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. 26, 2013
Filed:
Sep. 10, 2007
Werner Schnabel, Regensburg, DE;
Siegfried Deiss, Mötzing, DE;
Werner Schnabel, Regensburg, DE;
Siegfried Deiss, Mötzing, DE;
Mahle International GmbH, , DE;
Abstract
The invention relates to a method which uses an injection mold for the production of an intake system which is composed of plastic and is intended for internal combustion engines, and which has a plurality of parallel-running intake pipes and which has, arranged in the intake pipes, throttle flaps operated by way of a shared shaft bearing against bearings located in the walls of the intake pipe. A simplified production process is obtained if two mandrels () of the injection mold, intended for formation of apertures for the bearings, are inserted respectively from one side of the injection mold in such a way that ends of the mandrels () bear against one another in the injection mold, and if the method of production of apertures situated further outwards, with respectively greater diameter than the adjacent inwardly situated apertures is such that each mandrel () is of staged shape, and the mandrels () are drawn out during demolding at the two sides of the injection mold.