Patents by Inventor Alfred Grazen

Alfred Grazen 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).

  • Patent number: 4737162
    Abstract: A method of producing precision abrasive articles by electroforming for use in metal removal operations. In this method abrasive particles are packed firm between the inner circumferential surface of a mold and a centrally located metallic grid. Electrolyte for metal deposition is then introduced into the space containing the abrasive particles. An electrical cathode connection is made to the mold and an anodic connection made to the anode. Metallic deposition around the abrasive articles occurs on the inner annular surface of the mold and continues until a matrix supporting the abrasive particles is formed. The mold with the matric is then removed to receive core material, and the core is then machined to finished dimensions. The method is carried out at low temperatures and without any movement of the mold.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: April 12, 1988
    Inventor: Alfred Grazen