.~> Distinct temperature modifications at distinct locations of workpiece {1}
DEFINITION
Classification: 72/342.1
With temperature modification of tool or of specified portion of work:
(under the class definition) Subject matter comprising means for or a step of localized heating or cooling of a tool* of a metal deforming device and/or of a limited and particularly denoted part of the work.
(1) Note. The general heating or cooling of a machine or of work material is excluded from this subclass, and a disclosure thereof is to be placed with the class type of deforming method or apparatus claimed.
(2) Note. The schedule of this class (72) does not distinguish generally between "hot" and "cold" work in patent claims, for this feature is not consistently specified in the claims. Subclasses in certain areas of the schedule recognize heating or cooling as significant (see subclass 286, for example, in the wire or tube drawing art).
SEE OR SEARCH THIS CLASS, SUBCLASS:
8.5, 12.2, 16.4, and 18.3, for metal deforming with use of control means energized in response to an activator stimulated by a sensor responsive to the temperature of work or product.
69, for metal deforming by use of a tool acting during relative rotation about an internal center with modification or control of temperature of work, tool, or machine; or with lubrication thereof.
128, for metal deforming by deflecting with modification or control of temperature of work, tool or machine.
200, for metal deforming by a roller with modification or control of temperature of work, tool or machine. 286, for metal deforming by pulling a workpiece through a closed periphery die with heating or cooling.
