Patents by Inventor Karl D. Weldin

Karl D. Weldin 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).

  • Cassette tape dust cover
    Patent number: 4333568
    Abstract: A case for tape cassettes comprising a holder for the cassette being in the form of a U-shaped container with enclosed ends which conforms to the configuration of the open side of a cassette and receives the cassette there between, and a flexible strap extending from one side of the U-shaped container and having two cams adapted to tightly fit into the spindle of the reels whereby the U-shaped container is held in place and the reels are prevented from rotating.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: June 8, 1982
    Assignee: Jerre E. Epps
    Inventor: Karl D. Weldin