Fluid sprinkling – spraying – and diffusing – Electrostatic type – With electrogasdynamic generator in spray device
Patent
1985-05-29
1987-04-21
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Electrostatic type
With electrogasdynamic generator in spray device
239705, B05B 502
Patent
active
046590196
ABSTRACT:
A feed channel is provided upstream of a powder-spraying discharge opening in a spray device, with a pipe having an injector which coaxially surrounds such pipe length for the coaxial introduction of accelerating gas. Downstream of the injector an elongated guide member is present in the feed channel. In this way the complete cross-sectional shape of the feed channel is progressively changed along the longitudinal axis of the feed channel to a cross-sectional shape which is annular and has a smaller cross section of flow passage. This results in a further accelerating of the stream of powder. The guide member and the region of the wall of the feed channel which surrounds the guide member at a distance therefrom consists of an insulating material on which powder particles which move past are charged electrically by friction. As a result of the consequent increase in speed of powder particles in the feed channel coupled with the reduction in cross section of the feed channel, an enhanced electric charging of the powder particles is obtained over a shorter distance.
REFERENCES:
patent: 3819115 (1974-06-01), Soderman
patent: 4090666 (1978-05-01), Peck
patent: 4225090 (1980-09-01), Kako et al.
patent: 4289278 (1981-09-01), Itoh
patent: 4359192 (1982-11-01), Takahashi et al.
Jones Mary Beth O.
Kashnikow Andres
Ransburg-Gema AG
LandOfFree
Spray device for coating articles with 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 Spray device for coating articles with powder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spray device for coating articles with powder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-746349