Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor
Reexamination Certificate
2008-05-06
2008-05-06
Koczo, Jr., Michael (Department: 3746)
Pumps
Expansible chamber type
Having pumping chamber pressure responsive distributor
C092S171100
Reexamination Certificate
active
07367789
ABSTRACT:
A pressure enclosure includes a first component having an opening, a second component coupled to the first component in a position over the opening, a third component positioned between the first and second components and covering the opening, and a load chamber defined by a space between the second and third components and configured such that pressure in the load chamber biases the third component against the first component to seal the opening. The pressure enclosure may be a cylinder of a pump for pressurizing fluid or gas, with the first component a cylinder body, the second component an end cap and the third component a valve body, with the load chamber biasing the valve body against the cylinder body.
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Flyer, Specifications for Model No. TF-375UH, Gardner Denver Water Jetting Systems, Inc., Houston, Texas, no date, two pages.
Callahan Shawn M.
Hashish Mohamed A.
Kostohris Kraig T.
Madden Katherine M.
Mordre Sigurd C.
Flow International Corporation
Koczo, Jr. Michael
Seed Intellectual Property Law Group PLLC
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