US PATENT SUBCLASS 425 / 446
.~ In or on work confining surface

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

445  DF  MEANS TREATING SHAPED WORK {1}
446.~ In or on work confining surface

DEFINITION

Classification: 425/446

(under subclass 445) Apparatus in which the treating of the work is accomplished while it is on or in the shaping surface thereto.

(1) Note. The work support may be a mold if the chemical or physical modification is done concurrently with the molding.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28.1+, for means treating (e.g.., vulcanizing, etc..) a toroid (i.e., a tire, tube or belt).

407, for press forming apparatus including both heating and cooling means; see the search notes thereunder.

548, for plural distinct heating or cooling means in injection molding type apparatus.

SEE OR SEARCH CLASS 249, Static Molds,

78, and 79+ for a static mold having an electric heating means and means within a surface of a mold to confine a heat exchange medium, respectively.