Electricity: motive power systems – Positional servo systems – With protective or reliability increasing features
Patent
1980-04-28
1983-01-18
Dobeck, B.
Electricity: motive power systems
Positional servo systems
With protective or reliability increasing features
318626, 361 28, G05B 2302
Patent
active
043694012
ABSTRACT:
A valve position monitoring and control system incorporates a proximity sensor positioned near a movable valve element to detect the operational position of the valve and includes circuit means coupled to a valve actuating solenoid for deactivating the solenoid in the event the valve fails to respond to command signals for positioning the valve in a predetermined position. In one embodiment, the system incorporates a pair of series connected valves used in presses which valves in turn are operated by solenoid actuated pilot valves. In the event either one of the valves do not operate either by opening within a predetermined time after actuation or closing within a predetermined time after their deactuation, the system of the present invention will not permit further operation of the valves until the system has been manually reset.
REFERENCES:
patent: 3412280 (1968-11-01), DeGrande
patent: 3778696 (1973-12-01), Walters et al.
patent: 3969664 (1923-12-01), Camilleri et al.
patent: 4032094 (1977-06-01), Morgan et al.
patent: 4198025 (1980-04-01), Lowe et al.
Fayfield Robert W.
Fontaine Kenneth B.
Dobeck B.
Scovill Manufacturing Co.
LandOfFree
Valve position monitor and control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve position monitor and control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve position monitor and control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-138669