Patents by Inventor Gary-Michael Dahl

Gary-Michael Dahl 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: 7490847
    Abstract: Disclosed is a lightweight caster assembly and modular shelf system for use on an existing collapsible foldable cart with four wheels.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 17, 2009
    Inventor: Gary Michael Dahl
  • Patent number: 7437801
    Abstract: Disclosed is a lightweight caster assembly and modular shelf system for use on an existing collapsible foldable cart with four wheels.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: October 21, 2008
    Inventor: Gary Michael Dahl
  • Patent number: 6966574
    Abstract: A multi-functional cart for transporting objects including a frame, a first handle connected to the frame adjacent a first end of the frame, a second handle connected to the frame adjacent a second end of the frame, a first pair of wheels connected to the frame adjacent the first end of the frame and a second pair of wheels connected to the frame adjacent the second end of the frame. The handles are different sizes and are selectively movable between perpendicular to the frame and coplanar to the frame. The frame has a generally rectangular configuration and includes frame members which are telescopically connected to each other. The multi-functional cart transforms into eight or more configurations.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: November 22, 2005
    Inventor: Gary-Michael Dahl
  • Publication number: 20020105169
    Abstract: A convertible cart for transporting objects including a frame, a first handle connected to the frame adjacent a first end of the frame, a second handle connected to the frame adjacent a second end of the frame, a first plurality of wheels connected to the frame adjacent the first end of the frame and a second plurality of wheels connected to the frame adjacent the second end of the frame. The first plurality of wheels are rotatably mounted to a tubular axle. The first plurality of wheels are casters rotatably interconnected to the frame. The handles are selectively movable between a first position perpendicular to the frame and a second position generally coplanar to the frame. The frame has a generally rectangular configuration and includes frame members which are telescopically connected to each other.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 8, 2002
    Inventor: Gary-Michael Dahl
  • Patent number: 5476282
    Abstract: A convertible cart for transporting objects having a frame, a first handle connected to the frame, a second handle connected adjacent an opposite end of the frame, a plurality of wheels attached to the frame. Each of the handles is selectively movable between a first position generally perpendicular to the frame and a second position generally aligned with the frame. The wheels support the frame at a position parallel to the surface on which the wheels are placed. The frame has a longitudinal member extending centrally of the frame. The longitudinal member has an end offset from overlapping relationship with one end of the frame. A snap button is provided within the longitudinal member so as to limit telescoping movement of one portion of the longitudinal member with respect to another portion.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: December 19, 1995
    Inventor: Gary-Michael Dahl
  • Patent number: 5228716
    Abstract: A convertible cart for transporting objects having a frame, a first handle connected to the frame, a second handle connected adjacent an opposite end of the frame, a pair of primary wheels attached to the frame, and at least one secondary wheel attached to an opposite end of the frame. Each of the handles is selectively movable between a first position generally perpendicular to the frame and a second position generally aligned with the frame. The primary wheels and secondary wheel support the frame at a position parallel to the surface on which the wheels are placed. A locking mechanism is provided for the handles which includes a first and second axle members extending inwardly on opposite sides of the frame, a first stop member fastened to the frame so as to abut a surface of the handle, and a cord extending across the handle so as to cause the handle to move along a slide surface of the axle members.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: July 20, 1993
    Inventor: Gary-Michael Dahl