Coating apparatus – With heat exchange – drying – or non-coating gas or vapor... – Plural treatments
Patent
1976-12-08
1978-07-25
McIntosh, John P.
Coating apparatus
With heat exchange, drying, or non-coating gas or vapor...
Plural treatments
118 69, 118405, 118420, 118DIG19, B05C 1900
Patent
active
041023005
ABSTRACT:
A metal wire to be coated with thermoplastic material is advanced at high speed, e.g. of 100 meters per minute, through a codirectionally moving mass of thermoplastic particles after having been heated to a temperature high enough to cause adhesion of these particles to the wire. The mass is mechanically entrained in a treatment chamber by an endless belt or the like at a speed close enough to that of the wire to hold the velocity difference therebetween below a threshold value, such as 30 meters per minute, above which an abrasive effect sets in which tends to detach already adhering particles from the wire. Upon exiting from the treatment chamber, the wire is reheated to fuse these particles into a continuous envelope and is then subjected to an electrostatic flocking operation for studding the envelope with radially projecting cellulosic fibers forming a velvety coating thereon.
REFERENCES:
patent: 2581938 (1952-01-01), Swanson et al.
patent: 3045640 (1962-07-01), Hill et al.
patent: 3389010 (1968-06-01), Burch
patent: 3476081 (1969-11-01), Facer et al.
patent: 3503778 (1970-03-01), Corbett et al.
patent: 3962990 (1976-06-01), Phipps et al.
Guignard Claude
Robert Philippe
Stagoll Francis
Cableries de Brugg S.A.
McIntosh John P.
Ross Karl F.
S.A. des Cableries & Trefileries de Cossonay
Societe d'Exploitation des Cables Electriques
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