End seal assembly for tubular conduit

An end seal assembly for use in a high pressure environment, comprising:

• a body having opposite first and second ends and a passageway extending between said ends for sealably passing at least one conductor through a high pressure barrier;
• a rigid tube extending into the first end of said body, the tube having an inner end terminating in said body;
• at least one conductor carried within said tube and extending out of the inner end of said tube, through said passageway, and out of the second end of said body;
• a first end seal in said passageway at the first end of said body for sealing said tube in the passageway;
• a second end seal seated in said passageway at the second end of said body for sealing the second end of the body while allowing the conductor to pass out of the second end of the body;
• the second end seal being of a first, non-metallic material and having a through bore and opposite ends, the conductor extending through said bore in said second end seal;
• and
• epoxy material completely filling the through bore in the second end seal between the opposite ends of said through bore and bonded to the seal through bore and conductor;
• the first material having a coefficient of thermal expansion approximately equal to the coefficient of thermal expansion of the epoxy material and a bulk modulus substantially equal to the bulk modulus of the epoxy material.