Patents by Inventor Gale Dahlstrom

Gale Dahlstrom 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: 9555831
    Abstract: A tractor-trailer for hauling a load is provided which is convertible from a conventional steering arrangement to a stinger steering arrangement to maneuver relatively long loads around tighter corners, roundabouts and other obstacles. The tractor-trailer includes a rear wheel assembly with a telescoping reach and a towing tractor including a chassis and a stinger to selectively attach to the telescoping reach of the rear wheel assembly. The stinger is movably coupled to the chassis to move between a stowed configuration for conventional steering and a deployed configuration for stinger steering.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 31, 2017
    Inventor: Gale Dahlstrom
  • Patent number: 6295936
    Abstract: A portable tow device (20) for selective attachment to a tow line (24) having a length includes a handle (32). The tow device also includes a locking member (28) rotatably attached to the handle. The locking member includes first and second bearing members (28a) and (28b) and an elongate slot (42). The tow device further includes a lever arm (30) attached to the locking member for selectively rotating the locking member between a locked position, wherein the tow line is clamped between the first and second bearing members for propelling a person along a surface at a rate substantially equal to the rate of the tow line, and an unlocked position, wherein the tow line passes freely through the tow device.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: October 2, 2001
    Assignee: Thin Line Concepts, Inc.
    Inventor: Gale Dahlstrom