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:
Mar. 19, 2002
Filed:
Jul. 25, 2000
Christian Sandner, Gmunden, AT;
Miba Sintermetall Aktiengesellschaft, Laakirchen, AU;
Abstract
There are described a method and an apparatus for producing a gear wheel from a powder metal blank ( ) pressed and sintered with an overmeasure in the toothing area, which powder metal blank is compacted under a plastic deformation in the vicinity of the overmeasure by pressing against a counter-toothing ( ) of at least one rotating pressing tool ( ) by the overmeasure, which counter-toothing engages in the toothing ( ) of the powder metal blank ( ). To create advantageous constructional conditions it is proposed that the counter-toothing ( ) designed as internal toothing of the annular pressing tool ( ) enclosing the powder metal blank ( ) is pressed into the toothing ( ) of the powder metal blank ( ) by means of a pressure roller rolling on the outside periphery ( ) of the pressing tool ( ).