Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-02-14
2006-02-14
Budd, Mark (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S321000, C310S365000
Reexamination Certificate
active
06998759
ABSTRACT:
A motion sensing system utilizing piezoelectric laminates with predetermined surface electrode patterns disposed thereon utilizes a frequency selector to pass motion waves of predetermined frequencies and an electrical circuit for processing the electrical signals for transmission to an activating device for appropriate activation. In particular, the frequency selector is a low frequency bandpass filter for free-fall acceleration wave frequencies. By directing appropriate action, the present invention increases the applicability of the device upon which it is mounted (e.g., for military or other hostile environment use), decreases the possibility of damage, and lengthens its useful life.
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Hsieh Der-Chang
Hsu Yu-Hsiang
Huang Long-Sun
Lee Chih-Kung
Budd Mark
Lee Chih-Kung
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