Valves and valve actuation – Electrically actuated valve – Having element dimensionally responsive to field
Reexamination Certificate
2007-04-03
2007-04-03
Bastianelli, John (Department: 3751)
Valves and valve actuation
Electrically actuated valve
Having element dimensionally responsive to field
C251S363000, C251S364000, C417S322000, C417S413200
Reexamination Certificate
active
10388589
ABSTRACT:
Thin chamber diaphragm-operated fluid handling devices, including thin chamber pumps and thin chamber valves, facilitate device compactness and, in some configurations, self-priming. Diaphragm actuators of the thin chamber devices either comprise or are driven by piezoelectric materials. The thinness of the chamber, in a direction parallel to diaphragm movement, is in some embodiments determined by the size of a perimeter seal member which sits on a floor of a device cavity, and upon which a perimeter (e.g. circumferential or peripheral portion) of the diaphragm actuator sits. The diaphragm actuator is typically retained in a device body between the floor seal member and another seal member between which the perimeter of the actuator is sandwiched. The devices have an input port and an output port.
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Bastianelli John
Nixon & Vanderhye P.C.
Par Technologies, LLC
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