Patents by Inventor Elliot J. Haag

Elliot J. Haag 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).

  • Ladder accessory
    Patent number: 8074769
    Abstract: A device is provided for aiding a user in transporting a load up and down a ladder assembly. The ladder assembly includes a fly ladder having slidably connected to a base ladder. Each ladder includes first and second spaced rails interconnected by a plurality of spaced rungs. The device has a frame assembly including a first subframe positionable adjacent the first rail of the base ladder and a second subframe positionable adjacent the second rail of the base ladder. First and second base ladder guides are operatively connected to each subframe and define tracks for receiving the rails of the base ladder therebetween. First and second fly ladder guides are operatively connected to the subframes and defines tracks for receiving the rails of the fly ladder therebetween.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: December 13, 2011
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Michael W. Sracic, Daniel J. Goesch, Logan J. Hamel, Elliot J. Haag, David J. Tengler
  • LADDER ACCESSORY
    Publication number: 20090057057
    Abstract: A device is provided for aiding a user in transporting a load up and down a ladder assembly. The ladder assembly includes a fly ladder having slidably connected to a base ladder. Each ladder includes first and second spaced rails interconnected by a plurality of spaced rungs. The device has a frame assembly including a first subframe positionable adjacent the first rail of the base ladder and a second subframe positionable adjacent the second rail of the base ladder. First and second base ladder guides are operatively connected to each subframe and define tracks for receiving the rails of the base ladder therebetween. First and second fly ladder guides are operatively connected to the subframes and defines tracks for receiving the rails of the fly ladder therebetween.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 5, 2009
    Inventors: Michael W. Sracic, Daniel J. Goesch, Logan J. Hamel, Elliot J. Haag, David J. Tengler