Coupling aid for seismic cable

Communications – electrical: acoustic wave systems and devices – Signal transducers – Receivers

Reexamination Certificate

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Reexamination Certificate

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07352654

ABSTRACT:
The present invention provides a coupling device (300). The coupling device includes a collar (315, 405) defining an opening therethrough to receive a seismic sensor (305) such that the collar (315, 405) permits rotation about the seismic sensor (305) and at least three extensions (320, 410) from the collar, the extensions (320, 410) being capable of rotating with the collar (315, 405) such that any two of them may couple to the ground.

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patent: 5866827 (1999-02-01), Stewart et al.
patent: 6288972 (2001-09-01), Norris
patent: 6367211 (2002-04-01), Weener et al.
patent: 6385132 (2002-05-01), Sackett
patent: 2005/0146987 (2005-07-01), Goujon et al.
patent: 0593416 (1994-04-01), None
patent: 2446494 (1980-08-01), None
patent: WO 01/51955 (2001-07-01), None
patent: WO 02/14905 (2002-02-01), None
Gaiser, “Compensating OBC data for variations in geophone coupling,”68thAnn. Mtg., SEG, 1429-1432, 1998.

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