US PATENT SUBCLASS 432 / 253
ACCESSORY MEANS FOR HOLDING, SHIELDING OR SUPPORTING WORK WITHIN FURNACE

Current as of: June, 1999
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432 /   HD   HEATING

253ACCESSORY MEANS FOR HOLDING, SHIELDING OR SUPPORTING WORK WITHIN FURNACE {5}
254.1  DF  .~> Fluid tight metallic heat transferring box, shield or hood {1}
258  DF  .~> Support structure for heat treating ceramics (e.g., saggars, etc.) {1}
260  DF  .~> For annular work (e.g., coil separator, etc.)
261  DF  .~> Openwork tray, basket, or grid structure for heat treating metal
262  DF  .~> Crucible {3}

DEFINITION

Classification: 432/253

Structure specialized for use in a subordinate or temporary capacity in heating apparatus comprising (1) means by which a body or material is held in place in a heating zone or (2) a protective means for limiting or directing the transfer of heat from the heating medium or heat radiator to work or parts of work within a heating zone.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

239+, for means to support solid work for drying or for contact of solid with gas or vapor.

269, Work Holders, appropriate subclass for a residual device for clamping, supporting or holding an article in position to be operated on or treated.