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. 08, 1990
Filed:
Aug. 16, 1988
Chiaki Ozawa, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A forming drum to be used in tire building for forming a strip-like belt member having a steel cord buried therein into an annular shape. The forming drum includes a plurality of segments divided in the circumferential direction and made of non-magnetic material, which form substantially cylindrical shapes having different outer diameters as moved in the radial direction, and permanent magnet are buried in the circular arc-shaped surfaces of the segments. Between adjacent segments are mounted cover plates made of non-magnetic material, and a cylindrical outer circumferential surface is formed by these cover plates. Each cover plate is fixedly secured to the circular arc-shaped surface of one of the adjacent segments.