Drive system for a positive displacement pump

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12253071
APP PUB NO 20240125313A1
SERIAL NO

18537182

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Importance

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Abstract

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A drive system for a pump includes a housing and a fluid displacer and a reciprocator configured to mechanically displace the fluid displacer through respective suction strokes. The housing and fluid displacer define an internal pressure chamber configured to be filled with a working fluid having a charge pressure. The internal pressure chamber is configured such that the working fluid exerts the charge pressure on the fluid displacer during both the suction stroke and a pressure stroke of the fluid displacer.

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Patent Owner(s)

Patent OwnerAddress
GRACO MINNESOTA INC88 11TH AVENUE NE MINNEAPOLIS MN 55413-1829

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Collins, Adam K Brooklyn Park, US 16 119
Earles, Jeffrey A Lakeville, US 22 242
Hines, Bradley H Andover, US 66 732
Koehn, Brian W Minneapolis, US 31 202
Scheierl, Paul W Circle Pines, US 24 179

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