US PATENT SUBCLASS 516 / 5
.~ Steam present

Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

1  DF  CONTINUOUS GAS OR VAPOR PHASE: COLLOID SYSTEMS; COMPOSITIONS CONTAINING AN AGENT FOR MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF PREPARING THE COMPOSITIONS (E.G., SMOKE, FOG, AEROSOL, CLOUD, MIST) {4}
5.~ Steam present

DEFINITION

Classification: 516/5

Steam present:

(under subclass 1) Subject matter in which the colloid system contains steam.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10+, for colloid systems of continuous liquid phase and a discontinuous gas or vapor phase (i.e., foam), and propellant per se, therefor.

SEE OR SEARCH CLASS

162, Paper Making and Fiber Liberation; see

68, for processes wherein the fibrous material is forcibly and directly contacted with steam only during digestion or chemical treatment for some purpose other than drying.

392, Electric Resistance Heating Devices,

324+, for steam or vapor generator which is a fluid-in-circuit type heater, and subclasses 386+ for a heating device for use in converting a substance from a solid or liquid to a gaseous state (especially subclasses 394+ for evaporation device for substance which is a liquid (e.g., water, etc.)).