Patents by Inventor Jason Ian Lunn

Jason Ian Lunn 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).

  • Dragline excavator bucket
    Patent number: 7721473
    Abstract: A bucket for a dragline has a pivoted mounting by having two spaced pivotal arms, typically of arcuate or cranked form, pivotally connected to the outside of a rear wall of the bucket about pivot axes extending transverse to the bucket and below the upper rim of the bucket whereby pivotal connections at the upper end of each pivot arm may be disposed over the rim and within the bucket zone. Thus the pivot arms may be moved in use through greater than 90° from a position in which the bucket is vertically suspended. The pivot arms act to spread splayed hoist chains without a spreader bar.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: May 25, 2010
    Assignee: Bradken Resources Pty Limited
    Inventor: Jason Ian Lunn
  • DRAGLINE EXCAVATOR BUCKET
    Publication number: 20090139118
    Abstract: A bucket for a dragline has a pivoted mounting by having two spaced pivotal arms, typically of arcuate or cranked form, pivotally connected to the outside of a rear wall of the bucket about pivot axes extending transverse to the bucket and below the upper rim of the bucket whereby pivotal connections at the upper end of each pivot arm may be disposed over the rim and within the bucket zone. Thus the pivot arms may be moved in use through greater than 90° from a position in which the bucket is vertically suspended. The pivot arms act to spread splayed hoist chains without a spreader bar.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 4, 2009
    Applicant: BRADKEN RESOURCES PTY LIMITED
    Inventor: Jason Ian LUNN