Self priming pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8182200
APP PUB NO 20080089778A1
SERIAL NO

11904974

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A self-priming centrifugal pump comprises a centrifugal impeller (19) arranged in a pumping chamber (9) for transferring liquid from an inlet (5) to an outlet (7) of the chamber, a diaphragm (21) arranged downstream of the impeller for providing priming, and a drive means (25) for driving the diaphragm with reciprocating motion during priming. The diaphragm and the drive means are arranged so that a pressure increase downstream of the impeller after priming causes a change in the neutral position of the diaphragm, which then causes disengagement of the drive means. The drive means may comprises a cam and cam follower arrangement or a crank and connecting arm arrangement.

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First Claim

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Patent Owner(s)

  • ITT MANUFACTURING ENTERPRISES, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cox, Stephen Coventry, GB 26 106

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