US PATENT SUBCLASS 266 / 249
MEANS TREATING SOLID METAL

Current as of: June, 1999
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266 /   HD   METALLURGICAL APPARATUS

249MEANS TREATING SOLID METAL {5}
250  DF  .~> Having evacuated chamber
251  DF  .~> By contact with gas {2}
259  DF  .~> By cooling of the solid {1}
261  DF  .~> By flame contact heating
262  DF  .~> Fluid tight heat transferring box shield or hood (e.g., annealing box) {1}

DEFINITION

Classification: 266/249

(under the class definition) Device wherein means are provided which operate upon a metallic object or mass to discrete metal granules to enhance their physical, chemical or mechanical properties.

SEE OR SEARCH THIS CLASS, SUBCLASS:

114+, for apparatus which both heats and contacts a metallic object with a liquid or which includes means to control the shape of an object undergoing a liquid contact operation.

SEE OR SEARCH CLASS

148, Metal Treatment, particularly

559+, for processes of treating solid or semi-solid metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical property of metal.

432, Heating, appropriate subclasses, for furnaces which merely elevate the temperature of a metal object to facilitate some further treatment, e.g., rolling, and where no specific gaseous environment, treating or protective, is supplied to, circulated in or generated within the furnace.