Patents Assigned to Caterpillar Global Mining LLC
  • Patent number: 12139879
    Abstract: A dipper for a work machine is disclosed. The dipper may have a front cavity wall forming an inlet which defines a vertical inlet plane, a rear cavity wall opposite the front cavity wall forming an outlet which defines an outlet plane, a top cavity wall extending between front and rear cavity walls defining a horizontal top plane, a bottom cavity wall opposite the top cavity wall defining a bottom plane, and two side cavity walls. The two side cavity walls may further extend between the front and rear cavity wall. The outlet plane may be angled relative to the inlet plane, the bottom plane may be angled relative to the top plane, and the outlet plane is perpendicular to the bottom plane.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: November 12, 2024
    Assignee: Caterpillar Global Mining LLC
    Inventors: James G. Jamilosa, Andrew Seungyul Yun, Jae Beom Park, Mustafa I. Alsaleh, Matthew James Lossmann
  • Publication number: 20240369078
    Abstract: A flow limiter for a cut-off valve of a hydraulic pumping system and a hydraulic system using such a flow limiter. The flow limiter provides for limiting a flow through a cut-off valve. The flow limiter for a cut-off valve of a hydraulic pumping system includes a valve body with a hollow channel. The hollow channel has a fluid inlet and a fluid outlet, and the fluid inlet is in fluid communication with a discharge line of the cut-off valve in a mounted state of the flow limiter. A valve element is slidably arranged within the channel and can transition from a first position towards a second position, if a predefined fluid pressure threshold is exceeded at the fluid inlet. The valve element is arranged in the hollow channel so that in the second position a fluid flow from the fluid inlet to the fluid outlet is larger than in the first position.
    Type: Application
    Filed: May 2, 2023
    Publication date: November 7, 2024
    Applicant: Caterpillar Global Mining LLC
    Inventor: Pengfei Ma
  • Patent number: 12077228
    Abstract: A transition track slider has a hollow body including a first side surface, a second side surface, a bottom surface at least partially interposed between the first side surface and the second side surface, and that also defines a cavity. A front surface with a bullet nose configuration connects the first side surface to the second side surface, and to the bottom surface, while a rear surface connects the first side surface to the second side surface, and to the bottom surface. A top surface extends from the rear surface toward the front surface.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: September 3, 2024
    Assignee: Caterpillar Global Mining LLC
    Inventors: Cristian Zaharia, Elizabeth J. Barnes, Michael W. Haws, Mircea Dumitru, Aruna Kinjarapu
  • Patent number: 12032350
    Abstract: Industrial machines at a mine site or other worksite are monitored and controlled using a multi-phase implementation, based on data received from multiple data sources at different times. Machine telemetry data or other sensor data received from a first machine, in combination with additional sensor data from other machines at the site, detailed material attribute data received from external data sources, and/or outputs from trained machine-learned models, are used to determine characteristics of a material load and/or material blend, and to control machines at the mine site. A control system performs a multi-phase implementation for monitoring machines and/or load data in response to data received at different times, updating the material load and blend characteristics, and controlling machines at the site based on the characteristics of the material load or material blend.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: July 9, 2024
    Assignee: Caterpillar Global Mining LLC
    Inventor: Russell A. Brockhurst
  • Patent number: 12023769
    Abstract: A drilling detection system may include a drilling detection circuitry including one or more detection processors configured to receive a vibration signal indicative of vibration associated with a drilling machine configured to drill holes into a substrate and receive a movement signal indicative of movement of the drilling machine relative to one or more positions on the substrate. The one or more detection processors may also be configured to determine vibration associated with the drilling machine, and determine movement associated with the drilling machine. The one or more detection processors may also be configured to determine, based at least in part on the vibration associated with the drilling machine and the movement associated with the drilling machine, the drilling machine has drilled holes into the substrate and a position on the substrate at which the drilling machine has drilled the holes into the substrate.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: July 2, 2024
    Assignee: Caterpillar Global Mining LLC.
    Inventors: Thomas Frank Doherty, Ben Lincoln Clare, Darryl Victor Collins
  • Publication number: 20240200720
    Abstract: The present disclosure is directed towards a fluid distribution assembly. The fluid distribution assembly comprises a distribution device comprising at least one device inlet for receiving fluid and at least one device outlet for directing fluid out of the distribution device. The fluid distribution assembly comprises at least one distribution plate adjacent to the distribution device comprising at least one distribution arrangement for controlling the communication of fluid to and/or from the at least one device inlet and/or outlet.
