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Article: German Inventor Develops Hollow Grinding Bodies Production Method
- Article from:
- US Fed News Service, Including US State News
- Article date:
- January 11, 2008
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ALEXANDRIA, Va., Jan. 11 -- Jens-Peter Thiel of Horneburg, Germany, has developed a hollow grinding bodies producing method.
According to the U.S. Patent & Trademark Office: "A method for producing hollow grinding bodies for comminuting material to be ground uses a casting mold having a cavity and includes arranging a core in the cavity with retaining elements to produce a shell-type intermediate space. At least in the area of the intermediate space a metallic material is used as a covering for the retaining elements and fuses with the casting material."An abstract of the invention, released by the Patent Office, said: "The corresponding grinding body has fused-in coverings which ...