B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
219/4, 117/56, 3
B05B 7/20 (2006.01)
Patent
CA 1039127
ABSTRACT OF THE DISCLOSURE A system for coating work pieces with particulate material is disclosed. A predetermined quantity of the particulate coating material is encapsulated per unit length of a polyethylene tape. The encapsulating tape is then moved at a controlled rate past a stripping station where the particulate material is stripped from the encapsulated tape and entrained in a gaseous stream. The gaseous stream injects the particulate material into a chamber having an open outlet in which the particulate material is both heated and accelerated to a high velocity for impacting a work piece and thus form a coating. In one embodiment of the invention, the particulate material is encapsulated in a plurality of discrete pockets, each containing a measured quantity of the particulate material. The particulate material is stripped from the package by pneumatic pressure and injected in the combustion chamber in timed sequence with ignition of a charge of combustible gases. In another embodiment of the invention, the particulate material is encapsulated in a continuous tubular system, and is continuously stripped from the tape and fed into a chamber in which the gases and particles are continually heated by combustion or an electric arc. In either embodiment, the particulate material may be stripped from the encapsulating tape either by pneumatic pressure or by mechanical means, or by a combination of both.
230304
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