Patents by Inventor Manfred Eisenmann

Manfred Eisenmann 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: 4987329
    Abstract: In order to reduce, in a permanent magnet-excited electric motor with at least four poles, the cost for the machining and assembly of a magnet arrangement and to thereby lower the production costs, a magnet arrangement with a magnetic surface radially magnetized with an alternating pole sequence which is composed of three indvidual segments following each other in the circumferential direction, with a pole division extending beyond two adjacent individual segments.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: January 22, 1991
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Schmidt, Ernst Grecksch, Manfred Eisenmann
  • Patent number: 4823749
    Abstract: Device for controlling the intake air in an internal combustion engine. The control occurs via a throttle valve that is adjusted by a stepping motor and is directly secured on the shaft of the stepping motor thereof. The stepping motor is driven in fine step mode in order to be able to position the throttle value with great precision. In order to achieve a high speed of adjustment, a rough step mode is provided, whereby an extremely large, dynamic load angle can be respectively achieved during accelerating and decelerating independently of the operating parameters.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: April 25, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Manfred Eisenmann, Hans Schreiber