US PATENT SUBCLASS 427 / 542
.~.~.~ Infrared or radiant heating

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
532  DF  .~ Pretreatment of substrate or post-treatment of coated substrate {9}
541  DF  .~.~ Drying {1}
542.~.~.~ Infrared or radiant heating

DEFINITION

Classification: 427/542

Infrared or radiant heating:

(under subclass 541) Processes wherein the drying is directly influenced by electromagnetic waves longer than those of visible light and shorter than those of radio waves or by infrared radiation; e.g., black body radiation, from a body not hot enough to emit visible radiation.

(1) Note. This subclass provides for coating processes utilizing radiant heat only when "radiant heat" is specifically set forth.

(2) Note. This subclass excludes processes wherein the infrared energy or radiant heat is utilized to vaporize the coating material in a vapor deposition process.

(3) Note. Radiant rays pass through gases without warming them appreciably, but the rays increase the sensible temperature of a solid or liquid upon which they impinge.

SEE OR SEARCH THIS CLASS, SUBCLASS:

248.1, for coating processes utilizing vaporized coating materials in vapor deposition processes.