Coating processes – Interior of hollow article coating – Rotating the article
Patent
1991-05-24
1993-04-13
Jones, W. Gary
Coating processes
Interior of hollow article coating
Rotating the article
118 68, 118215, 118306, 118317, 118DIG10, 427591, B05D 722
Patent
active
052021602
ABSTRACT:
Apparatus for internally coating a pipe, comprising electric heating means heating a pipe as it is internally spray coated, a plurality of first rollers mounted on a first rotatable shaft having an inlet end proximate the heating means and an outlet end spaced from the heating means, and a plurality of second rollers mounted on a second rotatable shaft parallel to the first shaft and having an inlet end adjacent the heating means. Each second roller is spaced from and adjacent to a corresponding first roller in a paired relationship to thereby define a nesting groove located above the gap between each set of paired rollers. Motive means rotates the shafts and the mounted rollers to rotate the pipe within the nesting grooves of adjacent pairs of rollers. Axial advancing means longitudinally advances the pipe through the heating means and sequentially along the nesting grooves of adjacent pairs of rollers. A movable holdback means is located on the outlet side of the heating means for restraining the advancement of the pipe to a predetermined rate of speed sufficient to insure application of a uniform thin coating of coating material on the pipe internal surface, thereby overcoming thermal and magnetic effects of the heating means which would otherwise advance the pipe faster than the speed of the axial advancing means.
REFERENCES:
patent: Re24852 (1960-08-01), Armstrong et al.
patent: 2822291 (1958-02-01), Hahn
patent: 2845366 (1958-07-01), Schroeder
patent: 3007810 (1961-11-01), Hobrock
patent: 3063860 (1962-11-01), Gemmer
patent: 3158499 (1964-11-01), Jenkin
patent: 3207618 (1965-09-01), De Hart
patent: 3218184 (1965-11-01), Lemelson
patent: 3359943 (1967-12-01), Briggs et al.
patent: 3394450 (1968-07-01), Gill et al.
patent: 3405000 (1968-10-01), Jacobson
patent: 3532531 (1970-10-01), Stallard
patent: 3654895 (1972-04-01), Bloom et al.
patent: 3814616 (1974-06-01), Kondo et al.
patent: 3974306 (1976-08-01), Inamura et al.
patent: 3982050 (1976-09-01), Kato et al.
patent: 4071641 (1978-01-01), Susai
patent: 4076136 (1978-02-01), Jenkin
patent: 4122798 (1978-10-01), Gibson
patent: 4169906 (1979-10-01), Hallstrom et al.
patent: 4174410 (1979-11-01), Smith
patent: 4197336 (1980-04-01), Savchenko et al.
patent: 4243699 (1981-01-01), Gibson
patent: 4302482 (1981-11-01), Heck
patent: 4426569 (1984-01-01), Miller et al.
patent: 4490411 (1984-12-01), Feder
Kolaga David M.
Schuppe James L.
Friedman Charles K.
Inductametals Corporation
Jones W. Gary
LandOfFree
Holdback control in apparatus for coating the internal surfaces does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Holdback control in apparatus for coating the internal surfaces , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Holdback control in apparatus for coating the internal surfaces will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1154159