Patents by Inventor Walter Wistinghausen

Walter Wistinghausen 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: 6326879
    Abstract: A thermal switch arrangement for electromagnetic coils of electric motors, including at least one coil, which has a winding (52, 54) and a coil former (30, 48) in the form of a winding core (32), which is enclosed by two end flanges (36, 38; 56, 58, 60, 62), and flat plugs (26, 28; 74, 76, 78), which are connected with the two ends of the winding and/or the connections of a thermal switch (80), assigned to the winding, and are inserted and locked in pockets (40, 42; 64, 66) in or at at least one end flange (36, 38; 56, 58, 60, 62) from the peripheral edge of the latter and locked. Two tags (82, 84) of the thermal switch (80) enter the pockets (40, 42; 64, 66) of the flat plug (74, 78) from the inner surface of the one end flange (36, 60).
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: December 4, 2001
    Assignee: Hanning Elektro-Werke GmbH & Co. KG
    Inventors: Werner Hangmann, Matthias Paul, Norbert Krogmeier, Walter Wistinghausen
  • Patent number: 5975846
    Abstract: A pump for washing-machines, tumble-driers, dishwashers and the like includes an inlet into which an inlet pipe enters, an outlet which is connected to an outlet pipe, with the inlet pipe being disposed and shaped in such a way that a least one low point is formed in the inlet pipe, at which an entire cross-section of the inlet pipe is lower than the inlet of the pump.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: November 2, 1999
    Assignee: Hanning Elektro-Werke GmbH & Co.
    Inventor: Walter Wistinghausen
  • Patent number: 4381048
    Abstract: An electric motor with automatically acting brake, which possesses a brake element including an armature plate and displaceable on the rotor shaft against a helical spring, and released by the magnetic field of the rotor. The brake element axially guides a disc possessing guide grooves situated between it and the armature plate. The inclined planes of the disc are facing towards the rotor and extending around the rotor shaft in the form of annular segments are disposed axially symmetrically on this disc, which are pressed by a prestressed spring bearing against the brake element onto a starting pin inserted into the rotor shaft.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: April 26, 1983
    Assignee: Hanning Elektro-Werke GmbH & Co.
    Inventors: Hans Haverkamp, Walter Wistinghausen
  • Patent number: 4059779
    Abstract: An electric motor and brake arrangement comprises an electric motor with a drive shaft for the motor and an output shaft for the arrangement, the output shaft carrying a radial supporting plate in which is provided a brake element with a brake shoe, the brake shoe being urged into contact with a brake drum associated with the casing by spring means and torque transmitting means on the drive shaft for transmitting torque to the brake element to release the brake, the brake element cooperating with stop means on the support plate for transmission of torque from the brake element thereto.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: November 22, 1977
    Inventor: Walter Wistinghausen