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公开(公告)号：US11725512B2
公开(公告)日：2023-08-15
申请号：US17745561
申请日：2022-05-16
发明人： Russell P. Smith , Andrew D. Hunter , Peter A. Lugg , Ian B. Schirmer , Geoffrey W. Keech , Christopher Coates , Bradley M. Neilson
IPC分类号： E21C25/16 , E21C41/16 , E21C25/06 , E21C35/00 , E21C27/16 , E21C31/02 , E21D9/10 , E21C35/24 , E21C35/23
CPC分类号： E21C25/16 , E21C25/06 , E21C27/16 , E21C31/02 , E21C35/00 , E21C35/23 , E21C35/24 , E21C41/16 , E21D9/102
摘要： 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.
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公开(公告)号：US20220349306A1
公开(公告)日：2022-11-03
申请号：US17745561
申请日：2022-05-16
发明人： Russell P. Smith , Andrew D. Hunter , Peter A. Lugg , Ian B. Schirmer , Geoffrey W. Keech , Christopher Coates , Bradley M. Neilson
摘要： 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.
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公开(公告)号：US11371346B2
公开(公告)日：2022-06-28
申请号：US16678656
申请日：2019-11-08
发明人： Russell P. Smith , Andrew D. Hunter , Peter A. Lugg , Ian B. Schirmer , Geoffrey W. Keech , Christopher Coates , Bradley M. Neilson
IPC分类号： E21C35/24 , E21C35/00 , E21C25/06 , E21C41/16 , E21C25/16 , E21C27/16 , E21C31/02 , E21D9/10
摘要： 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.
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公开(公告)号：US20200072050A1
公开(公告)日：2020-03-05
申请号：US16678656
申请日：2019-11-08
发明人： Russell P. Smith , Andrew D. Hunter , Peter A. Lugg , Ian B. Schirmer , Geoffrey W. Keech , Christopher Coates , Bradley M. Neilson
IPC分类号： E21C25/16 , E21B19/08 , E21D9/10 , E21C31/02 , E21C27/16 , E21C41/16 , E21C35/00 , E21C25/06
摘要： 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.
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公开(公告)号：US20240125232A1
公开(公告)日：2024-04-18
申请号：US18349574
申请日：2023-07-10
发明人： Russell P. Smith , Andrew D. Hunter , Peter A. Lugg , Ian B. Schirmer , Geoffrey W. Keech , Christopher Coates , Bradley M. Neilson
IPC分类号： E21C25/16
摘要： 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.
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公开(公告)号：US11339657B2
公开(公告)日：2022-05-24
申请号：US16678656
申请日：2019-11-08
发明人： Russell P. Smith , Andrew D. Hunter , Peter A. Lugg , Ian B. Schirmer , Geoffrey W. Keech , Christopher Coates , Bradley M. Neilson
IPC分类号： E21C35/24 , E21C35/00 , E21C25/06 , E21C41/16 , E21C25/16 , E21C27/16 , E21C31/02 , E21D9/10
摘要： 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.
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