Fluid sprinkling – spraying – and diffusing – Electrostatic type
Reexamination Certificate
2007-07-10
2007-07-10
Kaufman, Joseph A. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Electrostatic type
C239S691000, C239S704000, C239S706000, C239S708000, C361S226000, C361S227000
Reexamination Certificate
active
10638425
ABSTRACT:
A corona charge spray gun for dispensing powders for powder coatings. The spray gun includes a housing defining a chamber terminating in an outlet passageway. A high voltage electrode is mounted in the chamber spaced upstream of the outlet passageway and a ground electrode is mounted in the chamber spaced upstream from the high voltage electrode. The ground electrode is selected to have a surface area sufficiently larger than the surface area of the high voltage electrode in order to allow high voltages to be applied to the high voltage electrode without arch discharging occurring in the chamber. An inlet opens into the chamber for conducting a powder-gas mixture into the chamber and the electrodes receive cleaning gases for avoiding powder deposits on the electrodes.
REFERENCES:
patent: 3698635 (1972-10-01), Sickles
patent: 3735925 (1973-05-01), Benedek et al.
patent: 4135667 (1979-01-01), Benedek et al.
patent: 4227652 (1980-10-01), Itoh
patent: 4228961 (1980-10-01), Itoh
patent: 4747546 (1988-05-01), Talacko
patent: 4772982 (1988-09-01), Nagasaka
patent: 4805069 (1989-02-01), Nagasaka et al.
patent: 5022590 (1991-06-01), Buschor
patent: 5720436 (1998-02-01), Buschor
patent: 6254684 (2001-07-01), Borner et al.
patent: 6274202 (2001-08-01), Campbell
patent: 2722100 (1978-11-01), None
patent: 0237249 (1993-06-01), None
patent: 2029271 (1980-03-01), None
Zhang Hui
Zhu Jesse
Gorman Darren
Hill & Schumacher
Kaufman Joseph A.
Schumacher Lynn C.
The University of Western Ontario
LandOfFree
Method and apparatus for dispensing paint powders for powder... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for dispensing paint powders for powder..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for dispensing paint powders for powder... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3747187