Communications: electrical – Selective – Interrogation response
Patent
1977-08-11
1978-09-26
Wilbur, Maynard R.
Communications: electrical
Selective
Interrogation response
174 52R, G01V 116
Patent
active
041174496
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.
REFERENCES:
patent: 2908890 (1959-10-01), Campbell et al.
patent: 3993859 (1976-11-01), McNeel
Blum T. M.
Geo Space Corporation
Meaney, Jr. Daniel J.
Wilbur Maynard R.
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