The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 1981
Filed:
Jul. 08, 1980
Roger Le Moullac, Le Plessis Bouchard, FR;
Abstract
A segmented mold for molding tire casings has a fixed lower mold part for molding one side wall of the tire, a series of molding segments for molding the tread movably mounted on the lower mold part to be slidable and swingable along radial planes, an axially movable upper mold part for molding the other side wall of the tire, and means cooperating with the segments to effect the movement thereof along the radial planes. The mold also has elastic members interposed between the fixed lower mold part and the segments for continously urging each of said segments toward an open position in which the segments are radially retracted and swung upward and to the outside of the mold to free a passage for the tire when the upper mold part is lifted off. These members include a first spring for pulling each segment radially outward and a second spring for tilting each segment vertically upward toward an open position.