Patents by Inventor John E. Gustafson

John E. Gustafson 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: 20210163274
    Abstract: A lifting device for platforms carrying a load is disclosed. A winch or piston is engaged with two vertical arms connected to two horizontal arms configured for attaching to a load carrying assembly such that exerting an upward force on the two vertical arms causes the horizontal arms to pivot upward to lift the load carrying assembly which enables transporting the platform and the load on it to another location. The lifting device is configured to quickly attach to and detach from the load carrying platform and for maintaining a level position during transportation. The horizontal arms are configured for retracting and expending which enables the tilting of the load carrying assembly backward or forward as needed for improved transportation stability and load discharge.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Inventor: John E. Gustafson
  • Patent number: 10934147
    Abstract: A lifting device for platforms carrying a load is disclosed. A winch or piston is engaged with two vertical arms connected to two horizontal arms configured for attaching to a load carrying assembly such that exerting an upward force on the two vertical arms causes the horizontal arms to pivot upward to lift the load carrying assembly which enables transporting the platform and the load on it to another location. The lifting device is configured to quickly attach to and detach from the load carrying platform and for maintaining a level position during transportation. The horizontal arms are configured for retracting and extending which enables the tilting of the load carrying assembly backward or forward as needed for improved transportation stability and load discharge.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: March 2, 2021
    Inventor: John E Gustafson
  • Publication number: 20200115207
    Abstract: A lifting device for platforms carrying a load is disclosed. A winch or piston is engaged with two vertical arms connected to two horizontal arms configured for attaching to a load carrying assembly such that exerting an upward force on the two vertical arms causes the horizontal arms to pivot upward to lift the load carrying assembly which enables transporting the platform and the load on it to another location. The lifting device is configured to quickly attach to and detach from the load carrying platform and for maintaining a level position during transportation. The horizontal arms are configured for retracting and extending which enables the tilting of the load carrying assembly backward or forward as needed for improved transportation stability and load discharge.
    Type: Application
    Filed: October 15, 2018
    Publication date: April 16, 2020
    Inventor: John E. Gustafson
  • Patent number: 9487928
    Abstract: A receiver plate-coupler plate assembly for attaching an implement to a machine. The assembly includes a receiver plate member comprising a vertical plate section with at least three perimeter walls extending in a common direction to form a downward facing cavity there between. The vertical plate member attaches to a tool on a plate section surface opposite the perimeter walls. A coupler plate member comprises a vertical plate section positioned against the receiver plate member within the downwardly facing cavity thereof. At least one locking assembly on the coupler plate member reversibly engages the receiver plate member to maintain the coupler plate member within the downward facing cavity thereof. At least one connector assembly secured to the coupler plate member opposite the receiver plate member connects the receiver plate-coupler plate assembly to a machine.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: November 8, 2016
    Inventor: John E. Gustafson
  • Patent number: 9187874
    Abstract: A receiver plate-coupler plate assembly for attaching an implement to a machine. The assembly includes a receiver plate member comprising a vertical plate section with at least three perimeter walls extending in a common direction to form a downward facing cavity there between. The vertical plate member attaches to a tool on a plate section surface opposite the perimeter walls. A coupler plate member comprises a vertical plate section positioned against the receiver plate member within the downwardly facing cavity thereof. At least one locking assembly on the coupler plate member reversibly engages the receiver plate member to maintain the coupler plate member within the downward facing cavity thereof. At least one connector assembly secured to the coupler plate member opposite the receiver plate member connects the receiver plate-coupler plate assembly to a machine.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: November 17, 2015
    Inventor: John E. Gustafson
  • Patent number: 8763226
    Abstract: A receiver plate-coupler plate assembly for attaching an implement to a machine. The assembly includes a receiver plate member comprising a vertical plate section with at least three perimeter walls extending in a common direction to form a downward facing cavity there between. The vertical plate member attaches to a tool on a plate section surface opposite the perimeter walls. A coupler plate member comprises a vertical plate section positioned against the receiver plate member within the downwardly facing cavity thereof. At least one locking assembly on the coupler plate member reversibly engages the receiver plate member to maintain the coupler plate member within the downward facing cavity thereof. At least one connector assembly secured to the coupler plate member opposite the receiver plate member connects the receiver plate-coupler plate assembly to a machine.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: July 1, 2014
    Inventor: John E. Gustafson