Auxiliary knob for gas valve to annunciate open condition

Details Auxiliary knob for gas valve to annunciate open condition Auxiliary knob for gas valve to annunciate open condition

F - Mech Eng,Light,Heat,Weapons

16

K

116/77

F16K 37/00 (2006.01)

Patent

CA 1293159

ABSTRACT OF THE DISCLOSURE An electro-mechanical auxiliary knob structure, releasably attachable to a rotatable knob of a valve, to annunciate an open condition of a valve operated thereby. The auxiliary knob pivots relative to its attachment structure to switch electric circuitry carried within the knob to annunciation of last knob motion in the direction causing valve opening. The auxiliary knob is particularly adapted for use on valves of compressed gas tanks used in gas welding.

536420

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