Coating processes – Roller applicator utilized
Patent
1985-08-15
1986-08-05
Beck, Shrive P.
Coating processes
Roller applicator utilized
427 34, 219121PL, 239 79, 239 81, B05B 106, B05B 124, B05D 110
Patent
active
046043063
ABSTRACT:
A high velocity gaseous jet stream which may be a cold jet stream of compressed air or a jet flame discharging from an internal burner discharges through an open slot V-shaped, U-shaped or C-shaped, or alternatively through separate circumferentially spaced parallel passages to form a volumetric zone of quiescent gas well into the main jet prior to downstream folding of the quiescent zone to form a single symmetrical jet stream, thereby permitting abrasive particles for sandblasting, a solid material particles which are subsequently melted or at least heat-softened prior to impact on a substrate for spray coating. As such the gaseous accelerating medium does not interference with the introduction of the particle or the solid rod from which the particles separate after melting to the center of the accelerating stream, thereby maintaining concentricity of the gas stream about the particles facilitating the focusing of the particle stream and maximizing acceleration effect to the particles so introduced.
REFERENCES:
patent: 3136484 (1964-06-01), Dittrich
patent: 3573090 (1971-03-01), Peterson
patent: 3958097 (1976-05-01), Fabel et al.
patent: 4192460 (1980-03-01), Matsuo
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