Patents by Inventor Douglas R. Graf

Douglas R. Graf 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).

  • Surface mount slide-out system
    Patent number: 6497449
    Abstract: A surface mount slide-out support system has rollers rotatably mounted to its side walls spaced apart and received in inwardly opening U-shaped channels of a frame. The channels have gear racks affixed to than with pinion gears meshing with die racks on a common shaft and an electric motor driving the shaft. Nylon bearings between the rails and the rollers help prevent racking.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: December 24, 2002
    Assignee: Actuant Corporation
    Inventors: Douglas R. Graf, Robert H. Schneider
  • Narrow width slide-out room support system
    Patent number: 6454336
    Abstract: The present invention provides a slide-out support rail, which is particularly adapted for use as a single set of rails, which may be power operated or manually operated. The slide-out support rail system has an inner telescoping rail with a gear rack mounted on top of the upper wall of the inner rail. The teeth of the gear rack face upwardly and mesh with a pinion gear which is journaled relative to the outer rail above the gear rack.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: September 24, 2002
    Assignee: Actuant Corporation
    Inventors: Timothy L. Nye, Robert D. Spore, Douglas R. Graf
  • NARROW WIDTH SLIDE-OUT ROOM SUPPORT SYSTEM
    Publication number: 20020047286
    Abstract: The present invention provides a slide-out support rail, which is particularly adapted for use as a single set of rails, which may be power operated or manually operated. The slide-out support rail system has an inner telescoping rail with a gear rack mounted on top of the upper wall of the inner rail. The teeth of the gear rack face upwardly and mesh with a pinion gear which is journaled relative to the outer rail above the gear rack.
    Type: Application
    Filed: April 13, 2001
    Publication date: April 25, 2002
    Inventors: Timothy L. Nye, Robert D. Spore, Douglas R. Graf
  • Surface mount slide-out system
    Publication number: 20020041104
    Abstract: A surface mount slide-out support system has rollers rotatably mounted to its side walls spaced apart and received in inwardly opening U-shaped channels of a frame. The channels have gear racks affixed to them with pinion gears meshing with the racks on a common shaft and an electric motor driving the shaft. Nylon bearings between the rails and the rollers help prevent racking.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 11, 2002
    Inventors: Douglas R. Graf, Robert H. Schneider