Wells – With eduction pump or plunger – Having liquid-gas separator
Reexamination Certificate
2007-05-08
2007-05-08
Bagnell, David (Department: 3672)
Wells
With eduction pump or plunger
Having liquid-gas separator
C166S236000, C210S760000, C210S215000, C405S128500
Reexamination Certificate
active
10794994
ABSTRACT:
A diffuser useful for sparging to remove contaminant in situ is described. The diffuser includes a first elongated member having a sidewall with a first portion of the length of the sidewall being microporous, and a second portion of the length of the sidewall having well screen sized openings with the first elongated member defining an interior hollow portion of the diffuser, a second elongated member having a second sidewall having a plurality of microscopic openings, said second member being disposed through the hollow region of said first member and a third elongated member having a third sidewall having a plurality of microscopic openings, said third member being disposed coaxial with the first and second members. An end cap is disposed to seal a first end of the third elongated member, and being in contact with the second elongated member forms a chamber. The diffuser has an inlet arrangement disposed at a second end of diffuser for supporting a first inlet fitting to coupled to an peripheral interior portion of the diffuser adjacent the first member, a second fitting to couple to the chamber, and a third fitting coupled to the third member.
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Bagnell David
Fish & Richardson P.C.
Stephenson Daniel P.
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