Patents by Inventor Geoffrey W. Keech
Geoffrey W. Keech 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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Publication number: 20240125232Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.Type: ApplicationFiled: July 10, 2023Publication date: April 18, 2024Inventors: Russell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
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Patent number: 11846190Abstract: A rock excavating device includes a shaft and a cutting element. The shaft includes a first portion and a second portion connected to an end of the first portion. The first portion is rotatable about a first axis. The second portion extends along a second axis that is oblique with respect to the first axis. The cutting element includes a cutting edge. The cutting element is supported on the second portion and rotatable about the second axis. Rotation of the first portion of the shaft about the first axis changes the orientation of the second axis and the cutting element.Type: GrantFiled: October 29, 2019Date of Patent: December 19, 2023Assignee: JOY GLOBAL UNDERGROUND MINING LLCInventors: Peter A. Lugg, Geoffrey W. Keech
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Patent number: 11725512Abstract: A method for removing material from a rock wall. The method includes moving a cutting edge through the rock wall to create a first slot in the rock wall, moving the cutting edge through the rock wall to create a second slot in the rock wall, the second slot being separated from the first slot by an uncut portion, the uncut portion defining a base surface attached to the wall, cutting a notch into the base surface of the uncut portion, and applying a force on the uncut portion to break the uncut portion away from the wall.Type: GrantFiled: May 16, 2022Date of Patent: August 15, 2023Assignee: Joy Global Underground Mining LLCInventors: Russell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
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Patent number: 11598208Abstract: A machine for excavating rock includes a frame, a cutting device, and a boom. The cutting device includes a cutting disc having a cutting edge, and the cutting disc is rotatable about a cutting device axis. The boom supports the cutting device and includes a first end, a second end, and a boom axis substantially parallel to the cutting device axis. The boom further includes a first portion and a second portion. The first portion is coupled to the frame for rotation about a first pivot axis between a raised position and a lowered position. The second portion is coupled to the cutting device, and the second portion is pivotable about a second pivot axis between a raised position and a lowered position.Type: GrantFiled: November 1, 2021Date of Patent: March 7, 2023Assignee: Joy Global Underground Mining LLCInventors: Peter A. Lugg, Geoffrey W. Keech, Stuart Reeves, Nagy Daher
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Publication number: 20220349306Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.Type: ApplicationFiled: May 16, 2022Publication date: November 3, 2022Inventors: Russell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
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Patent number: 11371346Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.Type: GrantFiled: November 8, 2019Date of Patent: June 28, 2022Assignee: Joy Global Underground Mining LLCInventors: Russell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
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Patent number: 11339657Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.Type: GrantFiled: November 8, 2019Date of Patent: May 24, 2022Assignee: Joy Global Underground Mining LLCInventors: Russell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
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Publication number: 20220049605Abstract: A machine for excavating rock includes a frame, a cutting device, and a boom. The cutting device includes a cutting disc having a cutting edge, and the cutting disc is rotatable about a cutting device axis. The boom supports the cutting device and includes a first end, a second end, and a boom axis substantially parallel to the cutting device axis. The boom further includes a first portion and a second portion. The first portion is coupled to the frame for rotation about a first pivot axis between a raised position and a lowered position. The second portion is coupled to the cutting device, and the second portion is pivotable about a second pivot axis between a raised position and a lowered position.Type: ApplicationFiled: November 1, 2021Publication date: February 17, 2022Inventors: Peter A. Lugg, Geoffrey W. Keech, Stuart Reeves, Nagy Daher
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Patent number: 11203930Abstract: A machine for excavating rock includes a frame, a cutting device, and a boom. The cutting device includes a cutting disc having a cutting edge, and the cutting disc is rotatable about a cutting device axis. The boom supports the cutting device and includes a first end, a second end, and a boom axis substantially parallel to the cutting device axis. The boom further includes a first portion and a second portion. The first portion is coupled to the frame for rotation about a first pivot axis between a raised position and a lowered position. The second portion is coupled to the cutting device, and the second portion is pivotable about a second pivot axis between a raised position and a lowered position.Type: GrantFiled: February 3, 2020Date of Patent: December 21, 2021Assignee: JOY GLOBAL UNDERGROUND MINING LLCInventors: Peter A. Lugg, Geoffrey W. Keech, Stuart Reeves, Nagy Daher
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Patent number: 10876399Abstract: A mining machine includes a frame, a boom supported for pivoting movement relative to the frame, and a cutter head pivotably coupled to the boom. The cutter head includes a housing, a cutter shaft coupled to the housing, a cutting disc, and an excitation mechanism. A second portion of the cutter shaft extends parallel to a cutter axis. The cutting disc is coupled to the second portion of the cutter shaft and is supported for free rotation relative to the cutter shaft about the cutter axis. The cutting disc includes a plurality of cutting bits defining a cutting edge. The excitation mechanism includes an exciter shaft and a mass eccentrically coupled to the cutter shaft. The excitation mechanism is coupled to the first portion of the cutter shaft. Rotation of the exciter shaft induces oscillating movement of the second portion of the cutter shaft and the cutting disc.Type: GrantFiled: September 16, 2019Date of Patent: December 29, 2020Assignee: Joy Global Underground Mining LLCInventors: Peter A. Lugg, Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd
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Publication number: 20200173277Abstract: A machine for excavating rock includes a frame, a cutting device, and a boom. The cutting device includes a cutting disc having a cutting edge, and the cutting disc is rotatable about a cutting device axis. The boom supports the cutting device and includes a first end, a second end, and a boom axis substantially parallel to the cutting device axis. The boom further includes a first portion and a second portion. The first portion is coupled to the frame for rotation about a first pivot axis between a raised position and a lowered position. The second portion is coupled to the cutting device, and the second portion is pivotable about a second pivot axis between a raised position and a lowered position.Type: ApplicationFiled: February 3, 2020Publication date: June 4, 2020Inventors: Peter A. Lugg, Geoffrey W. Keech, Stuart Reeves, Nagy Daher
