Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent
1974-07-29
1976-11-23
Truhe, J. V.
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
339106, 340 17R, G01V 116
Patent
active
039938590
ABSTRACT:
A rigid, durable, fluid-tight metal enclosure adapted to enclose a cylindrically shaped geophone electrically connected to a cable having a housing formed of a metal and having an open end through which a geophone is inserted and a closed end, a flexible header mounted in the housing at the open end thereof having a pair of conical shaped cable supports extending therefrom in opposite directions adapted to have a cable pass therethrough into a hollowed out central area of the header to be electrically connected to the geophone, the flexible header includes an annular shaped ring member for forming, under a clamping pressure, a fluid-tight seal between an annular shaped ring member and the housing and between the cable supports and cable and having an annular shaped lip member adapted to make yieldable engagement with the top of the geophone, a circular-shaped stress ring having a pair of opposing aligned holes and positioned in the hollowed out central area of the flexible header to enable the cable to be passed therethrough into the central area, the stress ring being capable of retaining within the center thereof the cable having a knot anchored takeout therein to prevent withdrawal of the cable through the flexible header causing an electrical disconnection of the cable from the geophone, a relatively thin electrical insulating sheet and disc insulator located between the interior walls of the housing and the exterior of the geophone, a support stud mounted through an O-ring seal in the closed end of the housing, and a clamping means for forming a clamping pressure between the header and housing.
REFERENCES:
patent: 1974297 (1934-09-01), Benander
patent: 2908890 (1959-10-01), Campbell
patent: 3119978 (1964-01-01), Sears
patent: 3445809 (1969-05-01), McLoad
Geo Space Corporation
Meaney, Jr. Daniel J.
Tone David A.
Truhe J. V.
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