Electrical shield for a welding apparatus

Details Electrical shield for a welding apparatus Electrical shield for a welding apparatus

2005-03-01

2005-03-01

Ngo, Hung V. (Department: 2831)

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

C174S050590

Reexamination Certificate

active

06861586

ABSTRACT:
A welding apparatus having a metal enclosure and a plastic end panels affixed to the enclosure to contain therein the various electrical components of the welding apparatus. There is an internal negative electrical stud within the metal enclosure that has a high voltage applied to the stud. A protective, non-conductive electrical shield is located between the electrical stud and other conductive components within the welding apparatus to prevent arcing between the electrical stud and those conductive components as well as to prevent arcing between the electrical stud and the metal enclosure itself.

REFERENCES:
patent: 3636637 (1972-01-01), Keith
patent: 3749967 (1973-07-01), Douglas-Hamilton et al.
patent: 5129843 (1992-07-01), Bowsky et al.
patent: 5742000 (1998-04-01), Stevens
patent: 6075226 (2000-06-01), Kishbaugh
patent: 6193548 (2001-02-01), Sigl et al.
patent: 6225596 (2001-05-01), Chandler et al.
patent: 450800 (1935-11-01), None

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