.~.~> Temporary protective coating, impregnation, or cast layer
DEFINITION
Classification: 29/423
Utilizing transitory attached element or associated separate material:
(under subclass 592) Process including (1) provisionally assembling or associating a work part with a separate sacrificial part or material, (2) performing a manufacturing operation of treating or shaping on both assembled or associated parts or materials, and (3) subsequently discarding or destroying the sacrificial part or material.
(1) Note. This subclass does not provide for the temporary association of a workpiece with a jig, fixture, tool, or other apparatus used in the manufacturing operation. Rather, the material of this subclass is in effect a part of the workpiece during the manufacturing operation and is usually deformed, distorted, or shaped along with the workpiece during the manufacturing operation. Search the appropriate subclasses, below, for the associations mentioned above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
17.5, for a process of making foil with pack formation or treatment including use of a transitory solid cover material.
17.9, for a process of making foil including use of a gransitory solid cover material, generally.
404, for a process of placing a part in an environment which is a simulation of that encountered in actual operation of the part, treating the part, and then removing the part for final assembly with other parts or for further treatment.
418, for a process involving the use of a transitory integral portion of a work piece as distinguished from these subclasses in which a separate transitory material is used. 425, for a process of associating parts, shaping them, and then disassociating and reassembling them in a different position.
SEE OR SEARCH CLASS
72, Metal Deforming,
465+, for disclosure of a flexible tool used during deformation and subclasses 54+ when the tool is made of fluent material.
164, Metal Founding,
34+, for metal molding with first making the mold, metal molding, and then destruction of the mold pattern to allow disassociation of the produced article.
171, Unearthing Plants or Buried Objects,
13, 93, 95+, 116, and utilizing a flexible, deformable, or destructible molding surface or material.
205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,
73, for a process of electroforming a roll, a ring, or a hollow body.
228, Metal Fusion Bonding,
118, for process of assembling a plurality of parts including first treating at least two of the contacting interfaces of the parts to inhibit bonding, or selecting the materials of at least two of the parts to provide a nonbonding interface, then applying heat and/or pressure to the assembly to effect bonding at the other interfaces.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
221, and 313 therein pertains to a process including the step of subsequent destruction of a forming surface or mold.
419, Powder Metallurgy Processes, for a process of forming articles by uniting discrete particles containing metal particles, especially,
