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. 05, 1992
Filed:
Dec. 05, 1990
Applicant:
Inventors:
Hirotaka Hatai, Kobe, JP;
Akira Mayahara, Kobe, JP;
Assignee:
Bando Chemical Industries, Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425 28100 ; 425 34100 ; 425384 ;
Abstract
A metallic mold for vulcanizing molding of cogged V-belt with unvulcanized belt material, including a lower mold having a gentle back curve in lengthwise direction thereof and an upper mold having a cogged surface with cog peak parts and cog trough parts arranged alternately. The upper mold is so designed that cog peak parts in the specific range at both end portions thereof are narrower than those at the other part but both are the same in height in lengthwise direction.