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. 13, 1994
Filed:
Oct. 27, 1992
Applicant:
Inventor:
Karl J Siegenthaler, Rome - Ostia, IT;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264150 ; 264159 ; 2642093 ; 264310 ; 264312 ; 425 31 ; 425 32 ; 425 38 ; 425297 ;
Abstract
A method of producing a spliceless annular tread cap (2), whereby a portion (23) of an extruded tube (21) of green elastomeric material is fed inside an annular body (8), the inner annular surface (17) of which presents a diameter approximately equal to but no smaller than the outside diameter of the tubular portion (23), and negatively reproduces the pattern of the finished tread cap (2). The tubular portion (23) is expanded and calendered against the inner surface (17) of the annular body (8) by means of a roller (34) moved into a position coplanar with and eccentric in relation to the annular body (8).