Patents by Inventor Reinhard Sänger

Reinhard Sänger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy
    Patent number: 6764557
    Abstract: The invention relates to a process for producing a corrosion-resistant blasting agent (>60 HRC) with sharp edges based on an Fe—Cr—C alloy. A granulate consisting of an iron-chromium-carbon alloy is hardened in said process to >60 HRC by subjecting it to a heat treatment at above 900° Celsius under a reducing atmosphere. An oxide-free, hard material is obtained in this way that can be crushed into grains with sharp edges. The result is a blasting agent with excellent properties for the surface treatment of workpieces consisting of corrosion-resistant materials such as, for example stainless steel, nonferrous metals and natural stone.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: July 20, 2004
    Assignee: Vulcan Strahltechnik GmbH
    Inventors: Reinhard Sänger, Oliver Zyto