Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1996-03-22
1999-02-02
Lee, Kevin
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
251 58, 13759614, 91442, F16K 31122
Patent
active
058654194
ABSTRACT:
This invention features a device for controlling the operation of a pneumatic actuator and a pneumatic actuator having such a control device. More particularly, the actuator control device of the instant invention includes a housing mounted to an actuator end cap, a solenoid valve disposed within the housing and a gas control valve that controls the pressurized gas admitted to and exhausted from the actuator for valve actuation. The gas control valve is responsive to the solenoid valve and is mounted to the housing. Preferably, the control device includes a position indication mechanism, disposed within the housing, that determines a prespecified position of the valve responsive to the movement of at least one and preferably two moveable actuator probes extending from the actuator end cap into the housing. The gas control valve is a spool valve that is pneumatically controlled by the solenoid valve. The position indication mechanism includes a mechanical switch or an inductive proximity switch, one for each actuator probe that determines the position of an end of each actuator probe that are each actuated by an end of an actuator probe as it moves within the housing responsive to the motion of the actuator.
REFERENCES:
patent: 4238109 (1980-12-01), Powers
patent: 4253640 (1981-03-01), Priese et al.
patent: 4478245 (1984-10-01), Bender
patent: 4763691 (1988-08-01), Hahmann
patent: 5263679 (1993-11-01), Bushnell
patent: 5465746 (1995-11-01), Ebbing
Marchesseault Richard R.
Nelson David C.
Lee Kevin
Worcestor Controls Licenseco, Inc.
LandOfFree
Pneumatic actuator having an end mounted control device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic actuator having an end mounted control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic actuator having an end mounted control device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1110144