Valves and valve actuation – Fluid actuated or retarded – Piston type expansible chamber reciprocating valve actuator
Patent
1996-04-12
1999-07-20
Chambers, A. Michael
Valves and valve actuation
Fluid actuated or retarded
Piston type expansible chamber reciprocating valve actuator
251 58, 251285, F16K 31165
Patent
active
059246715
ABSTRACT:
A rotary valve actuator and linkage provide an actuator having a tubular housing with end caps and a piston that is moved by fluid pressure against a compression spring. A rolling diaphragm is used to bias the piston. A pair of ports are provided on opposite sides of the housing and a linkage having two arms is interconnected with the piston through the ports. The linkage is coupled to a rotary valve shaft and linear movement of the piston causes rotational movement of the shaft. The linkage includes two separate arms and a centerpiece. The arms and the centerpiece interengage each other at angled surfaces that force the centerpiece and the arms into radial engagement with the shaft when axial compression is provided to the arms and centerpiece to force them toward each other.
REFERENCES:
patent: 350460 (1886-10-01), Leslie
patent: 2358186 (1944-09-01), Pond
patent: 2839319 (1958-06-01), Hobart
patent: 2856214 (1958-10-01), Schrimshaw
patent: 3104592 (1963-09-01), Sheesley
patent: 3261266 (1966-07-01), Ledeen et al.
patent: 3709106 (1973-01-01), Shafer
patent: 3727523 (1973-04-01), Gulick
patent: 3801062 (1974-04-01), Arn et al.
patent: 3985151 (1976-10-01), Smith
patent: 4187764 (1980-02-01), Cho
patent: 4345850 (1982-08-01), Baumann
patent: 5305987 (1994-04-01), Baumann
Chambers A. Michael
Fisher Controls International Inc.
LandOfFree
Rotary valve actuator and linkage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary valve actuator and linkage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary valve actuator and linkage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1315342