    Type: Application
    Filed: August 17, 2020
    Publication date: June 20, 2024
    Applicant: Caterpillar Global Mining LLC
    Inventors: Igor STRASHNY, Candace BAUER
  • Publication number: 20240183451
    Abstract: A shut off valve for a hydraulic system is provided. The shut off valve comprises a wall of a hydraulic reservoir, a hydraulic fluid outlet, a valve seat, a valve plate, a valve arm, and a valve control shaft. The hydraulic reservoir is for holding hydraulic fluid. The hydraulic fluid outlet is formed through the wall. The valve seat is provided on an inner surface of the wall encircling the hydraulic fluid outlet. The valve seat has an engagement surface. The valve plate is shaped to engage with the engagement surface of the valve seat. The valve arm is connected between the valve plate and the valve control shaft. The valve control shaft is formed through the wall spaced apart from the hydraulic fluid outlet. The valve plate is configured to rotate about the valve control shaft between a first position in which the valve plate does not cover the valve seat, and a second position in which the valve plate covers the valve seat to shut off the hydraulic fluid outlet.
    Type: Application
    Filed: April 20, 2022
    Publication date: June 6, 2024
    Applicant: Caterpillar Global Mining LLC
    Inventor: Igor STRASHNY
  • Publication number: 20240068198
    Abstract: A hitch assembly for a bucket of a work machine includes a bracket adapted to be removably coupled with the bucket at any one of a plurality of hitch locations. The bracket defines a first bracket end and a second bracket end. The bracket is adapted to be coupled with a drag chain proximal to the first bracket end. The hitch assembly also includes one or more first mechanical fasteners adapted to removably couple the bracket with the bucket. The hitch assembly further includes a second mechanical fastener adapted to be coupled with each of the bucket and the bracket proximal to the second bracket end. Based on a removal of the one or more first mechanical fasteners from the bucket and the bracket, the bracket and the second mechanical fastener rotate relative to the bucket for disposing the bracket at any one of the plurality of hitch locations.
    Type: Application
    Filed: August 25, 2022
    Publication date: February 29, 2024
    Applicant: Caterpillar Global Mining LLC
    Inventor: Michael Robert Stolz
  • Patent number: 11866905
    Abstract: A work machine includes a frame, a traction system supporting the frame, an arm assembly having a first end and a second end, the first end connected to the frame, an implement connected to the second end, and a linkage connecting the implement to the second end of the arm assembly. The linkage includes a pin-supporting section configured to accept a pin and a linking section attached to the pin-supporting section by a weld. The linking section includes a recess proximate to the weld.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: January 9, 2024
    Assignee: Caterpillar Global Mining LLC
    Inventors: Daniel T. Unger, Ramanagarajan Meenakshinathan, Kort C. Randall
  • Patent number: 11866904
    Abstract: A digging machine such as a face shovel is controlled in an automated dumping sequence in which the bucket is pivoted to a first angular orientation before opening and, optionally, re-orienting to a second, slightly more forwardly inclined angular orientation. The first orientation may relieve the front part of the bucket from the load while the second orientation is selected to discharge the load at an optimal trajectory. The bucket may move to a third angular orientation before closing the front part against gravity.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: January 9, 2024
    Assignee: Caterpillar Global Mining LLC
    Inventor: Marcus Bitter
  • Publication number: 20230399816
    Abstract: The present invention pertains to a method for estimating a payload of a hydraulic mining shovel comprising an attachment having a bucket and at least one hydraulic cylinder. The method comprising the steps of determining a current position of the bucket, measuring a cylinder pressure and an angular attachment acceleration, estimating a dynamic cylinder pressure based on the angular attachment acceleration, calculating an estimated static cylinder pressure and retrieving a payload estimation. The present invention also pertains to a hydraulic mining shovel comprising a system being configured to carry out such method.
    Type: Application
    Filed: October 19, 2021
    Publication date: December 14, 2023
    Applicant: Caterpillar Global Mining LLC
    Inventors: Sharath CUGATI, Martin KUNIGK, Arthur CESARZ
  • Patent number: 11773563
    Abstract: A dipper handle includes a dipper tube, a dipper engagement member, and an intermediate member between the dipper tube and the dipper engagement member. The dipper tube has a substantially cylindrical outer surface and a contoured inner surface. The contoured inner surface results in multiple wall thicknesses for the dipper tube, including a first thickness proximate a first end and a second, larger thickness, proximate a second end. The second end is configured for coupling to the intermediate member.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: October 3, 2023
    Assignee: Caterpillar Global Mining LLC
    Inventors: Adam J. Thomas, Michael W. Haws, Aruna Kinjarapu, Cristian Zaharia, Vladimir A. Korchagin
  • Publication number: 20230295895
    Abstract: A pivoting connection between a bucket and a padlock of a rope shovel, a pin assembly, and a rope shovel are disclosed. A pivoting connection includes a pin having a pin axis and extending through a bucket lug of the bucket and a pair of padlock lugs of the padlock; a flag having a pin end and a mounting end; a locking coupling coaxial with the pin axis and located in the pin end of the flag, wherein the locking coupling selectively couples the flag to the pin; and a slotted flag mount attached to the bucket including a vertical slot and a horizontal slot parallel to the pin axis; wherein the mounting end of the flag is received by the slotted flag mount such that the pin is constrained from rotating with respect to the bucket and from translating along the pin axis.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 21, 2023
