Electrostatic paint spray gun

Details Electrostatic paint spray gun Electrostatic paint spray gun

1990-06-21

1991-11-26

Hoag, Willard

Coating apparatus

With means to apply electrical and/or radiant energy to work...

Electrostatic and/or electromagnetic attraction or...

118300, 239690, 239DIG14, 361228, B05B 500, B05B 502, H02M 710

Patent

active

050674340

ABSTRACT:
An electrostatic paint spray gun having built-in high-voltage generator that is cast into insulating material is improved in that the dielectric strength is increased in the region of that face of the insulating member that is adjacent to the charging electrode. In a first solution, the high-voltage cascade is cast such into the plastic member for this purpose that its high-voltage output is situated adjacent the input transformer, whereby a small plug tube for the stranded electrode lead is additionally co-cast into the insulating member parallel to the cascade. In a second solution, an annular gap is left free between the stranded electrode lead and the insulating member, is filled with insulating oil and is sealed with a seal.

REFERENCES:
patent: 3599038 (1971-08-01), Skidmore
patent: 4033506 (1977-07-01), Braun
patent: 4196465 (1980-04-01), Buschor
patent: 4287552 (1981-09-01), Wagner et al.
patent: 4290091 (1981-09-01), Malcolm
patent: 4323947 (1982-04-01), Huber
patent: 4441656 (1984-04-01), Huber
patent: 4572437 (1986-02-01), Huber et al.
patent: 4651932 (1987-03-01), Huber et al.
patent: 4750676 (1988-06-01), Huber et al.
patent: 4752034 (1988-06-01), Kuhn et al.
patent: 4775105 (1988-10-01), Rese

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