Pumps – Expansible chamber type – Inlet and discharge distributors at opposite ends of tubular...
Reexamination Certificate
2011-06-07
2011-06-07
Freay, Charles G (Department: 3746)
Pumps
Expansible chamber type
Inlet and discharge distributors at opposite ends of tubular...
C417S557000, C137S513500
Reexamination Certificate
active
07955061
ABSTRACT:
The invention provides a priming pump comprising a deformable envelope associated with an inlet endpiece and an outlet endpiece each fitted with a moving valve member, the endpieces being arranged in such a manner that when the valve members are in the closed position, the outlet endpiece presents a leakage rate that is greater than the leakage rate of the inlet endpiece.
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Translation of the French Report (Apr. 28, 2003).
Dykema Gossett PLLC
Freay Charles G
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