(under the class definition) Subject matter comprising a step
of, or means for, the application of plastic or liquid material to work as a coherent film, cover, or spot, prior to or during an operation of the class type, which material or residue thereof is disclosed as remaining on the surface of the work, at least until said operation has been completed.
(1) Note. This subclass is the locus of patents directed to metal deformation preceded by the application of molten, plastic, or liquid substance to all or a portion of the surface of work, provided that the substance or a residual part thereof remains on the work as a distinguishable layer, at least throughout the deforming operation, or as a more or less durable coating. Water may thus constitute a "coating" for this subclass.
(2) Note. The coating may be applied by brushing, spraying, casting, molding, etc., or by any technique other than attachment of a preform (a self-sporting shape), which latter constitutes "assembly" for Class 29, Metal Working.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39+, for cleaning or descaling in connection with metal deforming.
41+, for application of material claimed or disclosed as a lubricant.
271, 286, 342, and 364, for a disclosure of temperature maintenance or modification of work material which may involve application of fluent material as a heating or cooling agent. SEE OR SEARCH CLASS
29, Metal Working, appropriate subclasses for process or apparatus for assembly of objects (preforms) not elsewhere classified, particularly
527.1+, for (a) process of casting and deforming a metal workpiece, (b) a process involving deforming and coating plus additional treatments excluded from this class, and (c) process involving casting or coating subsequent to deformation.
118, Coating Apparatus,
75, for combined coating and noncoating apparatus, generally.
219, Electric Heating, for electric arc deposition of one metal on another followed by metal deformation.
425, Plastic Article or Earthenware Shaping or Treating: Apparatus,
90+, for apparatus to shape or reshape nonmetals combined
with means to apply a coating to the work or work-contacting surfaces.
