Sucker rod pump

United States of America Patent

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Apr 14, 1992
Grant Date
N/A
app pub date
Feb 27, 1991
filing date
Feb 27, 1991

priority date (Note)
Expired

status (Latency Note)

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Abstract

A subsurface well pump is provided which is resitant to vapor locking. The pump is a reciprocating sucker rod pump which has a top inlet valve which comprises one or more hinged flapper valves.

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Patent Owner(s)

Patent Owner	Address
SHELL WESTERN E&P INC A DE CORPORATION	Not Provided

International Classification(s)

F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Brewer, James R	Bakersfield, CA	3	17

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Sucker rod pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07661365

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Patent Longevity Expired	Forward Citations

PATENT NO	5104301
SERIAL NO	07661365
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07661365

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