Patents by Inventor Richard Marvelli

Richard Marvelli 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).

  • Limited slip clutch for preventing videotape breakage in a video cassette
    Patent number: 4725016
    Abstract: A limited slip clutch for preventing videotape breakage in a video cassette is provided and consists of a friction exerting member positioned between a moveable spline hub and a spool in the video cassette which will allow the hub to continue to turn when the spool stops short at the end of the videotape.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: February 16, 1988
    Inventor: Richard Marvelli