DEVICE FOR PICKING UP SOUND WAVES PROPAGATING IN WATER
Assignee
Filed
Oct 4, 1979
Granted
Sep 10, 1996
Location
VIRY CHATILLON FR
Abstract
A chain of elongate components (10, 20) are connected end-to-end. Each component (e.g. 10) comprises a sheath (1) closed at its ends filled with a dielectric liquid (e.g. kerosene). Sound detectors are located in the liquid as are electric conductors for conveying signals therefrom. The ends are closed by means including an electric connector. At least one of a pair of mating end portions includes a valve (14, 24) which releases the dielectric liquid from inside the sheath into the interstices between the mated pair. A bleed screw can be used to ensure no air remains. This arrangement minimises pressure differentials around the join between two adjacent elongate components and facilitates use of the chain at great depths.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 16, 1982
Rescinded
Oct 24, 1994
Duration
12 years, 1 month
Inventor
- 1CLAUDE BROCHARD
Record Details
- Patent number
- US 5555221
- Application
- 06084025
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
More from this assignee
IMPROVED CATALITIC SYNTHESIS OF CAGED POLYNITRAMINE COMPOUNDS
SOLID ROCKET PROPELLANT
DUAL INFRARED BAND OBJECTIVE LENS
BANDGAP RADIATION DETECTOR
METHOD OF FORMING TEXTURED HIGH-TEMPERATURE SUPERCONDUCTORS
APPARATUS FOR CONTROLLING THE POSITION AND DIRECTION OF A LASER BEAM
Related by domain
AIRBORNE RADAR JAMMING SYSTEM
BOEING, COMPANY, THE
METHOD AND APPARATUS FOR THE DETECTION OF OBJECTS USING ELECTROMAGNETIC WAVE ATTENUATION PATTERNS
JG TECHNOLOGIES LLC
OPTICAL NIGHT VISION DEVICE WITH STANDARD LIGHT INTENSIFIER
THOMSON-CSF SEXTANT
MULTIPLE INFRARED MISSILE JAMMER
LOCKHEED SANDERS INC, A DELAWARE CORPORATION
LOW OBSERVABLE WEAPON KIT
Northrop
SYSTEM FOR DETECTING RADIATION IN THE PRESENCE OF MORE INTENSE BACKGROUND RADIATION
RAMSEY ELECTRONICS, INC.