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, 2005
Filed:
Feb. 14, 2003
Rudi Kolling, Vlotho, DE;
Rudi Kolling, Vlotho, DE;
Abstract
The toothed belt is produced in a moulding cavity, which is defined by a rotating moulding wheel and an endless moulding belt, which is also rotating. For this purpose, the moulding wheel has a channel defined by lateral cheeks, in the base of which are provided recesses, which correspond to the teeth of the toothed belt. The moulding belt surrounds the moulding wheel over a proportion of its periphery and engages the lateral cheeks at that point. The polyurethane, of which the toothed belt is to consist, is injected into the inlet of the moulding cavity. Upstream of the inlet, 'lost cores' are introduced into some of the recesses in the moulding wheel corresponding to the teeth in such a manner that they are embedded all around in the polyurethane. After finishing the toothed belt the 'lost cores' can be removed. Passages remain which can be used, for instance, for mounting fastening elements.