Patents by Inventor Mark J. Hanses

Mark J. Hanses 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 of and apparatus for high speed production of absorbent pad lined rectangular sloping walled polystyrene foam meat packaging trays
    Patent number: 4260311
    Abstract: The basic structure of the tray of the invention is specially designed to be produced in a high speed hot polystyrene foam press (such as shown in U.S. Pat. No. 3,830,611) and the invention matches the production rate of this basic tray structure by a method and apparatus which denests the press product to effect its conversion in a horizontal serial fed chain conveyor operation, to absorbent pad lined trays, this operation automatically concluding with recompacting the finished product in a horizontal column delivered onto a counter for manual packaging.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: April 7, 1981
    Assignee: Standard Oil Company (Indiana)
    Inventor: Mark J. Hanses