Coating apparatus – With means to apply electrical and/or radiant energy to work... – With electromagnetic and/or electrostatic removal of...
Patent
1977-01-17
1977-12-06
Combs, E. M.
Coating apparatus
With means to apply electrical and/or radiant energy to work...
With electromagnetic and/or electrostatic removal of...
10 10P, 10 86A, 118308, 118317, B23G 900, B05B 100, B05B 714
Patent
active
040608689
ABSTRACT:
Apparatus and process for applying locking patches of resilient, heat softenable resin to internally threaded articles having openings at both ends, in which the threaded portions of the articles, heated to a temperature above the softening point of the resin to be applied, are moved on a conveyor as a uniform succession at a uniform continuous speed in a path for application of particles of the resin with the openings at the ends of the articles substantially uncovered, a stream of resin particles entrained in a gaseous jet is directed by a resin particle stream guide through the openings in successive moving articles against threaded areas of the articles where the particles adhere and melt to form locking patches, flow of the gaseous jet is controlled relative to movement of a repeating feature of the articles on the conveyor to supply the stream of resin particles when the stream guide is in, and to interrupt the stream of particles when it is out of particle applying relation to the articles, and a suction device is applied adjacent the upper openings in the articles during powder application to improve flow of the resin particles and to draw off resin particles which have passed through the articles and preferably also to keep the resin particle supply system clear.
In a preferred system, the guide is moved into and out of stream directing relation to successive articles on the conveyor and is moved along with successive articles when in stream directing relation to such articles for a time to deposit a thickness of resin to give desired locking ability, the in and out movement of the stream guide being controlled relative to movement of a repeating feature of the articles, and the conveyor is a pair of spaced belts on which hex headed fasteners are arranged in flat to flat continuous succession with their axes in generally up and down position and with the lower openings of the fasteners left uncovered by the space between the belts.
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patent: 3452714 (1969-07-01), Burke et al.
patent: 3491721 (1970-01-01), Gill et al.
patent: 3894509 (1975-07-01), Duffy et al.
patent: 3896760 (1975-07-01), Duffy
patent: 3991704 (1976-11-01), Hulstein et al.
patent: 3995586 (1976-12-01), Crose et al.
Axvig Maynard Arnold
Franco Jose Asuncion
Combs E. M.
Megley Richard B.
Pollard Benjamin C.
USM Corporation
White Vincent A.
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