Patents by Inventor John F. Trembly

John F. Trembly 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).

  • Apparatus for processing polyethylene terephthalate preforms
    Patent number: 4396816
    Abstract: This relates to the heating of polyethylene terephthalate by way of RF energy. It has been found that if polyethylene terephthalate articles are passed through a radio frequency energy field, the molecules thereof will become excited and rapid heating will result. This heating is particularly useful in the heating of preforms prior to the blow molding thereof and by varying the configuration and relationship of electrodes, controlled heating of the preforms may be effected with it being possible to have a controlled temperature differential along the length of the preform or other article so heated.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: August 2, 1983
    Assignee: The Continental Group, Inc.
    Inventors: Suppayan M. Krishnakumar, John F. E. Pocock, Gautam K. Mahajan, John F. Trembly
  • Method of processing polyethylene terephthalate preforms and apparatus
    Patent number: 4342895
    Abstract: This relates to the heating of polyethylene terephthalate by way of RF energy. It has been found that if polyethylene terephthalate articles are passed through a radio frequency energy field, the molecules thereof will become excited and rapid heating will result. This heating is particularly useful in the heating of preforms prior to the blow molding thereof and by varying the configuration and relationship of electrodes, controlled heating of the preforms may be effected with it being possible to have a controlled temperature differential along the length of the preform or other article so heated.
    Type: Grant
    Filed: November 27, 1979
    Date of Patent: August 3, 1982
    Assignee: The Continental Group, Inc.
    Inventors: Suppayan M. Krishnakumar, John F. E. Pocock, Gautam K. Mahajan, John F. Trembly