Patents by Inventor Aaron B. Lian

Aaron B. Lian 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: 8572870
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: November 5, 2013
    Assignee: ESCO Corporation
    Inventors: Kenneth Kudo, Steven D. Hyde, Aaron B. Lian
  • Publication number: 20120317847
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
  • Patent number: 8250785
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: August 28, 2012
    Assignee: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D Hyde, Aaron B Lian
  • Patent number: 7874086
    Abstract: A locking assembly for retaining a wear member to excavating equipment has a locking element that is received into an opening in the assembly and is movable about a pivot axis in the opening between a hold position and a release position. The locking element has an outer edge that is generally opposite the pivot axis that opposes a base surface of the opening when the locking element is in the hold position. The outer edge is configured to pull away from the base surface when the locking element is rotated from the hold position toward the release position.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: January 25, 2011
    Assignee: Esco Corporation
    Inventors: Terry L. Briscoe, Christopher M. Carpenter, Aaron B. Lian
  • Publication number: 20100269378
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Application
    Filed: July 8, 2010
    Publication date: October 28, 2010
    Applicant: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
  • Patent number: 7774959
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 17, 2010
    Assignee: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D Hyde, Aaron B Lian
  • Publication number: 20090183397
    Abstract: A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Applicant: ESCO Corporation
    Inventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
  • Publication number: 20080263913
    Abstract: A locking assembly for retaining a wear member to excavating equipment has a locking element that is received into an opening in the assembly and is movable about a pivot axis in the opening between a hold position and a release position. The locking element has an outer edge that is generally opposite the pivot axis that opposes a base surface of the opening when the locking element is in the hold position. The outer edge is configured to pull away from the base surface when the locking element is rotated from the hold position toward the release position.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 30, 2008
    Applicant: ESCO Corporation
    Inventors: Terry L. Briscoe, Christopher M. Carpenter, Aaron B. Lian
  • Publication number: 20070240340
    Abstract: A UDD bucket for a UDD mining operation provided with multiple hoist connection points that alternative couple to the front and/or rear hoist lines. The UDD mining machine includes a control system that directs the movement of the bucket within a prescribed carry envelope to limit unequal wearing of the hoist lines or minimize the magnitude of rope loads. In one construction, the control system directs the movement of the bucket with a range of motion where the loads on the hoist lines are kept within a prescribed variance of each other during the carry phase or most of the carry phase of a digging cycle. The bucket will be moved by the mining machine with the inventive control system so that, in the carry phase, the loads applied to the front hoist line are within, for example, 5%, 10% or 15% of the loads applied to the rear hoist lines.
    Type: Application
    Filed: October 23, 2006
    Publication date: October 18, 2007
    Applicant: ESCO Corporation
    Inventors: Steven D. Hyde, Aaron B. Lian, Allison M. Daus
  • Patent number: 7144183
    Abstract: A locking assembly has two members which are moveable into coupling engagement with one another. The two members have lock engaging walls, and one of the members has an opening between the lock engaging walls for receiving a lock. The lock comprises a lock body and a retainer. The lock body has a channel for receiving a portion of the retainer. An end of the retainer extends underneath a retainer engaging wall, thus resisting movement of the lock out of the opening.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: December 5, 2006
    Assignee: ESCO Corporation
    Inventors: Aaron B. Lian, Christopher M. Carpenter, Emory D. Hungerford, deceased, Lorraine R. Hungerford, legal representative, Ray J. Morris
  • Publication number: 20040037637
    Abstract: A locking assembly has two members which are moveable into coupling engagement with one another. The two members have lock engaging walls, and one of the members has an opening between the lock engaging walls for receiving a lock. The lock comprises a lock body and a retainer. The lock body has a channel for receiving a portion of the retainer. An end of the retainer extends underneath a retainer engaging wall, thus resisting movement of the lock out of the opening.
    Type: Application
    Filed: July 8, 2003
    Publication date: February 26, 2004
    Inventors: Aaron B. Lian, Christopher M. Carpenter, Emory D. Hungerford, Ray J. Morris
  • Publication number: 20030007831
    Abstract: A locking assembly has two members which are moveable into coupling engagement with one another. The two members have lock engaging walls, and one of the members has an opening between the lock engaging walls for receiving a lock. The lock comprises a lock body and a retainer. The lock body has a channel for receiving a portion of the retainer. An end of the retainer extends underneath a retainer engaging wall, thus resisting movement of the lock out of the opening.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 9, 2003
    Inventors: Aaron B. Lian, Christopher M. Carpenter, Emory D. Hungerford, Ray J. Morris