Deep sea high pressure cable entry

Claim 1

A CABLE ENTRY DEVICE FOR USE IN SEALINGLY INTRODUCING AN ELECTRICAL CABLE THROUGH AN OPENING IN A WALL HAVING DIFFERENTIAL PRESSURES ON OPPOSITE SIDES THEREOF, WHICH COMPRISES, A CYLINDRICAL BODY MEMBER HAVING AN AXIAL BORE THERETHROUGH AND FURTHER HAVING A COUNTER BORE FORMED AT ONE END THEREOF, SAID CYLINDRICAL BODY HAVING A NECK PORTION AT ITS OTHER END FOR INSERTION THROUGH SAID OPENING IN SAID WALL, AN ANNULAR PACKING GROMMET FORMED OF A DEFORMABLE AND SUBSTANTIALLY INCOMPRESSIBLE ELASTIC MATERIAL AND HAVING AN OUTER DIAMETER SUBSTANTIALLY EQUAL TO THE DIAMETER OF SAID COUNTER BORE ANDHAVING AN AXIAL BORE FORMED THEREIN OF A DIAMETER SUBSTANTIALLY EQUAL TO THE DIAMETER OF SAID CABLE, SAID PACKING GROMETER OF SAID CABLE, PORTION OF SAID BODY MEMBER, A PACKING RETAINER HAVING AN AXIAL BORE THERETHROUGH OF A DIAMETER SUBSTANTIALLY EQUAL TO THE DIAMETER OF SAID CABLE AND FURTHER HAVING A PISTON FORMED ON ONE END THEREOF, SAID PISTON BEING SLIDEABLY RECEIVED WITHIN SAID COUNTER BORE FOR ABUTTING CONTACT WITH SAID PACKING GROMMET, SEALING MEANS POSITIONED BETWEEN AND ENGAGING THE PISTON AND THE WALL OF THE COUNTER BORE PORTION OF THE BODY MEMBER TO PREVENT FLUID LEAKAGE THEREBETWEEN, AND MEANS FOR MOVING SAID PISTON LONGITUDINALLY WITHIN SAID COUNTER BORE TO SIMULTANEOUSLY DEFORM AND RADIALLY COMPRESS THE PACKING GROMMET INTO CIRCUMFERENTIAL SEALING CONTACT WITH A COAXIAL CABLE RECEIVED.