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).
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Patent number: 8572870Abstract: 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: GrantFiled: August 27, 2012Date of Patent: November 5, 2013Assignee: ESCO CorporationInventors: Kenneth Kudo, Steven D. Hyde, Aaron B. Lian
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Publication number: 20120317847Abstract: 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: ApplicationFiled: August 27, 2012Publication date: December 20, 2012Applicant: ESCO CorporationInventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
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Patent number: 8250785Abstract: 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: GrantFiled: July 8, 2010Date of Patent: August 28, 2012Assignee: ESCO CorporationInventors: Kenneth Kubo, Steven D Hyde, Aaron B Lian
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Patent number: 7874086Abstract: 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: GrantFiled: April 24, 2007Date of Patent: January 25, 2011Assignee: Esco CorporationInventors: Terry L. Briscoe, Christopher M. Carpenter, Aaron B. Lian
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Publication number: 20100269378Abstract: 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: ApplicationFiled: July 8, 2010Publication date: October 28, 2010Applicant: ESCO CorporationInventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
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Patent number: 7774959Abstract: 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: GrantFiled: January 21, 2009Date of Patent: August 17, 2010Assignee: ESCO CorporationInventors: Kenneth Kubo, Steven D Hyde, Aaron B Lian
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Publication number: 20090183397Abstract: 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: ApplicationFiled: January 21, 2009Publication date: July 23, 2009Applicant: ESCO CorporationInventors: Kenneth Kubo, Steven D. Hyde, Aaron B. Lian
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Publication number: 20080263913Abstract: 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: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Applicant: ESCO CorporationInventors: Terry L. Briscoe, Christopher M. Carpenter, Aaron B. Lian
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Publication number: 20070240340Abstract: 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: ApplicationFiled: October 23, 2006Publication date: October 18, 2007Applicant: ESCO CorporationInventors: Steven D. Hyde, Aaron B. Lian, Allison M. Daus
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Patent number: 7144183Abstract: 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: GrantFiled: July 8, 2003Date of Patent: December 5, 2006Assignee: ESCO CorporationInventors: Aaron B. Lian, Christopher M. Carpenter, Emory D. Hungerford, deceased, Lorraine R. Hungerford, legal representative, Ray J. Morris
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Publication number: 20040037637Abstract: 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: ApplicationFiled: July 8, 2003Publication date: February 26, 2004Inventors: Aaron B. Lian, Christopher M. Carpenter, Emory D. Hungerford, Ray J. Morris
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Publication number: 20030007831Abstract: 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: ApplicationFiled: July 6, 2001Publication date: January 9, 2003Inventors: Aaron B. Lian, Christopher M. Carpenter, Emory D. Hungerford, Ray J. Morris