US PATENT SUBCLASS 425 / 89
WITH INTERPOSED NON-ADHERING WEB OR SHEET TYPE PARTING MEANS


Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

89WITH INTERPOSED NON-ADHERING WEB OR SHEET TYPE PARTING MEANS


DEFINITION

Classification: 425/89

(under the class definition) Apparatus including, a removable sheet or web of flexible material having anti-stick properties disposed between the shaping surface and the material to be shaped.

(1) Note. To be included herein the sheet must be flexible to the extent that it conforms to the mold surface and must not have any shape imparting structure of its own.

(2) Note. Webs or sheets which serve to advance the work to or from a shaping station, e.g.., belts, etc.., are classified in appropriate subclasses below even though they also serve as parting means at the shaping station.

SEE OR SEARCH CLASS

53, Package Making,

113+, especially subclass 122 for means for making a package out of a web or sheet type parting means combined with means for shaping the material being packaged. For a more detailed statement of the line with Class 53 see the class definition of this Class 425.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture, 392, for laminating apparatus with or without molding including pipe wrapping type work securing means.

249, Static Molds,

112+, for static molds having a removable or movable liner.

264, Plastic and Nonmetallic Articles Shaping or Treating: Processes,

219+, for a plastic article making process including or comprising a step of making or shaping a mold and subclasses 313+ for a process of shaping against a forming surface

utilizing a flexible, deformable or destructible mold surface or material.