Patents by Inventor John K. Harabedian

John K. Harabedian 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).

  • Bottom pouring tube for steel processing
    Patent number: 4915269
    Abstract: A unitary cylindrical sleeve is provided for receipt in a trumpet or flumme for use in bottom pouring steel processing operations. The ceramic sleeve includes an inner tubular metallic or plastic shell which receives on the outside thereof a ceramic outer shell. The ceramic sleeve is deposited into and temporarily supported within the trumpet. The combination of trumpet and sleeve is then maneuvered over a receiving spider on a sprue plate of an ingot mold system. Operators need only engage the combination when lowered into close proximity with the sprue plate.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: April 10, 1990
    Inventor: John K. Harabedian