Leader cable anchor for a geophone

Details Leader cable anchor for a geophone Leader cable anchor for a geophone

1991-07-22

1992-07-14

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

181122, G01V 116

Patent

active

051309548

ABSTRACT:
In accordance with illustrative embodiments of the present invention as disclosed herein, a leader cable is anchored to a post on the upper end of a geophone case having a spike on its lower end that penetrates the ground to hold the case in an upright postion. The anchor is formed by a continuous stress member in the cable that is looped around the post to isolate the electrical conductors in the cable from strains imposed on the cable. The post can be an integral part of a block located at the upper end of the case, or a bobbin that is captured by a cap that closes the top of the case.

REFERENCES:
patent: 2783298 (1957-02-01), Brown et al.
patent: 3332057 (1967-07-01), Pavey, Jr.
patent: 3786410 (1974-01-01), Hazelhurst
patent: 3931453 (1976-01-01), Hall, Jr.
patent: 3932834 (1976-01-01), Sutherland
patent: 3993859 (1976-11-01), McNeel
patent: 4204188 (1980-05-01), Weichart et al.
patent: 4317185 (1982-02-01), Thigpen et al.
patent: 4438292 (1984-03-01), Woodall

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