Patents by Inventor Manfred Kropp

Manfred Kropp 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: 4748358
    Abstract: An electric machine, particularly for starting devices, is suggested. Permanent magnets (4 to 9) with assigned flux conducting pieces (10 to 15) are arranged in the housing (1) of the electric machine. The permanent magnets (4 to 9), together with the flux conducting pieces (10 to 15), are preassembled in two rings (18, 19) as retaining parts to form a constructional unit. Each ring (18, 19) has a cylindrical portion (20; 30) which contacts the end portions of the inner side (21; 22) of the permanent magnets (4 to 9) or the flux conducting pieces (10 to 15). A flangelike edge (25; 33) of the rings (18; 19) contacts the front sides (23, 24; 31, 32) of the permanent magnets (4 to 9) and the flux conducting pieces (10 to 15). Tabs (26, 27; 34, 35), which contact the end portions of the free longitudinal sides (17; 28 ) of the permanent magnets (4 to 9) or the flux conducting pieces (10 to 15), are bent out from the edges 25 and 33.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: May 31, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Walter Ruhle, Peter Kleindieck, Kurt Zimmermann, Manfred Kropp