Patents by Inventor Michael H. Duck

Michael H. Duck 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).

  • Automatic tube processing apparatus
    Patent number: 4671784
    Abstract: An automatic paper board tube reamer apparatus includes a tube index and feed assembly and a pair of tube end reamers. The reamers automatically simultaneously square the tube end surfaces and ream the internal diameter of each end of a tube aligned therewith by the feed assembly. The feed assembly automatically feeds the tube to the reamers and ejects the reamed tubes. The reamers and feed assembly operate alternatively and continuously to recycle damaged tubes fed thereto.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: June 9, 1987
    Assignee: Coronet Industries, Inc.
    Inventor: Michael H. Duck