US Patent 7475731 Sand plunger
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Patent Inventor Names
Bruce M. Victor0
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Patent abstract
A plunger mechanism comprising radial peripheral holes extending outwardly from a center core to an outer surface through which a downhole gas may pass to clear an obstruction on the outer surface of the plunger, thereby enabling a self-cleaning action.
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US Patent 07475731 Sand plunger US Patent 7475731 Sand plunger
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Patent Number
074757310
Patent Number
74757310
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Patent Jurisdiction
Patent Number
074757310
Date of Patent
January 13, 2009
0Patent Application Number
111057530
Date Filed
April 14, 2005
0Official Website
Patent Primary Examiner
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US Patent 07475731 Sand plunger
Infobox
Is a
Patent jurisdiction
Patent number
07475731
Date of patent
January 13, 2009
Patent application number
11105753
Date Filed
April 14, 2005
Patent primary examiner
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