LandOfFree - US Patents - Listing for Pumps

Pumps – Ambulant – body supported – or with carrying handle

Natural gas processing well head pump assembly

Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor

Negative pressure supply apparatus for automobiles

Pumps – Expansible chamber type – Mechanically actuated distributor

Neutralizer valve for a downhole pump

Noise attenuator of compressor

Pumps – One fluid pumped by contact or entrainment with another – Contact or entrainment within rotary impeller

Noise control for conically ported liquid ring pumps

Pumps – One fluid pumped by contact or entrainment with another – Contact or entrainment within rotary impeller

Noise control for conically ported liquid ring pumps

Noise dampening means in refrigeration motor-compressor units an

Pumps – Processes

Noise damper for hermetic compressors

Noise damping device

Pumps – Motor driven – Electric or magnetic motor

Noise isolating rotor for air handler motor

Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor

Noise reducing compressor gasket and head assembly

Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor

Noise reducing cylinder assembly for compressor

Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor

Noise reducing wear shield for piston face

Pumps – Three or more cylinders arranged in parallel – radial – or...

Noise reduction at the second order frequency

Noise reduction in a hermetic rotary compressor

Noise reduction muffler for hermetic rotary compressor

Pumps – Motor driven – Interrelated or common lubricating or cooling means for pump...

Noise reduction using suction gas to foam oil

Pumps – Three or more cylinders arranged in parallel – radial – or...

Noise suppressing mechanism in piston-type compressor

Noise suppressor for turbo-compressor