UNDERWATER ACOUSTIC CONTROL SYSTEM
Assignee
Filed
Nov 29, 1973
Granted
Feb 12, 1991
Location
MD US
Abstract
An underwater acoustic control system for use in a subsurface unit receiv coded signals. A hydrophone receives the signal and enables an electronics package to supply a control pulse which could activate a switch or fire a squib. A timer is included in the package to provide a delayed turn-on of the receiver circuit for as long a period as desired.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 5, 1981
Rescinded
May 4, 1990
Duration
8 years, 6 months
Inventor
- 1RUSSELL K. KOEHLER
Record Details
- Patent number
- US 4992988
- Application
- 05421364
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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