Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 367/161
Name: Communications, electrical: acoustic wave systems and devices > Signal transducers > Underwater type > Piezoelectric > Bending type > Multimorph
Description: Subject matter having two piezoelectric elements so joined and oriented relative to one another that one expands while the other contracts to produce a bending-type stress in the composite structure.










Patents under this class:

Patent Number Title Of Patent Date Issued
7069795 Sensor using electro active curved helix and double helix Jul. 4, 2006
6784600 Ultrasonic membrane transducer for an ultrasonic diagnostic probe Aug. 31, 2004
6278658 Self biased transducer assembly and high voltage drive circuit Aug. 21, 2001
6076629 Low frequency flextensional acoustic source for underwater use Jun. 20, 2000
5949741 Dual-section push-pull underwater projector Sep. 7, 1999
5926439 Flextensional dual-section push-pull underwater projector Jul. 20, 1999
5856956 Piezoelectric acoustic transducer Jan. 5, 1999
5852589 Low cost composite transducer Dec. 22, 1998
4999819 Transformed stress direction acoustic transducer Mar. 12, 1991
4709359 End weighted reed sound transducer Nov. 24, 1987
4547870 Velocity hydrophone Oct. 15, 1985
4471475 Single element cantilever mounted shear wave transducer Sep. 11, 1984
4326155 Shockwave probe Apr. 20, 1982
4013992 Diver's piezoelectric microphone with integral AGC preamplifier Mar. 22, 1977











 
 
  Recently Added Patents
Mobile terminal based on W-CDMA system having receive diversity function and system thereof
Sacrificial spacer approach for differential source/drain implantation spacers in transistors comprising a high-k metal gate electrode structure
Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods
Method and apparatus to select a profile of a digital communication line
Systems, computer programs, and methods for controlling costs of a healthcare practice
Data distribution unit for vehicle entertainment system
(4939
  Randomly Featured Patents
Linked heart jewelry
Ski edge tuning tool
Former board arrangement in a web-fed rotary newspaper printing press
Microwave plasma processing device, plasma processing method, and microwave radiating member
Container and lid
Insulated integral electroluminescent lighting system
Method and system for participant automatic re-invite and updating during conferencing
Interactive system for compositional morphing of music in real-time
Landscape edging
Disc device with shutter to block insertion of a disk