Electrostatic coating apparatus

Details Electrostatic coating apparatus Electrostatic coating apparatus

2011-08-23

2011-08-23

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Electrostatic type

C239S696000

Reexamination Certificate

active

08002208

ABSTRACT:
A housing member includes a main housing body and an intermediate tube provided around the outer periphery of the main housing body. Located in a front portion of the main housing body is an atomizer including an air motor and a rotary atomizing head, while located in a rear portion of the main housing body is a high voltage generator to apply a high voltage to paint through the air motor. A multitude of hollow cavities are uniformly formed in the intermediate tube over the entire outer surface thereof by the use of through holes opened through the intermediate tube. A cover member is fitted on the outer surface of the intermediate tube in contact with the intermediate tube, thereby intensifying electric field strength in outer corner portions of the hollow cavities to prevent deposition of charged paint particles.

REFERENCES:
patent: 5156336 (1992-10-01), Hammond et al.
patent: 7143963 (2006-12-01), Tani et al.
patent: 2004/0016832 (2004-01-01), Schroeder et al.
patent: 4 74555 (1992-06-01), None
patent: 8 332418 (1996-12-01), None
patent: 10 109054 (1998-04-01), None
patent: 2001 113207 (2001-04-01), None
U.S. Appl. No. 11/916,499, filed Dec. 4, 2007, Yamada.
U.S. Appl. No. 11/908,425, filed Sep. 12, 2007, Yamada, et al.

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