Fluid resistant geophone and cable enclosure

Abstract

A rigid, fluid resistant enclosure adapted to encase a geophone electrically connected to a cable including a housing having an open end in and inner walls defining a cavity adapted to receive a geophone encapsulated in a fluid tight membrane or boot, which membrane has a sealing ring located around the top edge of the geophone, the open end of the housing having a counterbore axially aligned with and formed into the cavity terminating in a countersink having inwardly sloping walls defining a sealing surface which communicates with the inner walls of the cavity, a flexible header positioned within the counterbore and countersink of the open end of the housing and two resilient opposed elongated cable entry means having sealing nipples adapted to have a cable extended therethrough into a hollowed out central area which is to be electrically connected to the geophone and wherein the resilient sealing nipples have a plurality of axially aligned sealing ridges extending around the interior thereof to engage with and seal against the exterior surface of a cable, the flexible header including a sealing collar which extends from the opening into the countersink and counterbore of the housing, a sealing ridge formed between the edge of the opening and interior surface of the collar with the collar terminating in a tapered edge having inwardly sloping walls which engage and seal against the inwardly sloping walls of the countersink of the housing and a circumferentially extending sealing lip located on the interior of the collar below the sealing ridge to engage the exterior surface of the membrane.