Patents Assigned to Holoubek, Inc.
  • Patent number: 5908000
    Abstract: A multi-colored silk screen printing machine has an improved electric resistance heating station to cure silk screen printed ink on a substrate such as a textile. A control system has a proximity switch that detects the presence of a pallet within the heat curing station and starts supplying electrical power to a bank of electric resistance heaters automatically only when a pallet is present. An infrared temperature sensor is used to measure the ink temperature when the bank of electric resistance heaters is heating the printed ink on the textile. The infrared sensor provides a signal to a control system that interrupts power to the bank of electric resistance heaters when the signal exceeds a preselected maximum ink temperature value. A timer can also be used to override the infrared temperature sensor. A sheltered passageway and a low level air flow therethrough protect the face or lens of the infrared sensor from gases, smoke or other types of contamination.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: June 1, 1999
    Assignee: Holoubek, Inc.
    Inventors: Dennis J. Spychalla, Theodore H. Kauth, Verne R. Holoubek