    Applicant: Caterpillar Global Mining LLC
    Inventor: James G. JAMILOSA
  • Publication number: 20230295904
    Abstract: A liner assembly for protecting a sidewall of a work implement associated with a work machine is disclosed. The liner assembly includes a wedge, a wedge-plate interface, a liner plate, and a weld. The wedge comprising a receiving channel configured to support the liner plate and a slot for filling the weld to secure the wedge to the sidewall. The liner plate includes an engaging channel complementary to the receiving channel to form the wedge-plate interface which supports the liner plates on the wedge. The weld is further provided along the perimeter and gaps of the liner plates to secure the liner plate to the sidewall of the work implement.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 21, 2023
    Applicant: Caterpillar Global Mining LLC
    Inventor: James G. JAMILOSA
  • Patent number: 11753791
    Abstract: A dipper handle assembly includes a tube coupled to a yoke. The yoke has a collar extending along a collar axis, a transition portion, a first arm and a second arm. The transition portion includes a distal end having first and second lateral sections and first and second transverse sections. The first and second lateral sections and the first and second transverse sections all lie in a virtual transition portion distal end plane, and the virtual transition portion distal end plane intersects the collar axis at an oblique angle.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: September 12, 2023
    Assignee: Caterpillar Global Mining LLC
    Inventors: Cristian Zaharia, Michael W. Haws, Aruna Kinjarapu, Vladimir A. Korchagin, James G. Jamilosa
  • Patent number: 11732435
    Abstract: A latching system associated with a dipper door of a dipper includes a latch bar that engages with a body of the dipper. The latch bar defines a longitudinal axis. The latch bar includes a housing, one or more shims, and a wear member removably coupled to the housing. The wear member defines a wear surface and a wear axis extending parallel to the wear surface. An angle defined between the wear axis and the longitudinal axis is less than 45 degrees. The latching system also includes an arm member pivotally coupled to the dipper door such that the arm member is pivotable along a first pivot plane. The arm member contacts a portion of the latch bar for moving the latch bar along the longitudinal axis. The latching system includes a guide assembly having a guide pulley and an actuation member that causes pivoting of the arm member.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 22, 2023
    Assignee: Caterpillar Global Mining LLC
    Inventor: James G. Jamilosa
  • Publication number: 20230193584
    Abstract: A yoke of a dipper handle comprises a collar and a crowd pin aperture extending along a crowd pin aperture axis. First and second arms of the yoke include dipper pin lug apertures aligned along a dipper pin aperture axis parallel to the crowd pin aperture axis. The first and second arms of the yoke further include first and second pitch brace lug apertures aligned along a pitch brace aperture axis parallel to the crowd pin aperture axis. A first virtual reference line extends between the crowd pin aperture axis and the dipper pin aperture axis, while a second virtual reference line extends between the crowd pin aperture axis and the pitch brace aperture axis. An included angle ? between the first virtual reference line and the second virtual reference line is between approximately 25 to approximately 51 degrees.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 22, 2023
    Applicant: Caterpillar Global Mining LLC
    Inventors: Cristian ZAHARIA, Michael W. HAWS, Aruna KINJARAPU, Vladimir A. KORCHAGIN, James G. JAMILOSA
  • Publication number: 20230193583
    Abstract: A dipper handle assembly includes a tube coupled to a yoke. The yoke has a collar extending along a collar axis, a transition portion, a first arm and a second arm. The transition portion includes a distal end having first and second lateral sections and first and second transverse sections. The first and second lateral sections and the first and second transverse sections all lie in a virtual transition portion distal end plane, and the virtual transition portion distal end plane intersects the collar axis at an oblique angle.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 22, 2023
    Applicant: Caterpillar Global Mining LLC
    Inventors: Cristian ZAHARIA, Michael W. HAWS, Aruna KINJARAPU, Vladimir A. KORCHAGIN, James G. JAMILOSA
  • Publication number: 20230053466
    Abstract: A cam frame assembly for a walking system includes a plurality of frame components. The frame components include an upper frame, a lower frame, a front guide frame, and a rear guide frame. At least one of the frame components includes a replaceable wear surface. The replaceable wear surface is an insert retained within a notch in the frame component.
    Type: Application
    Filed: August 23, 2021
    Publication date: February 23, 2023
    Applicant: Caterpillar Global Mining LLC
    Inventor: David S. Austin
  • Publication number: 20230056316
    Abstract: A dipper handle includes a dipper tube, a dipper engagement member, and an intermediate member between the dipper tube and the dipper engagement member. The dipper tube has a substantially cylindrical outer surface and a contoured inner surface. The contoured inner surface results in multiple wall thicknesses for the dipper tube, including a first thickness proximate a first end and a second, larger thickness, proximate a second end. The second end is configured for coupling to the intermediate member.
    Type: Application
    Filed: August 19, 2021
    Publication date: February 23, 2023
    Applicant: Caterpillar Global Mining LLC
    Inventors: Adam J. Thomas, Michael W. Haws, Aruna Kinjarapu, Cristian Zaharia, Vladimir A. Korchagin