Well pump

Details Well pump Well pump

F - Mech Eng,Light,Heat,Weapons

04

B

103/41, 103/52

F04B 39/10 (2006.01) F04B 47/02 (2006.01) F04B 53/12 (2006.01)

Patent

CA 1260317

ABSTRACT A well pump includes a piston and an outlet valve assembly of special structure. Each is formed of a block of organic polymer, preferably PTFE. Each includes a cavity in its upper portion and passages leading from the cavity to the bottom of the block. A screen covers each cavity and a valve disk covers each screen. Flexible sealing flanges extend upwardly and downwardly from the periphery of the piston block. The valve block has a sliding and sealing fit with the piston rod.

491106

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