Choke valve
Closing arrangement for ducts having large cross-sectional areas
Combination air vent/probe port and method of constructing same
Combination check valve and neutral valve assembly for use...
Combination check valve and release valve
Combination economizer valve and locking means for oxygen supply
Comparator for coded signals represented by a pressure of fluid
Compressor unloader system
Condition responsive valve construction
Condition responsive valve construction and method of making the
Control apparatus for air blast preheaters of blast furnaces
Control apparatus particularly for a plurality of compressor ble
Control damper
Control device
Control device for operation by the mouth of a handicapped perso
Control valve
Control valve
Control valve
Control valve having a disc shaped throttle
Control valve having independently driven valves