multiple of the spring's rated force, exemplarily on the order of five times that rated force. A second fulcrum, a low amplification fulcrum, engages the lower surface of the disc spring and acts as a pivot point about which the spring transitions into the relieved configuration causing the downwardly biasing force to be relieved. Conversion from the force exerting configuration to the relieved configuration is achieved by applying a downwardly directed relieving force about the perimeter of the disc spring. The previously upwardly open slotted disc spring is sufficiently flexed and pivoted by the relieving force that the spring assumes a downwardly open configuration. The transition between the two configurations results from the lower, low amplification fulcrum acting as the pivot axis between the outer perimeter and the central region of the spring.
REFERENCES:
patent: 4335744 (1982-06-01), Bey
patent: 4523516 (1985-06-01), Foster et al.
patent: 4549719 (1985-10-01), Baumann
patent: 4609178 (1986-09-01), Baumann
patent: 4684103 (1987-08-01), Baumann
patent: 4729544 (1988-03-01), Baumann
patent: 4791856 (1988-12-01), Heim et al.
patent: 4875404 (1989-10-01), Aldridge
patent: 4955582 (1990-09-01), Baumann
patent: 5108069 (1992-04-01), Tada et al.
patent: 5215286 (1993-06-01), Kolenc
patent: 5253671 (1993-10-01), Kolenc
patent: 5516075 (1996-05-01), Itoi et al.
patent: 5653419 (1997-08-01), Uchisawa et al.
Gregoire Roger J.
Kaufman John C.
Szyperski Peter P.
Advanced Pressure Technology
Walton George L.
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