Grounding system

Electricity: conductors and insulators – Earth grounds

Reexamination Certificate

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Details

C174S007000, C174S00500R

Reexamination Certificate

active

11009300

ABSTRACT:
Exemplary embodiments provided herein may include segmented grounding system, including a bit including a coupling portion at a first end, and a generally tapered second end, a shaft with a first end configured to couple to the coupling portion of the bit, and a second end comprising a receiving structure, and a tool configured to couple to the receiving structure of the second end of the shaft.

REFERENCES:
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patent: 938137 (1909-10-01), Goetz
patent: 2065184 (1936-12-01), Heinrich
patent: 3548069 (1970-12-01), Watanabe
patent: 3716649 (1973-02-01), Smith et al.
patent: 4577053 (1986-03-01), Kies
patent: 4626330 (1986-12-01), Farmer
patent: 4688969 (1987-08-01), Bruser et al.
patent: 5148641 (1992-09-01), Rushing et al.
patent: 5653069 (1997-08-01), Dziedzic
patent: 6234260 (2001-05-01), Coast et al.
patent: 2002/0018698 (2002-02-01), Lolli et al.
patent: 2000195580 (2000-07-01), None

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