US 5357486
ACOUSTIC TRANSDUCER
Assignee
INNOVATIVE TRANSDUCERS INC.
Filed
Dec 2, 1992
Granted
Oct 18, 1994
Location
FT. WORTH TX US
Abstract
A piezoelectric film strip is wrapped a plurality of times around a flexible inert mandrel that has standoff collars on each end. The film-wrapped mandrel is hermetically sealed inside a hollow rigid inert cylinder. Electrodes provide electrical communication with the film strip which forms the active element of the transducer. Variations in hydrodynamic pressure flex the film strip in tension to generate a voltage.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 22, 1994
Rescinded
Apr 21, 1994
Duration
1 month
Inventor
- 1RICHARD E. PEARCE
Record Details
- Patent number
- US 5357486
- Application
- 07989372
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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INNOVATIVE TRANSDUCERS INC.Back to patent indexSource: USPTO 35 USC §181 secrecy order records