Gun cable termination

Claim 1

A seismic gun-cable termination for attachment to an end of a seismic cable-gun used for towing air/water guns behind a seismic vessel, the cable including a pressure hose, signal conductors and tension wire, comprising: a connector housing; a first chamber and a second separate watertight chamber in said housing; a first wall in said housing forming one end of said first chamber; a second wall in said housing spaced from said first wall and disposed between and separating said chambers and forming on one side thereof one end of said second chamber; a third wall in said housing forming the other end of said second chamber opposite said first end thereof; a hole through said first wall for receiving the end of the gun-cable to be connected inserted therethrough; fastening means for fastening the tension wires of the gun-cable to said housing within said first chamber; sealed passages through said second wall for receiving inserted therethrough individually and in sealed relationship therewith the conductors extending through said first chamber and said second chamber; underwater connectors mounted in and extending through said third wall for connection with the conductors; a central separate channel in said housing through said second chamber for receiving the pressure hose extending therethrough from said first chamber through said second and third walls; a water-repellant lubricant filling said first chamber; a hydrophobic, water-emulsifying liquid filling said second chamber; and a pressure-compensating means operatively mounted on said housing in communication with said second chamber for controlling the pressure therein.