Patents by Inventor Patrick H. Cooperman

Patrick H. Cooperman 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).

  • Tunable drum
    Patent number: 5517890
    Abstract: The invention is a tunable drum including a moveable bearing member positioned under the drum head and above the drum body, at least one alignment peg located between the bearing member and the drum body, and a mechanism engaging the moveable bearing member for moving the bearing member relative to the drum body so as to adjust the tension in the head.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: May 21, 1996
    Assignee: Cooperman Fife & Drum Co., Inc.
    Inventor: Patrick H. Cooperman