Patents by Inventor Rudolf Neidhardt

Rudolf Neidhardt 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).

  • Apparatus for locking a keyboard at selected inclinations to a horizontal reference
    Patent number: 4421035
    Abstract: A keyboard is pivotally mounted on a pull out shelf to be raised from a reference position to desired angles of inclination within a range of angles, and is associated with apparatus for positively locking the keyboard following movement of the keyboard to a desired angle of inclination and its release; with the weight of the keyboard acting to maintain locking action. The apparatus effecting the locking action comprises a toothed segment whose arc and teeth define a range of angles. Associated with the toothed segment is a supporting arm biased to follow upward keyboard movement and on which the keyboard after being raised to a desired angle of inclination rests.
    Type: Grant
    Filed: April 14, 1981
    Date of Patent: December 20, 1983
    Assignee: Triumph-Adler A.G. fur Buro-und Informationstechnik
    Inventors: Bernd Gubbe, Klaus-Dieter Krause, Otto Schonemann, Rudolf Neidhardt
  • Height and inclination adjustable support shelf
    Patent number: 4379429
    Abstract: A pullout shelf provided with rollers is mounted on static roller guide structure having several tracks with openings in the tracks to allow manipulation of the shelf and a supported machine to desired heights and inclinations.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: April 12, 1983
    Assignee: Triumph-Adler A.G.
    Inventors: Bernd Gubbe, Klaus-Dieter Krause, Rudolf Neidhardt, Otto Schonemann