Method for rendering a pneumatic tire inner tube substantially static-free

Claim 1

A METHOD OF RENDERING AN INNER TUBE FOR A PNEUMATIC TIRE SUBSTANTIALLY STATIC-FREE WHICH COMPRISES SQUIRTING A CHARGE CONSISTING OF ELECTRICALLY CONDUCTIVE CARBON BLACK IN UNIFORM ADMIXTURE WITH A VOLATILE LIQUID IN WHICH RUBBER IS INSOLUBLE LOCALLY INTO THE INTERIOR OF A RAW INNER TUBE BEFORE SPLICING THE SAME, SUBSEQUENTLY SPLICING THE TUBE AND HEATING THE SAME TO EFFECT VULCANIZATION, SAID HEAT OF VULCANIZATION SERVING TO VOLATILIZE SAID LIQUID, AND VENTING THE VAPOR FROM THE STILL HOT TUBE, THEREBY LEAVING A DEPOSIT OF DRY CONDUCTIVE CARBON BLACK POWDER, DEVOID OF BINDING MATRIX, ON THE INTERIOR SURFACE OF THE TUBE WHICH BECOMES DISTRIBUTED FROM THE AREA WHERE THE CHARGE WAS ORIGINALLY SQUIRTED INTO THE RAW TUBE AND BECOMES UNIFORMLY SPREAD OVER THE ENTIRE INTERIOR SURFACE OF THE TUBE TO FORM A CONDUCTIVE LAYER THEREON IN SUBSEQUENT HANDLING AND USE OF THE TUBE.

Claim 2

A METHOD OF RENDERING AN INNER TUBE FOR A PNEUMATIC TIRE SUBSTANTIALLY STATIC-FREE WHICH COMPRISES SQUIRTING A CHARGE CONSISTING OF ELECTRICALLY CONDUCTIVE CARBON BLACK IN UNIFORM ADMIXTURE WITH A VOLATILE LIQUID IN WHICH RUBBER IS INSOLUBLE LOCALLY INTO THE INTERIOR OF A RAW INNER TUBE BEFORE SPLICING THE SAME, SUBSEQUENTLY SPLICING THE TUBE AND HEATING THE SAME TO EFFECT VULCANIZATION, SAID HEAT OF VULCANIZATION SERVING TO VOLATILIZE SAID LIQUID, AND VENTING THE VAPOR FROM THE STILL HOT TUBE, THEREBY LEAVING A DEPOSIT OF DRY CONDUCTIVE CARBON BLACK POWDER, DEVOID OF BINDING MATRIX, ON THE INTERIOR SURFACE OF THE TUBE WHICH BECOMES DISTRIBUTED FROM THE AREA WHERE THE CHARGE WAS ORIGINALLY SQUIRTED INTO THE RAW TUBE AND BECOMES UNIFORMLY SPREAD OVER THE ENTIRE INTERIOR SURFACE OF THE TUBE TO FORM A CONDUCTIVE LAYER THEREON IN SUBSEQUENT HANDLING AND USE OF THE TUBE.