Patents by Inventor Spencer Dale Johnson

Spencer Dale Johnson 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 SYSTEMS, AGRICULTURAL VEHICLES, AND RELATED METHODS
    Publication number: 20230202397
    Abstract: A ladder system includes a rail, a ladder bracket supported by and configured to slide along the first rail and the second rail, a ladder coupled to the ladder bracket and configured to rotate with respect to the ladder bracket between a lowered position and a storage position, and a bumper coupled to the ladder and configured to apply a force to a bumper stop when the ladder is in the lowered position to keep the ladder bracket from sliding along the rail. An agricultural vehicle includes a chassis supported by a plurality of wheels, and a ladder system carried by the chassis. Related methods are also disclosed.
    Type: Application
    Filed: February 20, 2023
    Publication date: June 29, 2023
    Inventors: Mark Aron Crowley, Spencer Dale Johnson
  • Ladder systems, agricultural vehicles, and related methods
    Patent number: 11634082
    Abstract: A ladder system includes a fixed support, a ladder bracket supported by the fixed support, a ladder coupled to the ladder bracket and configured to rotate with respect to the ladder bracket between a lowered position and a storage position, and an air spring coupling the ladder to the ladder bracket and configured to apply a force to the ladder when the ladder is in the lowered position to keep the ladder in the lowered position. An agricultural vehicle includes a chassis supported by a plurality of wheels, and a ladder system carried by the chassis. Related methods are also disclosed.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: April 25, 2023
    Assignee: AGCO CORPORATION
    Inventors: Mark Aron Crowley, Spencer Dale Johnson
  • LADDER SYSTEMS, AGRICULTURAL VEHICLES, AND RELATED METHODS
    Publication number: 20220242321
    Abstract: A ladder system includes a fixed support, a ladder bracket supported by the fixed support, a ladder coupled to the ladder bracket and configured to rotate with respect to the ladder bracket between a lowered position and a storage position, and an air spring coupling the ladder to the ladder bracket and configured to apply a force to the ladder when the ladder is in the lowered position to keep the ladder in the lowered position. An agricultural vehicle includes a chassis supported by a plurality of wheels, and a ladder system carried by the chassis. Related methods are also disclosed.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 4, 2022
    Inventors: Mark Aron CROWLEY, Spencer Dale Johnson
  • Ladder systems, agricultural vehicles, and related methods
    Patent number: 11332076
    Abstract: A ladder system includes a first rail, a second rail parallel to the first rail, a ladder bracket supported by and configured to slide along the first rail and the second rail, a ladder coupled to the ladder bracket and configured to rotate with respect to the ladder bracket between a lowered position and a storage position, and an air spring coupling the ladder to the ladder bracket and configured to apply a force to the ladder when the ladder is in the lowered position to keep the ladder in the lowered position. Another ladder system includes a rail, a bumper stop below the rail, a ladder bracket, a ladder, a bumper, and an air spring. An agricultural vehicle includes a chassis supported by a plurality of wheels, and a ladder system carried by the chassis. Related methods are also disclosed.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: May 17, 2022
    Assignee: AGCO CORPORATION
    Inventors: Mark Aron Crowley, Spencer Dale Johnson
  • LADDER SYSTEMS, AGRICULTURAL VEHICLES, AND RELATED METHODS
    Publication number: 20210024004
    Abstract: A ladder system includes a first rail, a second rail parallel to the first rail, a ladder bracket supported by and configured to slide along the first rail and the second rail, a ladder coupled to the ladder bracket and configured to rotate with respect to the ladder bracket between a lowered position and a storage position, and an air spring coupling the ladder to the ladder bracket and configured to apply a force to the ladder when the ladder is in the lowered position to keep the ladder in the lowered position. Another ladder system includes a rail, a bumper stop below the rail, a ladder bracket, a ladder, a bumper, and an air spring. An agricultural vehicle includes a chassis supported by a plurality of wheels, and a ladder system carried by the chassis. Related methods are also disclosed.
    Type: Application
    Filed: July 24, 2020
    Publication date: January 28, 2021
    Inventors: Mark Aron Crowley, Spencer Dale Johnson