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:
Nov. 20, 2001
Filed:
Mar. 10, 2000
José Merino Lopez, Riom, FR;
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Abstract
A molding element for a mold for molding a tread, intended to mold in this tread an incision of circular shape around an axis XX′, the main opposing walls of which are connected by a plurality of connecting bridges of rubber mix. This molding element includes two molding parts, each formed by a support extended by at least one molding blade. At least one of the molding parts has a support extended by a blade which is at least partially helical around the axis XX′ and mounted freely in rotation around XX′ relative to the other molding part. The blades of the molding parts cooperate to define a plurality of orifices intended for molding the connecting bridges. The molding element is characterized in that the molding blades of a first molding part are provided with passages arranged so as to permit the engagement by sliding of the molding blades of the second molding part within the passages to form the molding element in the molding configuration, and in that the support of the second molding part is mounted so as to be mobile in translation relative to the first molding part.