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Coating composition vaporizer

  • US 3,970,037 A
  • Filed: 12/17/1974
  • Issued: 07/20/1976
  • Est. Priority Date: 12/15/1972
  • Status: Expired due to Term
First Claim
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1. Apparatus for applying a coating to a substrate, comprising:

  • an enclosed chamber;

    means for spraying a vaporizable coating reactant into said enclosed chamber in a first direction at a temperature below its vaporization temperature;

    means for (1) moving a stream of carrier gas into said enclosed chamber in a second direction intersecting the first direction of the coating reactant and (2) heating the carrier gas to a temperature above the vaporization temperature of the coating reactant and below the decomposition temperature of the coating reactant to mix the coating reactant with the carrier gas and vaporize the coating reactant by the heat of the carrier gas to form a gaseous mixture;

    means connected to said enclosed chamber for directing the gaseous mixture against the substrate to be coated, andheating means mounted in said enclosed chamber between said dispersing means and said directing means to stabilize the temperature of the gaseous mixture passing therethrough, said heating means having sufficient heat capacity to heat a cooler mixture and to cool a hotter mixture to the temperature of said heating means while maintaining the temperature of said heating means substantially unchanged.

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