Fluid handling – Processes
Reexamination Certificate
2008-05-27
2008-05-27
Lee, Kevin (Department: 3753)
Fluid handling
Processes
C137S624130, C137S624150, C137S907000
Reexamination Certificate
active
11523707
ABSTRACT:
An intermittent pressure module for controlling the position of a valve between two positions comprising diaphragm means; a plurality of ports associated with said diaphragm means for exposing said diaphragm means to a selected pressure in said first position, and ambient pressure in said second position; swing means associated with said diaphragm means and said valve means for intermittently displacing said valve means when said diaphragm means is exposed to said selected pressure in said first position and ambient pressure in said second position.
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Boehringer Laboratories,Inc. “Boehringer Suction Regulators”. 1992, pp. 1-16.
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