Measuring and testing – Instrument proving or calibrating – Fluid pressure
Patent
1993-12-29
1997-09-09
Chilcot, Richard
Measuring and testing
Instrument proving or calibrating
Fluid pressure
73168, 251 3001, 251 26, F16K 3112
Patent
active
056658982
ABSTRACT:
A method and apparatus are disclosed for testing the operation of solenoids in a safety system by bypassing the solenoid operated pilot valve and applying a pneumatic control source to the system being tested through a bypass line while demonstrating the operation of the solenoid operated pilot valve for such a system using a test pressure source and a test input through the testing system. The system thereby permits continued operation of the process system while verifying proper operation of the safety system.
REFERENCES:
patent: 4343454 (1982-08-01), Kure-Jensen et al.
patent: 4896101 (1990-01-01), Cobb
Drake Larry Lee
Leung Peter Yau-kwong
Mangan Richard Thomas
Smith Martin James
Stanley Richard Arthur
Atlantic Richfield Company
Chilcot Richard
Felber Joseph L.
Rogers Joseph E.
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