Rotary positive displacement pump

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12140142
APP PUB NO 20240052834A1
SERIAL NO

18260531

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rotary positive displacement pump comprises a housing rotationally supporting first and second parallel and axially extending drive shafts having constantly meshing gears such that the drive shafts rotate in opposite directions. A rotor casing is connected to a front side of the housing and has axial rear and front walls and a circumferential side wall jointly defining a pumping cavity. The casing houses first and second rotors drivingly connected to the first and second drive shafts respectively. The rotors rotate in opposite directions and mutually interact to provide a positive pumping effect on fluid product entering the cavity. First and second sealing arrangements prevent leakage of fluid product from the cavity towards the rear side of the casing along the first/second drive shafts. A heating device is detachably fastened to the rear casing wall to heat the casing, the first/second sealing arrangements and/or any fluid product within the casing.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ALFA LAVAL CORPORATE AB221 00 LUND

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cargill, Simon Eastbourne, GB 5 5

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