Patents by Inventor Karl A. Ruggeberg

Karl A. Ruggeberg 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: 5192150
    Abstract: The computer keyboard template selector is an apparatus which attaches to a computer keyboard to hold a plurality of computer keyboard templates. The apparatus includes a body and a lid, wherein the lid is urged upwardly to an open position by a wrap spring and held in a closed position by a detent structure. Several rotatable separator sheets with staggered laterally extending tabs are enclosed in the apparatus. Each separator sheet holds a computer keyboard template. The staggered laterally extending tabs form an inverted stair structure so that a lifting device can be positioned under a laterally extending tab so as to lift a number of separator sheets when the detent structure is released and the lid is opened thereby exposing a selected computer keyboard template.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: March 9, 1993
    Inventor: Karl A. Ruggeberg