Spherical rotary machine having six rotary pistons

Spindle-motor driven pump system

Splined shaft driving arrangement

Split seal plate with integral brush seal

Split stator for motor/blood pump

Split tube centrifugal pump

Spool assembly for field adjustable column length pump systems

Spray pump with a motor driven drive rod

Spring biased check valve for an electromagnetically driven osci

Spring biased fluid pump

Spring supporting structure for reciprocating compressor

Spring supporting structure of linear compressor

Stabilizer for vertically driven pumps

Stabilizing means for free piston-type linear resonant reciproca

Stable wave motor

Stacked redundant blowers

Stand for a fluid compressor having an extending and rotating mo

Stand for a pump

Standby aquarium pump

Standing wave compressor