Patents by Inventor Frederick Shortt

Frederick Shortt 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).

  • Corrugating machine with a flexible vessel pressure applying means
    Patent number: 5256240
    Abstract: A heat transfer system particularly though not exclusively for assisting the bonding of a continuous liner sheet to a single faced board in a corrugating machine where the single faced board (10), after gluing of the corrugated tips is brought together with the liner (12) and conveyed across a series of hot plates (15), the invention consisting of a series of vessels (20) containing a liquid or gas arranged above the conveyed board to press same uniformly in contact with the hot plate surface irrespective of distortion or undulation thereof thus to ensure adequate heat transfer and avoid damage to the board.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: October 26, 1993
    Assignee: Simon Container Machinery Limited
    Inventor: Frederick Shortt