US PATENT SUBCLASS 425 / 37
.~.~ Including core pins forming transverse voids in solid tire portion

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}
37.~.~ Including core pins forming transverse voids in solid tire portion

DEFINITION

Classification: 425/37

(under subclass 35) Apparatus which includes plural means for forming sidewall openings in the solid rubber portion of a tire, the openings being parallel to the tread surface.

(1) Note. These openings produce a more resilient tire, generally called a "cushion tire".