Valves and valve actuation – Heat or buoyancy motor actuated
Reexamination Certificate
2005-06-10
2008-09-09
Fristoe, Jr., John K (Department: 3753)
Valves and valve actuation
Heat or buoyancy motor actuated
C251S129010
Reexamination Certificate
active
07422191
ABSTRACT:
A bistable minivalve includes a movable component, an actuator that is electrostatically, magnetically, or mechanically coupled to the movable component for controllably switching the movable component between open and closed states, and a casing providing structural support. The movable component has an actuation surface [300]movably positioned in the valve conduit and a bistable element attached to the actuation surface providing mechanical stability to the open and closed states of the movable component. The bistable element may be realized as a pair of elastic buckling beams [302, 304]attached at their midpoints to opposite sides of the actuation surface. Optionally, there may also be elastic support beams [306, 308]attached at their endpoints to the actuation surface and attached at their midpoints to the elastic buckling beams.
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Accoto Dino
Brasseur Georg
Fabian Tibor
Prinz Friedrich B.
Ryu WonHyoung
Fristoe, Jr. John K
Honda Motor Co. Ltd.
Lumen Patent Firm, Inc.
The Board of Trustees of the Leland Stanford Junior University
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