(under the class definition) Device which includes means to maintain or alter the temperature of the device or work.
(1) Note. Heating or cooling of the work to the extent of changing its state (e.g., from solid to liquid), other than for the purpose of effecting a cut by means of a solid tool, has been considered a shaping or treating operation beyond the scope of this class (83). Patents for such treating or shaping means combined with cutting means have been placed elsewhere; for example, on the basis of the type of material so shaped or treated.
(2) Note. The patents of this and the indented subclass primarily differ from related devices in Class 219, Electric Heating, in that the tool herein disclosed maintains physical
contact with, and bodily penetrates the workpiece during the cutting operation; even though melting of the workpiece is achieved during such tool penetration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15+, for corresponding process.
169, for apparatus for applying a transient, nonpropellant fluid to the tool or work, which liquid may heat, cool, or maintain the temperature of, the tool or work. SEE OR SEARCH CLASS
56+, for methods and subclasses 320+ for apparatus, for cutting combined with freezing or combined with cooling of the type classified in that class (62).
219, Electric Heating,
68+, for cutting including electrically heating metallic work.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
138+, for processes of molding and shaping within the class definition, when combined with a cutting or severing step and see (1) Note above.
