Patents by Inventor Joseph Haberkorn

Joseph Haberkorn 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).

  • Method for mold temperature control
    Patent number: 4420446
    Abstract: A method and apparatus (10) is disclosed which provides automatic control of the temperature of a fluid cooled plastic mold (12) during successive injections of liquid plastic into the mold. The temperature of the mold (12) is sensed by a probe (18) which provides a signal indicative of the temperature of the mold. The signal from the probe (12) is compared by the apparatus with a selected control temperature signal indicative of the proper operating temperature of the mold. When the sensed temperature is above the control temperature, a solenoid operated control valve (50) is activated so that cooling fluid, such as ordinary tap water, is passed through cooling channels (13) in the mold. Flow of cooling fluid is shut off when the sensed temperature drops below the selected operating temperature.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: December 13, 1983
    Assignee: Cito Products, Inc.
    Inventors: Horst K. Wieder, Klaus A. Wieder, Joseph Haberkorn
  • Method and apparatus for mold temperature control
    Patent number: 4354812
    Abstract: A method and apparatus (10) is disclosed which provides automatic control of the temperature of a fluid cooled plastic mold (12) during successive injections of liquid plastic into the mold. The temperature of the mold (12) is sensed by a probe (18) which provides a signal indicative of the temperature of the mold. The signal from the probe (12) is compared by the apparatus with a selected control temperature signal indicative of the proper operating temperature of the mold. When the sensed temperature is above the control temperature, a solenoid operated control valve (50) is activated so that cooling fluid, such as ordinary tap water, is passed through cooling channels (13) in the mold. Flow of cooling fluid is shut off when the sensed temperature drops below the selected operating temperature.
    Type: Grant
    Filed: August 20, 1980
    Date of Patent: October 19, 1982
    Assignee: CITO Products, Inc.
    Inventors: Horst K. Wieder, Klaus A. Wieder, Joseph Haberkorn