Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-06-07
2009-06-09
Budd, Mark (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S327000
Reexamination Certificate
active
07545082
ABSTRACT:
An ultrasonic sensor device includes an ultrasonic transducer and a hollow case. The ultrasonic transducer includes a tubular housing having a bottom, a piezoelectric element and a vibrating surface. The piezoelectric element is fixed to an inner surface of the bottom of the tubular housing. The vibrating surface is an outer surface of the bottom of the tubular housing. The hollow case includes an opening surface, through which the hollow case receives the ultrasonic transducer such that the vibrating surface is externally exposed. The ultrasonic sensor limits an impact due to a collision by an object from being transmitted to the vibrating surface by use of a filter, which is located over the vibrating surface.
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German Office Action dated Apr. 18, 2008 issued in correcsponding German Application No. 10 2006 026 247.6-35 with English translation.
Canadian Office Action dated Feb. 16, 2009, issued in counterpart Canadian Application No. 2,549,704.
Budd Mark
Denso Corporation
Nixon & Vanderhye PC
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