Patents by Inventor Jon E. Boettner

Jon E. Boettner 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).

  • Patent number: 4066725
    Abstract: The control cycle for an injection molding machine comprises successive fill, compaction, hold, cure and mold open times. The ram position and mold pressure are monitored at predetermined times respectively after the molding cycle has begun. If the ram position is out of tolerance, the fill pressure is adjusted to compensate for the deviation. If the mold pressure is out of tolerance, the compaction pressure is adjusted to compensate for the deviation in mold pressure.
    Type: Grant
    Filed: December 3, 1973
    Date of Patent: January 3, 1978
    Assignee: Barber-Colman Company
    Inventor: Jon E. Boettner
  • Patent number: 3932083
    Abstract: The control system for an injection molding machine providing successive fill, compaction, hold, cure and mold open times. The ram position and mold pressure are monitored at predetermined times respectively after the molding cycle has begun. If the ram position is out of tolerance, the fill pressure is adjusted to compensate for the deviation. If the mold pressure is out of tolerance, the compaction pressure is adjusted to compensate for the deviation in mold pressure.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: January 13, 1976
    Assignee: Barber-Colman Company
    Inventor: Jon E. Boettner