Patents by Inventor Fred Hartmann

Fred Hartmann 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).

  • Publication number: 20080042381
    Abstract: A pallet jack having first and second turn radii includes a support frame having a first end and a second end. The support frame is positionable between a raised position and a lowered position. A main wheel connects to the support frame proximate the first end while a first extensible wheel connects to the support frame proximate the second end. The distance between the main wheel and the extensible wheel define the first turn radius when the support frame is in the raised position. A ground engaging device attaches to the support frame between the main wheel and the first extensible wheel. Positioning the support frame towards the lowered position, the ground engageable device engages the ground and the extensible wheel disengages the ground. The second turn radius is thereby defined by the distance between the main wheel and the ground engaging device, which is less than the first turn radius.
    Type: Application
    Filed: October 30, 2007
    Publication date: February 21, 2008
    Applicant: GRAND STEER INC.
    Inventors: Fred Hartmann, Allen Aaseby
  • Publication number: 20070284838
    Abstract: A steering device for decreasing a turning radius of a pallet jack includes a ground engaging member connected to a support member of the pallet jack between a main wheel and an extensible wheel. The load supporting member of the pallet jack is positionable between a raised position and a lowered position. A first turning radius of the pallet jack is defined by the distance between the main wheel and the extensible wheel. While the extensible wheel engages the ground when the support frame is positioned towards the raised position, positioning the support member towards the lowered position engages the ground engageable member with the ground causing the extensible wheel to disengage the ground. The main wheel and the ground engageable member then define a second turning radius which is less than the first turning radius.
    Type: Application
    Filed: April 19, 2007
    Publication date: December 13, 2007
    Inventors: Fred Hartmann, Allen Aaseby
  • Publication number: 20060125196
    Abstract: A steering device for decreasing a turning radius of a pallet jack includes a ground engaging member connected to a support member of the pallet jack between a main wheel and an extensible wheel. The load supporting member of the pallet jack is positionable between a raised position and a lowered position. A first turning radius of the pallet jack is defined by the distance between the main wheel and the extensible wheel. While the extensible wheel engages the ground when the support frame is positioned towards the raised position, positioning the support member towards the lowered position engages the ground engageable member with the ground causing the extensible wheel to disengage the ground. The main wheel and the ground engageable member then define a second turning radius which is less than the first turning radius.
    Type: Application
    Filed: December 15, 2004
    Publication date: June 15, 2006
    Inventors: Fred Hartmann, Allen Aaseby
  • Publication number: 20050002766
    Abstract: A hand-truck for supporting and transporting the load placed thereon includes a stowable handle. The stowable handle is positionable between a stowed position, a locked position and an infinite number of positions therebetween. The handle is accessible by a user at each position. The hand-truck can transport a load by hand and is accessible to be lifted by a forklift from any side.
    Type: Application
    Filed: July 2, 2003
    Publication date: January 6, 2005
    Applicant: Grand Steer Inc.
    Inventors: Fred Hartmann, Allen Aaseby