US PATENT SUBCLASS 425 / 44
.~.~ Means to directly apply fluid pressure to preform

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

28.1  DF  RESHAPING, RESIZING OR VULCANIZING MEANS FOR TIRE, TIRE TUBE, OR DRIVE BELT {9}
35  DF  .~ Toroidal or annular female shaping means and coacting means holding preform thereagainst {8}
44.~.~ Means to directly apply fluid pressure to preform {1}
45  DF  .~.~.~> Inner tube type including valve stem feature

DEFINITION

Classification: 425/44

(under subclass 35) Apparatus which includes means applying fluid under pressure into direct contact with an internal surface of a hollow preform.

(1) Note. This includes, for example, the introduction of air under pressure into a tire or inner tube to hold it in

contact with a female mold surface.