Valves and valve actuation – Heat or buoyancy motor actuated
Reexamination Certificate
2007-04-03
2007-04-03
Bastianelli, John (Department: 3753)
Valves and valve actuation
Heat or buoyancy motor actuated
C251S335200
Reexamination Certificate
active
11244388
ABSTRACT:
A valve for gases, liquids or powdery material, comprises a diaphragm shutter element having a central part and a peripheral edge connected, respectively, to a central support and to a peripheral support. Said supports can be displaced axially with respect to one another between a first relative end position and a second relative end position corresponding, respectively, to the open condition and to the closed condition of the valve, or vice versa. The relative displacement in the axial direction of said first and second supports is controlled by shape-memory means, preferably formed by a first shape-memory wire and a second shape-memory wire set on the two opposite faces of the diaphragm shutter element.
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Alacqua Stefano
Biasiotto Marco
Butera Francesco
Zanella Alessandro
Bastianelli John
C.R.F. Societa Consortile per Azioni
Nixon & Vanderhye P.C.
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