Controller

Details Controller Controller

1994-11-03

1996-09-17

Chambers, A. Michael

Valves and valve actuation

Fluid actuated or retarded

With mechanical movement between actuator and valve

251280, F16K 3112

Patent

active

055560725

ABSTRACT:
A controller comprises a valve body having a valve element and a valve seat defining therebetween a fluid channel openable and closable with reciprocating upward and downward movement of a valve stem, a casing fixed to an upper portion of the valve body, an operating rod provided in an upper inside portion of the casing and movable upward and downward, a drive device for moving the operating rod upward and downward, and a force transmission device provided in a lower inside portion of the casing for transmitting force acting on the operating rod to the valve stem. The transmission device comprises a conical first roller contact member extending vertically downward from a lower end of the operating rod, a second roller contact member provided at the valve stem upper end, a pair of roller support members arranged between the two contact members symmetrically with respect to the first contact member axis, a pair of rollable rollers rotatably supported by the support member at an upper portion thereof and bearing on a tapered face of the first contact member, and a pair of push rollers rotatably supported by a lower portion of the support member and bearing on a roller support upper surface of the second contact member. Each of the roller support members is supported by the casing so as to be pivotally movable about an axis on the side of the first contact member axis relative to the corresponding push roller axis.

REFERENCES:
patent: 2395223 (1946-02-01), Ingres
patent: 2539913 (1948-06-01), Koepcke
patent: 3610568 (1971-10-01), Duwe
patent: 3737142 (1973-06-01), Boswell et al.
patent: 3985151 (1976-10-01), Smith
patent: 4270398 (1981-06-01), Arnold
patent: 4278234 (1981-07-01), Baumann
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: 4871143 (1989-10-01), Baker
patent: 4875404 (1989-10-01), Aldridge
patent: 4925154 (1990-05-01), Baker
patent: 5108069 (1992-04-01), Tada
patent: 5215286 (1993-06-01), Kolenc
Ser. No. 08/434,404 Itoi, et al. filing date May 03, 1995.

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