Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Reexamination Certificate
2005-05-24
2005-05-24
Hepperle, Stephen M. (Department: 3753)
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
C005S713000, C137S119020, C137S119090, C297S284600
Reexamination Certificate
active
06895988
ABSTRACT:
A fluid operated control valve for controlling fluid flow of a system which includes a first and a second fluid channels therein, the control valve includes: a hollow casing with closed first and second ends; a piston member slidably disposed within the casing and defining thereby within the casing a first chamber adjacent to the first end of the casing and a second chamber adjacent to the second end of the casing; a first magnet disposed adjacent the first chamber of the casing for attracting the piston member to a first terminal position; a second magnet disposed adjacent the second chamber of the casing for attracting the piston member to a second terminal position. The control valve further includes: an input port disposed adjacent to an intermediate location in the casing; a first output port disposed in the casing in fluid communication with the first chamber; a second output port disposed in the casing in fluid communication with the second chamber; wherein the control valve is adapted to alternately inflate and deflate the two fluid channels of the system through the ports in response to the reciprocal movement of the piston member. Pad systems utilizing the control valve are also disclosed.
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Grant Benton H.
Ward Kenneth A.
Grant Airmass Corporation
Hepperle Stephen M.
St. Onge Steward Johnson & Reens LLC
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