Ultrasonic transceiver and ultrasonic clearance sonar using...

Details Ultrasonic transceiver and ultrasonic clearance sonar using... Ultrasonic transceiver and ultrasonic clearance sonar using...

2005-04-05

2005-04-05

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S334000

Reexamination Certificate

active

06876127

ABSTRACT:
In an ultrasonic transceiver, an inner housing has a bottom portion, a first tubular side wall extending from one end surface of the bottom portion and a first flange portion formed on an outer peripheral portion of the first tubular side wall. The bottom portion and first tubular side wall provide a tubular cavity formed therebetween, and the piezoelectric member is mounted on the one end surface of the bottom portion in the tubular cavity. An outer housing has a second tubular side wall coaxially arranged around the outer peripheral portion of the first tubular side wall with a predetermined gap therebetween. The second tubular side wall is provided with one end portion which is opposite to one end surface of the first flange portion and contacted thereto. A first absorption member is inserted in the gap between the first tubular side wall and the second tubular side wall.

REFERENCES:
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patent: 5446332 (1995-08-01), Rapps et al.
patent: 5457352 (1995-10-01), Muller et al.
patent: 6250162 (2001-06-01), Amaike et al.
patent: 20010010169 (2001-08-01), Watarai
patent: 1-190098 (1989-07-01), None
patent: 9-284896 (1997-10-01), None
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patent: 2001-078296 (2001-03-01), None
patent: 2002-209294 (2002-07-01), None

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