Patents by Inventor Walter Spitzl

Walter Spitzl 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 cooker time switch
    Patent number: 6350966
    Abstract: An electronic cooker time switch (1) having a display panel, input elements for time data and switching times, a control circuit, a relay for automatically switching an electric load on and off, and a change-over switching device for switching over from an automatic to a manual mode, wherein there are provided a display portion (2) which has a time switch with digital display and a circuit board (15) with mains unit and control electronics, and an operating portion (3) which is arranged separately from the display portion. This modular design unit that it is possible to use different kinds of operating portions (3) with one and the same display portion (2).
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 26, 2002
    Assignee: Diehl Controls Nümberg GmbH & Co. KG
    Inventors: Erwin Potthof, Walter Spitzl
  • Switch module arrangement for use with resistive-type loads
    Patent number: 4948949
    Abstract: An arrangement for regulating the power output of resistive loads or electrical appliances, especially the cooking plates of electric ranges, which includes actuating elements for the switching on and preselection of power stages or steps for the load devices, relays for the supply of power, and incorporating an electronic control circuit for regulating the conductance of electrical power to the resistive loads.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: August 14, 1990
    Assignee: Diehl GmbH & Co.
    Inventors: Alfred Meisner, Walter Spitzl