Apparatus for individual isolation of hydraulically actuated val
Apparatus for providing a gaseous pressure pulse
Apparatus for well logging telemetry
Assembly of solenoid-controlled pilot-operated valve
Autoclosing flow-control valve
Automatic discharge valve for liquids
Automatic flow control water tap with manual control function
Automatic flush actuation apparatus
Automatic flush actuation apparatus
Automatic flush actuation apparatus
Automatic flush actuation apparatus
Automatic flush actuation apparatus
Automatic flushing device for urinal
Automatic mixing faucet
Automatic proximity faucet with override control system and...
Automatically operating valve for regulating water flow and fauc
Auxiliary controlled valve disposed in a drilling string
Axial valve
Bag diaphragms and bag diaphragm operated air dampers
Bathroom flushers with novel sensors and controllers