Patents by Inventor Nagy Daher
Nagy Daher 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: 11939868Abstract: A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.Type: GrantFiled: March 24, 2023Date of Patent: March 26, 2024Assignee: JOY GLOBAL UNDERGROUND MINING LLCInventors: Nagy Daher, Richard Boyd, Joaquim Antonio Soares de Sousa
-
Publication number: 20230228192Abstract: A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.Type: ApplicationFiled: March 24, 2023Publication date: July 20, 2023Inventors: Nagy Daher, Richard Boyd, Joaquim Antonio Soares de Sousa
-
Patent number: 11613993Abstract: A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.Type: GrantFiled: July 17, 2020Date of Patent: March 28, 2023Assignee: JOY GLOBAL UNDERGROUND MINING LLCInventors: Nagy Daher, Richard Boyd, Joaquim Antonio Soares de Sousa
-
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
-
Patent number: 11391149Abstract: A cutting assembly for a rock excavation machine including a frame. The cutting assembly includes a boom supported on the frame and a cutting device. In some aspects, the boom includes a first portion and a second portion, and the first portion includes a first structure and a second structure slidable relative to the first structure. The second portion includes a first member pivotably coupled to the second structure, and a second member pivotably coupled to the first member. The cutting device is supported on the second member. In some aspects, a material handling device is supported independently of the boom and movable between a retracted position and an extended position independent of the boom.Type: GrantFiled: December 18, 2020Date of Patent: July 19, 2022Assignee: JOY GLOBAL UNDERGROUND MINING LLCInventors: Nagy Daher, Richard Boyd, Edward Bagnall, Stuart Reeves
-
Patent number: 11319754Abstract: A cutting assembly is provided for a rock excavation machine having a frame. The cutting assembly includes a boom, a cutting device, and a plurality of fluid actuators. The boom includes a base portion and a movable portion. The base portion is configured to be supported by the frame, and the movable portion is supported for sliding movement relative to the base portion in a direction parallel to a longitudinal axis of the base portion. The boom includes a wrist portion pivotably coupled to the movable portion at a pivot joint. The cutting device is supported on a distal end of the wrist portion. The fluid actuators are coupled between the base portion and the wrist portion. The fluid actuators are operable to move the movable portion and the wrist portion parallel to the longitudinal axis, and are also operable to bias the wrist portion against cutting loads exerted on the cutting device.Type: GrantFiled: July 25, 2019Date of Patent: May 3, 2022Assignee: Joy Global Underground Mining LLCInventors: Nagy Daher, Stuart Reeves, Simon Fransen, Eddy Bagnall, Andrew Michael Clayton, Christian Baloch, Richard Boyd
-
Patent number: 11274497Abstract: A cutting assembly is provided for a rock excavation machine having a frame. The cutting assembly includes a boom, a cutting device, and a plurality of fluid actuators. The boom includes a base portion and a movable portion. The base portion is configured to be supported by the frame, and the movable portion is supported for sliding movement relative to the base portion in a direction parallel to a longitudinal axis of the base portion. The boom includes a wrist portion pivotably coupled to the movable portion at a pivot joint. The cutting device is supported on a distal end of the wrist portion. The fluid actuators are coupled between the base portion and the wrist portion. The fluid actuators are operable to move the movable portion and the wrist portion parallel to the longitudinal axis, and are also operable to bias the wrist portion against cutting loads exerted on the cutting device.Type: GrantFiled: July 25, 2019Date of Patent: March 15, 2022Assignee: Joy Global Underground Mining LLCInventors: Nagy Daher, Stuart Reeves, Simon Fransen, Eddy Bagnall, Andrew Michael Clayton, Christian Baloch, Richard Boyd
-
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
-
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
-
Publication number: 20210102463Abstract: A cutting assembly for a rock excavation machine including a frame. The cutting assembly includes a boom supported on the frame and a cutting device. In some aspects, the boom includes a first portion and a second portion, and the first portion includes a first structure and a second structure slidable relative to the first structure. The second portion includes a first member pivotably coupled to the second structure, and a second member pivotably coupled to the first member. The cutting device is supported on the second member. In some aspects, a material handling device is supported independently of the boom and movable between a retracted position and an extended position independent of the boom.Type: ApplicationFiled: December 18, 2020Publication date: April 8, 2021Inventors: Nagy Daher, Richard Boyd, Edward Bagnall, Stuart Reeves
-
Patent number: 10876400Abstract: A cutting assembly for a rock excavation machine including a frame. The cutting assembly includes a boom supported on the frame and a cutting device. In some aspects, the boom includes a first portion and a second portion, and the first portion includes a first structure and a second structure slidable relative to the first structure. The second portion includes a first member pivotably coupled to the second structure, and a second member pivotably coupled to the first member. The cutting device is supported on the second member. In some aspects, a material handling device is supported independently of the boom and movable between a retracted position and an extended position independent of the boom.Type: GrantFiled: August 18, 2017Date of Patent: December 29, 2020Assignee: Joy Global Underground Mining LLCInventors: Nagy Daher, Richard Boyd, Edward Bagnall, Stuart Reeves
-
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
-
Publication number: 20200347723Abstract: A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.Type: ApplicationFiled: July 17, 2020Publication date: November 5, 2020Inventors: Nagy Daher, Richard Boyd, Joaquim Antonio Soares de Sousa
-
Patent number: 10738608Abstract: A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.Type: GrantFiled: August 18, 2017Date of Patent: August 11, 2020Assignee: Joy Global Underground Mining LLCInventors: Nagy Daher, Richard Boyd, Joaquim Antonio Soares de Sousa
-
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
-
Publication number: 20200032649Abstract: A cutting assembly is provided for a rock excavation machine having a frame. The cutting assembly includes a boom, a cutting device, and a plurality of fluid actuators. The boom includes a base portion and a movable portion. The base portion is configured to be supported by the frame, and the movable portion is supported for sliding movement relative to the base portion in a direction parallel to a longitudinal axis of the base portion. The boom includes a wrist portion pivotably coupled to the movable portion at a pivot joint. The cutting device is supported on a distal end of the wrist portion. The fluid actuators are coupled between the base portion and the wrist portion. The fluid actuators are operable to move the movable portion and the wrist portion parallel to the longitudinal axis, and are also operable to bias the wrist portion against cutting loads exerted on the cutting device.Type: ApplicationFiled: July 25, 2019Publication date: January 30, 2020Inventors: Nagy Daher, Stuart Reeves, Simon Fransen, Eddy Bagnall, Andrew Michael Clayton, Christian Baloch, Richard Boyd
-
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
-
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
-
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
-
Publication number: 20180051561Abstract: A cutting assembly for a rock excavation machine having a frame includes a boom and a cutting device supported on the boom. The boom includes a first portion and a second portion, the first portion supported for pivotable movement relative to the frame. In some embodiments, the first portion includes a first structure extending along a longitudinal base axis and a second structure moveable relative to the first portion in a direction parallel to the longitudinal base axis, and at least one bearing supports the second portion for movement relative to the first portion. In some embodiments, the second portion is pivotably coupled to the first portion by a universal joint, and a suspension system including a plurality of biasing members may be coupled between the first portion and the second portion.Type: ApplicationFiled: August 18, 2017Publication date: February 22, 2018Inventors: Nagy Daher, Richard Boyd, Joaquim Antonio Soares de Sousa