|4767033||Manually operated gear pump spray head|
A spray head containing a gear pump for drawing liquid from a container and forcing same out of a nozzle. The gear pump comprises a pair of operatively engaged gears each rotatable about horizontal axes transverse to the axis of the nozzle. A ratchet whee...
|4671231||Unidirectional rotary piston internal combustion engine|
The unidirectional piston internal combustion engine is composed of a stator and a rotor. Annular grooves are cut on the rotor. Each groove is partitioned with a revolving valve gate to form into one "cylinder" between the rotor and the stator. Pistons ar...
Rotary engine having an annular space formed between the housing and the rotor, the annular space being divided into an intake-compression chamber and air expansion-exhaust chamber....