Tribo-electric powder spray gun

Fluid sprinkling – spraying – and diffusing – Electrostatic type – Fixed member deflects exiting material

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

239690, 239706, 239600, B05B 5047

Patent

active

053440820

ABSTRACT:
A tribo-electric powder spray gun includes a diffuser for mixing powder with a conveying gas, a charging portion downstream of the diffuser, and a sprayhead at the outlet of the charging portion for dispensing the charged powder. The charging portion has an inner core removably positioned within a hollow outer cylinder with an annular gap formed between the outer cylinder and inner core providing a charging flowpath for the powder. The inner core and the outer cylinder have undulating or wavy charging surfaces made of an electrically insulating material, so that the annular gap provides a tortuous path for the powder, enhancing powder contact and the charge imparted to the powder. Grounding is provided by surface conduction of the electrically insulating contact material through a ground ring located outside the powder path at the inlet to the charging portion of gun where the greatest amount of charging occurs. By locating the ground ring outside the powder path, the ground ring is kept clean and the amount of charging surface is maximized. The inner core and the outer cylinder are longitudinally symmetrical to facilitate re-assembly.

REFERENCES:
patent: 3903321 (1975-09-01), Schaad
patent: 4135667 (1979-01-01), Benedek et al.
patent: 4214709 (1980-07-01), Scull et al.
patent: 4225090 (1980-09-01), Kako et al.
patent: 4228961 (1980-10-01), Itoh
patent: 4289278 (1981-09-01), Itoh
patent: 4316582 (1982-02-01), Kobayashi et al.
patent: 4359192 (1982-11-01), Takahaski et al.
patent: 4399945 (1983-08-01), Ruud
patent: 4401275 (1983-08-01), Ruud
patent: 4417696 (1983-11-01), Kako et al.
patent: 4615649 (1986-10-01), Sharpless
patent: 4659019 (1987-04-01), Talacko
patent: 4706890 (1987-11-01), Takacko
patent: 4747546 (1988-05-01), Talacko
patent: 4788933 (1989-01-01), Buschor
patent: 4798338 (1989-01-01), Bauch et al.
patent: 4798340 (1989-01-01), Vohringer et al.
patent: 4815666 (1989-03-01), Gacka et al.
patent: 4886215 (1989-12-01), Ruud
patent: 4921172 (1990-05-01), Belmain et al.
patent: 4966330 (1990-10-01), Loof
patent: 4979680 (1990-12-01), Bauch et al.
patent: 5002229 (1991-03-01), Schneider et al.
patent: 5011085 (1991-04-01), Loof
TRIOMATIC.RTM. Automatic Powder Spray Gun, Manual No. 37-1, copyright 1990, pp. 3 and 12.
TRIOMATIC.RTM. Generation 3 Automatic Gun Diffuser, Manual No. 37-17, copyright 1991, p. 1.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Tribo-electric powder spray gun does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tribo-electric powder spray gun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tribo-electric powder spray gun will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1324672

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.