LandOfFree - US Patents - Listing for Pumps,Expansible chamber type

Pumps – Expansible chamber type – Having separate noncyclic valve

Rotary screw machine with two intermeshing gate rotors and two i

Pumps – Expansible chamber type – Pumping member position controlled port

Rotary type fluid energy convertor

Pumps – Expansible chamber type – Mechanically actuated distributor

Rotary valve and piston pump assembly and tank dispenser...

Pumps – Expansible chamber type – Having pulsation dampening fluid receiving space

Rotary vane hydraulic power device

Pumps – Expansible chamber type – Having pulsation dampening fluid receiving space

Rotary vane type of pump with elongated damping chambers

Pumps – Expansible chamber type – Having separate noncyclic valve

Rotary vane variable capacity compressor

Pumps – Expansible chamber type – Plural pumping chambers

Rotatably driven positive displacement pump

Pumps – Expansible chamber type – Relatively movable serial distributors

Rotating piston for ball and seat valve assembly and downhole pu

Pumps – Expansible chamber type – Valved piston

Rotating plunger for sucker rod pump

Pumps – Expansible chamber type – Moving cylinder

Rotating-cylinder compressor

Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed

Rotor axis aligned tube and outlet for a peristaltic pump system

Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed

Rotor for peristaltic pump

Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed

Rotor machine

Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed

Rotor machine