MULTIPORT UNDERWATER SOUND TRANSDUCER
Assignee
IMAGE ACOUSTICS, INC., A MA CORP.
Filed
Dec 6, 1990
Granted
Feb 2, 1993
Location
MARSHFIELD MA US
Abstract
A multiport underwater sound transducer including a hollow resilient housing enclosing a volume with at least two ported resonant chambers and a transduction driver disposed within the volume with opposite sides of the driver driving the two chambers. The two ports are set to resonate at slightly different frequencies and the tranducer proudces an additive output at frequencies between the two slightly different frequencies due to phase reversals of oppositely phased sound waves.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jun 12, 1991
Rescinded
May 19, 1992
Duration
11 months
Inventor
- 1JOHN L. BUTLER
Record Details
- Patent number
- US 5184332
- Application
- 07623342
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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