Fluid tight geophone case

Details Fluid tight geophone case Fluid tight geophone case

1977-05-23

1978-10-24

Moskowitz, Nelson

Communications: electrical

Selective

Interrogation response

G01V 116

Patent

active

041224337

ABSTRACT:
A fluid tight geophone case having a case nose having an interior cavity for receiving the geophone to be enclosed and a mounting means for receiving an elongated spike wherein the case nose includes a threaded collar and indentation in the collar for receiving a first O-ring seal, a case top which is tapered having a hollowed-out central area, a small passageway at the top which is a restriction in the form of a cone with base directed toward the central area and a large opening at the bottom which is internally threaded to mate with the case nose and having a slot to receive the first O-ring seal, a tapered compression cone having thin side walls, a small tapered end having an aperture which is formed in an inverted cone forming a grommet cavity with the passageway of the cone, a shaped cavity in the interior of the compression cone and a large opening at the other end with an annular shaped slot formed around the outer periphery of the end to receive a second O-ring seal and a yieldable grommet located in the grommet cavity to clamp and seal against a cable passing through the grommet passageway is shown.

REFERENCES:
patent: 3930218 (1975-12-01), Hall, Jr.
patent: 3931453 (1976-01-01), Hall, Jr.
patent: 3956575 (1976-05-01), Sutherland

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