Patents by Inventor Rolf Oettinger

Rolf Oettinger 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).

  • Electronic control system for magnetic valves operated individually or in cascade
    Patent number: 5318269
    Abstract: An electronic control system for individually operated magnetic valves and valve cascades automatically switches to individual operation or cascade operation by a switching logic. The switching logic detects the presence of an actual value signal of a main valve of a valve cascade so that the electronic control system is automatically adjusted to cascade operation in this case. In the absence of an actual value of the main valve, a cable interruption is detected and the final stage is locked. At-14 Volts at the main stage actual value input, the electronic control system is adjusted to the individual operation of a magnetic valve.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: June 7, 1994
    Inventors: Rolf Oettinger, Martin Latt