Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2001-01-29
2004-04-06
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
06717332
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an apparatus for use in an application including at least one of clamping and valving.
BACKGROUND OF THE INVENTION
Known clamping and valving mechanisms include solenoids as well as piezoelectric clamps and valves. Such known clamping and valving mechanisms have several shortcomings. Solenoids require a number of components and, thus, are expensive and prone to failure. Known clamps and valves operated with piezoelectric actuators have complex designs which can not provide the performance required for many applications. More specifically, such piezoelectric clamps and valves do not provide the necessary opening displacement and/or clamping force.
SUMMARY OF THE INVENTION
An apparatus for use in an application including at least one of clamping and valving. The apparatus includes a support structure and actuator means for operating the support structure between a rest position and an actuated position. In one embodiment, the actuator means is a piezoelectric device and the support structure is a single piece which is a mechanically active element of the apparatus.
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Akhavein R. Glenn
Alexy Michael
Moler Jeff
Oudshoorn Mark
Woozley Mark
Addison Karen
Dougherty Thomas M.
Viking Technologies, L.C.
Young & Basile P.C.
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