Patents by Inventor Christian Allgeier

Christian Allgeier 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).

  • Electric motor, especially a permanently excited direct current motor
    Patent number: 6225714
    Abstract: The electric motor, especially a permanently excited direct current motor, has a housing (16) carrying a magnetic pole (15) and a grounding ring (17) made from magnetically conductive material and mounted on the housing. In order to reduce the noise generation of the motor the grounding ring (17) is a knit article made from a thread-form or wire-form magnetically conductive material.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: May 1, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Reuben Agnon, Walter Lehnert, Christian Allgeier, Otto Brass