Patents by Inventor Willy Voit

Willy Voit 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: 4309815
    Abstract: A housing for a small electrical machine, particularly a small electric motor, forms a part of the magnetic circuit of the same and is composed of a cylindrical wall of a magnetoconductive material and a sheet-metal strip which is also constituted by a magnetoconductive material and is bent about the cylindrical wall. A method of manufacturing of the housing includes the steps of bending a sheet-metal band so as to form the cylindrical wall, and bending the sheet-metal strip about the thus-bent sheet-metal band so that the latter serves as a mandrel. The sheet-metal band may be bent on a primary mandrel and temporarily retained on the latter so that the sheet-metal strip is then bent about the band when the latter is still retained on the primary mandrel. End portions of the sheet-metal band and the sheet-metal strip may be connected with one another along the same generatrix of the cylindrical wall.
    Type: Grant
    Filed: February 28, 1979
    Date of Patent: January 12, 1982
    Assignee: Robert Bosch GmbH
    Inventors: Jakob Schmitt, Willy Voit