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:
Jan. 30, 2024
Filed:
Jan. 22, 2021
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Hiroki Uno, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Abstract
In a tread-forming surface of a mold, a contour of a land surface-forming portion located between two projections among at least three land surface-forming portions can be represented by a single circular arc that is convex outward. In a case where, of the two projections, one projection is a wide projection and the other projection is a narrow projection, when a surface that has a contour represented by at least one circular arc and that is tangent to the at least three land surface-forming portions is defined as a reference surface of the tread-forming surface, a drop distance from the reference surface to an end on the wide projection side of the land surface-forming portion can be longer than a drop distance from the reference surface to an end on the narrow projection side of the land surface-forming portion.