Pump with a resilient seal

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9175681
APP PUB NO 20120034122A1
SERIAL NO

13265510

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A pump comprises a housing, with an interior defining a rotor path, an inlet formed in the housing at a first position on said rotor path, an outlet formed in the housing at a second position on said rotor path spaced from said first position. A rotor is rotatable in the housing with a first surface that seals against the housing. A second surface is formed on said rotor circumferentially spaced from said first surface and forms a chamber that travels around said rotor path to convey fluid from the inlet to the outlet. A resilient seal formed with the housing is located on the rotor path to prevent fluid flow from said outlet to said inlet past the seal. A passage may be provided to supply fluid to an under surface of the seal at a pressure that acts to urge the seal against the rotor.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
QUANTEX ARC LIMITEDLONDON W6 7HJ

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayes-Pankhurst, Richard Paul London, GB 18 181
Ross, Peter William Berkshire, GB 4 36

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