US PATENT SUBCLASS 29 / 402.21
.~.~.~ Including heating


Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
402.01  DF  .~ Repairing {5}
402.19  DF  .~.~ By shaping, e.g., bending, extruding, turning, etc. {1}
402.21.~.~.~ Including heating


DEFINITION

Classification: 29/402.21

Including heating:

(under subclass 402.19) Process of repairing having a step of substantially raising the temperature of a portion of the machine, apparatus, static structure, or article.

SEE OR SEARCH THIS CLASS, SUBCLASS:

447, for a process of assembling including application of heat, e.g., to shrink fit.

SEE OR SEARCH CLASS

72, Metal Deforming,

69, for metal deforming by use of a tool acting during relative rotation of the tool and the work about an internal center, with modification or control of temperature, and subclass 364 for a process of metal deforming with temperature maintenance or modification.

148, Metal Treatment, appropriate subclasses for processes of significant heat treatment of metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical properties of metal. See the Class 148 definition to determine what constitutes significant heat treatment.