Patents Assigned to Wisco Industries, Inc.
  • Patent number: 4528802
    Abstract: A food sealing device for shrink-wrapping foods such as pizza includes a heat source surrounded by an inner shroud to create an updraft for heating the film. A second outer shroud is positioned around the inner shroud to prevent the film from contacting the hot inner shroud to prevent melting of the film against the inner shroud which might otherwise damage the film or the food item.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: July 16, 1985
    Assignee: Wisco Industries, Inc.
    Inventor: Ferdinand F. Salzmann
  • Patent number: 4245148
    Abstract: A control circuit is disclosed suitable for use with a toaster or other food browning device which utilizes a radiant energy source to brown food. A light sensitive variable resistor, or photocell, is optically coupled to light reflected from the food being browned in the device. A voltage generated by a voltage divider including the light sensitive resistor therein is compared with a preselectable voltage generated by a second voltage divider to determine whether the heat source should be turned on or off. Suitable solid state control circuitry is provided to ensure that a start-up delay is provided at the beginning of each browning cycle and to reset the circuit for future operation when the desired browning of the food is achieved.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: January 13, 1981
    Assignee: Wisco Industries, Inc.
    Inventors: Edward T. Gisske, Robert J. Sandberg
  • Patent number: D257820
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: January 13, 1981
    Assignee: Wisco Industries, Inc.
    Inventor: Rodney Hegeland
  • Patent number: D271175
    Type: Grant
    Filed: June 2, 1981
    Date of Patent: November 1, 1983
    Assignee: Wisco Industries, Inc.
    Inventors: Ferdinand F. Salzmann, James P. Swinehart
  • Patent number: D271268
    Type: Grant
    Filed: June 2, 1981
    Date of Patent: November 8, 1983
    Assignee: Wisco Industries, Inc.
    Inventors: Ferdinand F. Salzmann, James P. Swinehart