Cable seal unit for earth-boring drill strings

Details Cable seal unit for earth-boring drill strings Cable seal unit for earth-boring drill strings

1975-12-05

1977-12-13

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277110, 339 94R, F16J 1506

Patent

active

040625516

ABSTRACT:
The unit comprises a hollow cylindrical shell in the wall of which is formed an aperture through which an electrical cable passes. The cable thus passes from the ground surface on the outside of the drill string, but enters into the interior of the drill string through the aperture and continues to the bottom of the drill string inside the drill string. The aperture around the cable is sealed to withstand the high pressures present in the interior of the drill string.

REFERENCES:
patent: 2091054 (1937-08-01), Petrie
patent: 2312579 (1943-03-01), O'Brien
patent: 2533897 (1950-12-01), Reddock
patent: 3113999 (1963-12-01), Heikkinen
patent: 3490775 (1970-01-01), Henshaw
patent: 3879097 (1975-04-01), Oertle

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