Patents by Inventor Hans-Peter Lindenmueller

Hans-Peter Lindenmueller 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: 3987438
    Abstract: An apparatus for representing a tactile character, wherein for each touch button there are provided two magnets arranged at least substantially axially behind each other, of which at least one is an electromagnet, and which magnets by electrical excitation produce a force in the axial direction of the touch button, which force raises or lowers the touch button by means of a magnet core in accordance with the excitation direction. There is coordinated to each touch button, a mechanical, magnetically actuatable locking device, which locking device is operative only on the touch button.
    Type: Grant
    Filed: June 24, 1975
    Date of Patent: October 19, 1976
    Inventors: Hans-Peter Lindenmueller, Klaus-Peter Schoenherr