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Publication number: 20200072050Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.Type: ApplicationFiled: November 8, 2019Publication date: March 5, 2020Inventors: Russell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
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Publication number: 20200063554Abstract: A rock excavating device includes a shaft and a cutting element. The shaft includes a first portion and a second portion connected to an end of the first portion. The first portion is rotatable about a first axis. The second portion extends along a second axis that is oblique with respect to the first axis. The cutting element includes a cutting edge. The cutting element is supported on the second portion and rotatable about the second axis. Rotation of the first portion of the shaft about the first axis changes the orientation of the second axis and the cutting element.Type: ApplicationFiled: October 29, 2019Publication date: February 27, 2020Inventors: Peter A. Lugg, Geoffrey W. Keech
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Patent number: 10550693Abstract: A machine for excavating rock includes a frame, a cutting device, and a boom. The cutting device includes a cutting disc having a cutting edge, and the cutting disc is rotatable about a cutting device axis. The boom supports the cutting device and includes a first end, a second end, and a boom axis substantially parallel to the cutting device axis. The boom further includes a first portion and a second portion. The first portion is coupled to the frame for rotation about a first pivot axis between a raised position and a lowered position. The second portion is coupled to the cutting device, and the second portion is pivotable about a second pivot axis between a raised position and a lowered position.Type: GrantFiled: September 22, 2017Date of Patent: February 4, 2020Assignee: Joy Global Underground Mining LLCInventors: Peter A. Lugg, Geoffrey W. Keech
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Patent number: 10533416Abstract: A rock excavating device includes a shaft and a cutting element. The shaft includes a first portion and a second portion connected to an end of the first portion. The first portion is rotatable about a first axis. The second portion extends along a second axis that is oblique with respect to the first axis. The cutting element includes a cutting edge. The cutting element is supported on the second portion and rotatable about the second axis. Rotation of the first portion of the shaft about the first axis changes the orientation of the second axis and the cutting element.Type: GrantFiled: September 22, 2017Date of Patent: January 14, 2020Assignee: Joy Global Underground Mining LLCInventors: Peter A. Lugg, Geoffrey W. Keech
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Publication number: 20200011173Abstract: A mining machine includes a frame, a boom supported for pivoting movement relative to the frame, and a cutter head pivotably coupled to the boom. The cutter head includes a housing, a cutter shaft coupled to the housing, a cutting disc, and an excitation mechanism. A second portion of the cutter shaft extends parallel to a cutter axis. The cutting disc is coupled to the second portion of the cutter shaft and is supported for free rotation relative to the cutter shaft about the cutter axis. The cutting disc includes a plurality of cutting bits defining a cutting edge. The excitation mechanism includes an exciter shaft and a mass eccentrically coupled to the cutter shaft. The excitation mechanism is coupled to the first portion of the cutter shaft. Rotation of the exciter shaft induces oscillating movement of the second portion of the cutter shaft and the cutting disc.Type: ApplicationFiled: September 16, 2019Publication date: January 9, 2020Inventors: Peter A. Lugg, Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd
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Patent number: 10472961Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.Type: GrantFiled: September 15, 2016Date of Patent: November 12, 2019Assignee: Joy Global Underground Mining LLCInventors: Russell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
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Patent number: 10415384Abstract: A mining machine includes a frame, a boom supported for pivoting movement relative to the frame, and a cutter head pivotably coupled to the boom. The cutter head includes a housing, a cutter shaft coupled to the housing, a cutting disc, and an excitation mechanism. A second portion of the cutter shaft extends parallel to a cutter axis. The cutting disc is coupled to the second portion of the cutter shaft and is supported for free rotation relative to the cutter shaft about the cutter axis. The cutting disc includes a plurality of cutting bits defining a cutting edge. The excitation mechanism includes an exciter shaft and a mass eccentrically coupled to the cutter shaft. The excitation mechanism is coupled to the first portion of the cutter shaft. Rotation of the exciter shaft induces oscillating movement of the second portion of the cutter shaft and the cutting disc.Type: GrantFiled: January 27, 2017Date of Patent: September 17, 2019Assignee: Joy Global Underground Mining LLCInventors: Peter A. Lugg, Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd
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Publication number: 20180087380Abstract: A machine for excavating rock includes a frame, a cutting device, and a boom. The cutting device includes a cutting disc having a cutting edge, and the cutting disc is rotatable about a cutting device axis. The boom supports the cutting device and includes a first end, a second end, and a boom axis substantially parallel to the cutting device axis. The boom further includes a first portion and a second portion. The first portion is coupled to the frame for rotation about a first pivot axis between a raised position and a lowered position. The second portion is coupled to the cutting device, and the second portion is pivotable about a second pivot axis between a raised position and a lowered position.Type: ApplicationFiled: September 22, 2017Publication date: March 29, 2018Inventors: Peter A. Lugg, Geoffrey W. Keech, Stuart Reeves, Nagy Daher
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Publication number: 20180087379Abstract: A rock excavating device includes a shaft and a cutting element. The shaft includes a first portion and a second portion connected to an end of the first portion. The first portion is rotatable about a first axis. The second portion extends along a second axis that is oblique with respect to the first axis. The cutting element includes a cutting edge. The cutting element is supported on the second portion and rotatable about the second axis. Rotation of the first portion of the shaft about the first axis changes the orientation of the second axis and the cutting element.Type: ApplicationFiled: September 22, 2017Publication date: March 29, 2018Inventors: Peter A. Lugg, Geoffrey W. Keech