Patents by Inventor Terrold L. Dahl

Terrold L. Dahl 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).

  • Patent number: 5429228
    Abstract: A business card carousel index system having a housing comprised of a base and a lid. The housing encloses a carousel to which business cards are mounted. The carousel is attached through support and placement arms through the lid and a base so that operation of the lid will alter the distance between the carousel and the base. In use, a business card may be punched utilizing a flexing device located at the front of the housing, after which the punched card may be placed upon rings on the carousel. When a user wishes to access the cards contained within the housing, the lid of the housing is lifted thereby elevating the carousel above the base of the housing, so that rotational movement will be allowed.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: July 4, 1995
    Inventor: Terrold L. Dahl