Check valve having internal float

Chemical dosimeter having a constant flow air sampling pump

Chemical transfer system

Circuit arrangement for driving a reciprocating piston in a cyli

Circuit for driving linear compressor

Circulating pump unit

Circulatory assisted device with motor driven gas pump

Clutch control system for an air compressor

Combination sight glass and sump oil level sensor for a...

Combined check valve and pressure sensor

Compact helical compressor for mobile use in a vehicle

Compressed air system and method of control

Compressed air system utilizing a motor slip parameter

Compressing apparatus with extended variable capacity range and

Compression system having means for sequencing operation of comp

Compression type refrigeration device

Compressor and engine efficiency system and method

Compressor arrangement for a heat pump installation

Compressor control

Compressor control at voltage and frequency extremes of...