Patents by Inventor Derek Ellington

Derek Ellington 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: 9161631
    Abstract: An adjustment mechanism for an office chair is disclosed. The adjustment mechanism may be used to adjust a height or position of an adjustable member of the chair. The adjustment mechanism can include an adjusting rod threaded through at least one, and in some arrangements two, adjusting members, the adjusting members each having a straight portion and a curved portion, the curved portion of each adjusting member received within a slot of a spreading member such that movement of the spreading member toward the adjusting rod spreads apart the adjusting members, creating a clamping force on the adjusting rod to set the height or position of the adjustable member of the chair.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: October 20, 2015
    Assignee: ANTHRO INTERNATIONAL INCORPORATED
    Inventor: Derek Ellington
  • Publication number: 20150001902
    Abstract: An adjustment mechanism for an office chair is disclosed. The adjustment mechanism may be used to adjust a height or position of an adjustable member of the chair. The adjustment mechanism can include an adjusting rod threaded through at least one, and in some arrangements two, adjusting members, the adjusting members each having a straight portion and a curved portion, the curved portion of each adjusting member received within a slot of a spreading member such that movement of the spreading member toward the adjusting rod spreads apart the adjusting members, creating a clamping force on the adjusting rod to set the height or position of the adjustable member of the chair.
    Type: Application
    Filed: June 24, 2014
    Publication date: January 1, 2015
    Inventor: Derek Ellington