Well pump
Patent
·
OSTI ID:866351
- Pasco, WA
- Chicago, IL
A well pump includes a piston and an inlet and/or outlet valve assembly of special structure. Each is formed of a body of organic polymer, preferably PTFE. Each includes a cavity in its upper portion and at least one passage 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 outlet valve block has a sliding block and sealing fit with the piston rod.
- Research Organization:
- BATTELLE MEMORIAL INSTITUTE
- DOE Contract Number:
- AC06-76RL01830
- Assignee:
- Battelle Devepment Corporation (Columbus, OH)
- Patent Number(s):
- US 4688999
- OSTI ID:
- 866351
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/417/
assembly
block
bottom
cavity
covers
disk
downwardly
extend
extend upwardly
fit
flanges
flexible
flexible seal
formed
inlet
leading
organic
organic polymer
outlet
outlet valve
passage
periphery
piston
piston rod
polymer
portion
preferably
ptfe
pump
rod
screen
sealing
sealing flange
sealing flanges
sliding
special
structure
upper
upper portion
upwardly
valve
valve assembly
valve block
valve disk
assembly
block
bottom
cavity
covers
disk
downwardly
extend
extend upwardly
fit
flanges
flexible
flexible seal
formed
inlet
leading
organic
organic polymer
outlet
outlet valve
passage
periphery
piston
piston rod
polymer
portion
preferably
ptfe
pump
rod
screen
sealing
sealing flange
sealing flanges
sliding
special
structure
upper
upper portion
upwardly
valve
valve assembly
valve block
valve disk