Patents by Inventor Donald L. Hummel, Jr.

Donald L. Hummel, Jr. 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).

  • Compact disk lifting device
    Patent number: 5195794
    Abstract: A lifting device for lifting and releasing a compact disk. The lifting device including a pair of fins extended by a plunger and retracted by an O-ring contacting the fins at their outer edge.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: March 23, 1993
    Assignee: KIS Products
    Inventors: Donald L. Hummel, Jr., Michael Bacon