F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 37/00 (2006.01) F16K 17/04 (2006.01)
Patent
CA 2067631
-13- ABSTRACT OF THE DISCLOSURE Method and apparatus for remotely detecting when a safety relief valve is initially opened includes a permanent magnetic field fixedly associated with the closure member and a magnetic proximity switch mounted on the housing so that initial movement of the magnetic field causes the magnetic proximity switch to close, indicating that the valve has opened. Adjustment means are provided to calibrate the position of the sensor switch so that initial movement of the closure member from the seat of less than 0.04 inches can be detected without interfering with the operation of the valve. C:\dms\mickeyh.dir\0005464.01
Eggerton Don W.
Scallan David J.
Dresser Industries Inc.
Kirby Eades Gale Baker
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