Patents by Inventor Helmut Landa

Helmut Landa 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 drive unit
    Patent number: 4369387
    Abstract: An electric drive unit particularly adapted for actuating windshield wiper assemblies includes a motor having it's armature shaft carrying aportion having two oppositely pitched worm threads. Two worm gear wheels are disposed each on opposite sides of the threaded portion and in engagement therewith. The axes of rotation of the worm wheels are in parallel. Two spur wheels are each concentrically seated on a respective worm wheel. The spur wheels each engage a wheel having its axis of rotation located in a plane defined by the axes of rotation of the worm wheels. The toothed wheel is connected to a drive shaft.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: January 18, 1983
    Assignee: ITT Industries, Inc.
    Inventors: Gerhard Haar, Heinz Jakob, Helmut Landa, Erwin Mayer, Hans Prohaska, Theodor Schneider, Karl-Friedrich Schubert, Martin Weber