Title:
ACTUATOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO2004023227
Kind Code:
A3
Abstract:
A valve actuator control device adapted to control the position of a valve actuator by means of solenoid valves, in which if the actuator position deviates from a desired position, but remains within a predetermined distance from said desired position, the control device is adapted to only return the actuator to the desired position after a delay period, thereby to increase the life span of said solenoid valves.
Inventors:
BUNYARD ADAM (GB)
Application Number:
PCT/GB2003/003872
Publication Date:
December 29, 2004
Filing Date:
September 03, 2003
Export Citation:
Assignee:
FORAC LTD (GB)
BUNYARD ADAM (GB)
BUNYARD ADAM (GB)
International Classes:
G05B19/00; G05B19/19; G05B19/44; (IPC1-7): G05B19/04; G05B19/43; G05B19/44; G05B19/46
Foreign References:
| US20020005501A1 | 2002-01-17 | |||
| EP0040075A1 | 1981-11-18 | |||
| US3731176A | 1973-05-01 |
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