Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-02-20
2007-02-20
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S338000, C310S339000, C310S344000, C310S369000, C277S321000, C277S433000
Reexamination Certificate
active
10759670
ABSTRACT:
An o-ring sealing device, molded with an imbedded piezoelectric element, for use in vacuum systems. The imbedded element, of a circumferential length, has an oblong cross-sectional shape, the oblong shape having a pair of ends for externally connecting to a signal processor. The piezoelectric element is concentrically disposed and centrally placed within a mold cavity of a predetermined diameter. The cavity is filled with an elastic material fully encapsulating and insulating the piezoelectric element.
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Chen Chin-Chih
Tien Wei-Shin
Tseng Ming-Hung
Wang Tzu-Chan
Dougherty Thomas M.
Taiwan Semiconductor Manufacturing Co. Ltd.
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