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Class Information
Number: 367/165
Name: Communications, electrical: acoustic wave systems and devices > Signal transducers > Underwater type > Piezoelectric > Specific support structure
Description: Subject matter having specific means to support the piezoelectric transducer.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8639186 Telemetry conveyed by pipe utilizing specks Jan. 28, 2014
8605548 Bi-directional wireless acoustic telemetry methods and systems for communicating data along a pipe Dec. 10, 2013
8372206 High power density ultrasonic fuel cleaning with planar transducers Feb. 12, 2013
8194504 Hydrophone unit Jun. 5, 2012
8164982 Ultrasonic sensor with piezoelectric elements and acoustic matching members Apr. 24, 2012
8107323 Boomer for marine seismic survey Jan. 31, 2012
8063539 Electrostrictive drive Nov. 22, 2011
8009518 Ultrasonic sensor with piezoelectric elements and vibration isolator Aug. 30, 2011
7894307 Acoustic projector having minimized mechanical stresses Feb. 22, 2011
7872949 Vibrator array, manufacturing method thereof, and ultrasonic probe Jan. 18, 2011
7719926 Slotted cylinder acoustic transducer May. 18, 2010
7688681 Ultrasonic rod transducer Mar. 30, 2010
7609586 Acoustic projector having minimized mechanical stresses Oct. 27, 2009
7530151 Vibrator array, manufacturing method thereof, and ultrasonic probe May. 12, 2009
7483339 Acoustic projector and method of manufacture Jan. 27, 2009
7450834 Lens unit and imaging apparatus Nov. 11, 2008
7382689 Flexible hydrophone Jun. 3, 2008
7349293 Pressure control apparatus and rotation drive mechanism Mar. 25, 2008
7180225 Piezoelectric vibrator Feb. 20, 2007
7170822 Laminated piezoelectric transducer and method of manufacturing the same Jan. 30, 2007
6856580 Naval-hull mounted sonar for naval ship Feb. 15, 2005
6784600 Ultrasonic membrane transducer for an ultrasonic diagnostic probe Aug. 31, 2004
6690622 Portable remote-controlled fish locating system Feb. 10, 2004
6567342 Flared wave-guide projector May. 20, 2003
6567343 Flextensional resonant pipe projector May. 20, 2003
6545949 Axial drive resonant pipe projector (ADRPP) Apr. 8, 2003
6545948 Submersible loudspeaker Apr. 8, 2003
6483776 Seismic cable with sensor elements being heavier than the cable Nov. 19, 2002
6400649 Self biased transducer assembly and high voltage drive circuit Jun. 4, 2002
6356511 Low distortion ratio hydrophone Mar. 12, 2002
6345014 Collapsible annular acoustic transmission antenna Feb. 5, 2002
6310427 Connecting apparatus for electro-acoustic devices Oct. 30, 2001
6188647 Extension method of drillstring component assembly Feb. 13, 2001
6163505 contact member for an ultrasonic transducer Dec. 19, 2000
6151277 Hydrophone with ferroelectric sensor Nov. 21, 2000
6147932 Acoustic transducer Nov. 14, 2000
6069845 Composite marine seismic source May. 30, 2000
6018493 Sonar suspension apparatus Jan. 25, 2000
5889731 Vibration detector Mar. 30, 1999
5867451 Solid marine seismic cable assembly Feb. 2, 1999
5835454 Transducer shroud for improved transducer operation in the treatment of waste water Nov. 10, 1998
5781510 Hydrophone housing for a solid marine seismic cable Jul. 14, 1998
5778726 Device for monitoring a predetermined level of a liquid in a container Jul. 14, 1998
5755136 Device for monitoring a predetermined level of a liquid in a container May. 26, 1998
5751659 Ceramic mass loaded longitudinal vibrator May. 12, 1998
5747754 Method and apparatus for taking seismic measurements May. 5, 1998
5737279 Retractable sensor array system Apr. 7, 1998
5730025 Device for monitoring a predetermined level of a liquid in a container Mar. 24, 1998
5703836 Acoustic transducer Dec. 30, 1997
5663931 Segmentation and polarization in a hydrophone crystal Sep. 2, 1997

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