Patents by Inventor Gunter Hellmut Schumann

Gunter Hellmut Schumann 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).

  • Photoelectric line follower
    Patent number: 4081671
    Abstract: An arrangement for cutting workpieces with a scanning device having a signalling photoresistor which detects markings, with an attached control device which contains a first timing element to which a switch for reducing the rate of speed is connected includes an OR-element connected between the first timing element and the switch with a further timing element connected by means of an AND-element to the input and output of the timing element with the input of the further timing element being connected to the output of the AND-element and the output of the further timing element being operationally connected to the input of the OR-element.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: March 28, 1978
    Assignee: Messer Griesheim GmbH
    Inventors: Dietrich Bohme, Gunter Hellmut Schumann, Gunter Hahn, Rolf Jung