F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/79
F15B 13/04 (2006.01) F15B 18/00 (2006.01)
Patent
CA 1334922
Several embodiments are disclosed of an automatic shutoff valve apparatus for permitting removal, repair, or replacement of a control valve from a mounting base without deactivating a complete system. In addition, a redundancy arrangement isdisclosed wherein the shutoff valve apparatus and at least two control valves are employed in parallel so that the device activated by the control valves can be maintained operative when one control valve malfunctions or is removed, repaired, or replaced.
614018
Cameron Russell John
Krape Richard P.
Winsand Robert Neil
Macrae & Co.
Ross Operating Valve Company D/b/a/ Ross Controls
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