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:
May. 15, 1984
Filed:
Mar. 08, 1982
Applicant:
Inventor:
Lothar Fink, Achim-Baden, DE;
Assignee:
Klockner-Werke AG, Duisburg, DE;
Primary Examiner:
Int. Cl.
CPC ...
B29H / ; B29H / ;
U.S. Cl.
CPC ...
156125 ; 1563941 ; 1523 / ; 264255 ; 264315 ; 264326 ; 425 43 ; 425 46 ; 425 47 ; 425 56 ;
Abstract
A vehicle tire crown portion 10 including a tread 11 is injection molded and prevulcanized in a closed annular mold cavity 17 defined by a segmented outer mold 16 clamped together by a locking ring 22 and a segmented core 19 pressed against the outer mold by upper and lower pressure plates 25, 26. The core is then removed by disassembling its segments, whereafter a carcass 14 and prevulcanized sidewalls 12, 13 are placed in the central portion of the mold on an inflatable air bag 38 flanked by lateral mold section 39, 40. The vulcanization of the tire assembly is then completed, during which the sidewalls are joined to the retained crown portion.