Apparatus for heating and spraying viscous coating material

Details Apparatus for heating and spraying viscous coating material Apparatus for heating and spraying viscous coating material

B - Operations, Transporting

05

B

94/48, 32/60

B05B 12/00 (2006.01) B05B 9/00 (2006.01) B05B 9/04 (2006.01)

Patent

CA 1187279

ABSTRACT OF THE DISCLOSURE An improved apparatus for projecting a viscous coating material onto a surface whereby a constant pressure pump propels a viscous coating material, such as tar, pitch, oil or the like, through a high-pressure relief valve to a spray gun or wand. The rapid flow of the material through the restricted orifice of the relief valve produces sufficient friction to heat the viscous material thereby reducing the viscosity and rendering it easier to apply. A secondary relief valve is provided to reduce any excess pressure that develops and to recirculate any unused material to a supply resevoir.

403061

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