Patents Assigned to Caterpillar Global Mining LLC
  • DROP LINE TENSIONING ASSEMBLY
    Publication number: 20160060843
    Abstract: A tensioning assembly including a primary rod and a hydraulic jack. The primary rod being positioned adjacent to a center section of the hydraulic jack. The tensioning assembly further including a frame housing anchored to the hydraulic jack. The tensioning assembly also includes a link rod connected to the primary rod and a primary adjusting and a secondary adjusting nut associated with the link rod to adjust the tension of a cable or line.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 3, 2016
    Applicant: Caterpillar Global Mining LLC
    Inventor: Jason J. Trotnow
  • HYDRAULIC SYSTEM FOR MACHINE
    Publication number: 20160025097
    Abstract: A hydraulic system for a machine is disclosed. The hydraulic system includes a hydraulic tank configured to store a liquid therein. The hydraulic system also includes a first conduit, a venturi, a fluid conduit and a second conduit. The first conduit is in fluid communication with the hydraulic tank and configured to receive the liquid from the hydraulic tank. The venturi is in fluid communication with the first conduit and configured to reduce a pressure of the liquid flowing therethrough. The fluid conduit is in fluid communication with the venturi and configured to supply a gaseous fluid into the venturi. The second conduit is in fluid communication with the venturi and configured to supply a mixture of the liquid and the gaseous fluid into the hydraulic tank in order to increase a pressure of the liquid in the hydraulic tank.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 28, 2016
    Applicant: Caterpillar Global Mining LLC
    Inventor: John K. Luvaas
  • SNUBBER FOR MACHINE
    Publication number: 20160024747
    Abstract: A snubber for a machine includes a housing mounted on an implement, a shaft, a first member that has multiple helical splines that is coupled to the shaft. The shaft is rotatably received within the housing and operatively coupled to a movable component of the implement. The snubber also includes a cylinder defining a cavity, a piston received in the cylinder and dividing the cavity into a first chamber and a second chamber, a second member that has multiple helical splines and is coupled to the piston and, a hydraulic device. The helical splines of the first and second member engage with each other to convert a rotation of the shaft into a linear movement of the piston. The hydraulic device is in fluid communication with the cavity and controls a flow of fluid between the first chamber and the second chamber to oppose rotation of the shaft.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 28, 2016
    Applicant: Caterpillar Global Mining LLC
    Inventors: Kim G. Lunderskov, Daniel E. Bozich
  • HYDRAULIC ACTUATOR
    Publication number: 20160024756
    Abstract: A hydraulic actuator is disclosed. The hydraulic actuator may have a cylinder barrel. The hydraulic actuator may also have a piston rod reciprocally received by the cylinder barrel. The piston rod may have at least one first piston rod end extending out of the cylinder barrel. The hydraulic actuator may further have an intermediate element attached to the at least one first piston rod end by a first set of screws extending in a first direction. In addition, the hydraulic actuator may have a connecting element attached to the intermediate element by a second set of screws extending in a second direction opposite to the first direction.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 28, 2016
    Applicant: Caterpillar Global Mining LLC
    Inventor: Martin KUNIGK
  • SNUBBER FOR MACHINE
    Publication number: 20160024746
    Abstract: A snubber for a machine is provided. The snubber includes a frame that is mounted on an implement of the machine, a shaft that is operatively coupled to a movable component of the implement and a housing that is coupled to the shaft and rotatably received within the frame. The housing defines a cavity that is configured to store a fluid therein in a sealed manner. The snubber also includes at least one brake disc disposed within the housing and configured to rotate with the shaft and at least one brake pad disposed within the housing and configured to frictionally engage with the at least one brake disc to oppose rotational movement of the housing relative to the frame. The fluid is configured to at least partly remove heat generated due to the frictional engagement between the at least one brake disc and the at least one brake pad.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 28, 2016
    Applicant: Caterpillar Global Mining LLC
    Inventors: Kim G. Lunderskov, Daniel E. Bozich
  • SNUBBER FOR MACHINE
    Publication number: 20160024745
    Abstract: A snubber for a machine includes a housing, a shaft and a pinion that is coupled to the shaft. The housing is mounted on an implement of the machine. The shaft is rotatably received within the housing and operatively coupled to a movable component of the implement. The snubber also includes a cylinder defining a cavity, a piston slidably received within the cylinder, a rack coupled to the piston, and a hydraulic device. The cylinder is at least partly disposed within the housing. The piston divides the cavity of the cylinder into a first chamber and a second chamber. The rack engages with the pinion to convert a rotation of the shaft into a linear movement of the piston. The hydraulic device is in fluid communication with the cavity and controls a flow of fluid between the first chamber and the second chamber to oppose rotation of the shaft.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 28, 2016
    Applicant: Caterpillar Global Mining LLC
    Inventors: Kim G. Lunderskov, Daniel E. Bozich
  • Multi-capacity cylinder
    Patent number: 9234587
    Abstract: A multi-capacity hydraulic cylinder includes a hollow cylinder closed by a cylinder head, an annular piston moveable within the hollow cylinder to divide the interior of hollow cylinder into a first chamber and a second chamber, a hollow piston rod coupled to the piston and aligned with an opening in the piston, and a secondary rod moveable within the hollow piston rod to define a third chamber in the hollow piston rod, where the third chamber has a cross-sectional area that is less than the cross-sectional area of the first chamber.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: January 12, 2016
    Assignee: Caterpillar Global Mining LLC
    Inventor: Stuart Cover
  • SYSTEM FOR REMOVING PIN OF A TRACK ASSEMBLY
    Publication number: 20150375815
    Abstract: A system for removing a pin connecting adjacent tracks of a track assembly is disclosed. The system includes: a bracket member, a holder member, a guiding member, a stop member, a pusher member, a plurality of inserts, a top member, a spring member and a cylinder assembly. The cylinder assembly can be adapted to sequentially push one insert of the plurality of inserts disposed on the stop member through the actuation opening to move the pin with respect to the adjacent tracks.
    Type: Application
    Filed: September 14, 2015
    Publication date: December 31, 2015
    Applicant: Caterpillar Global Mining LLC
    Inventors: Sivakumar Ramaiyan, Brett E. Burke, Sivanesaselvam Thangarajan
  • APPARATUS FOR ALIGNING TRACK SEGMENTS OF TRACK ASSEMBLY
    Publication number: 20150375816
    Abstract: An apparatus for aligning a track of a track assembly with respect to another track a link is provided. The track assembly includes a link that further includes a pad portion defining a top surface and a bottom surface. The apparatus includes a first tube, a pair of upper connecting members, a second tube, a pair of hitch members, and a pair of lower connecting members. A projecting portion of each of the pair of upper connecting members and an extending portion of each of the pair of lower connecting members are adapted to removably retain the first tube on the pad portion of the track.
    Type: Application
    Filed: September 14, 2015
    Publication date: December 31, 2015
    Applicant: Caterpillar Global Mining LLC
    Inventors: SIVAKUMAR RAMAIYAN, BRETT E. BURKE, GNANASEKAR JEEVANANTHAM
  • ADAPTER FOR MOUNTING LARGER DIAMETER RIMS
    Publication number: 20150352895
    Abstract: A dual wheel adapter assembly for mounting dual wheel rims to a wheel hub is provided. The dual wheel adapter assembly may include a hollow cylindrical adapter, including a central bore defined by an inner surface of the adapter, a first contact surface, and a second contact surface. The dual wheel adapter assembly may also include an inboard wheel rim configured to support a tire, an outboard wheel rim configured to support a tire, and a wedge clamp configured to be coupled to the hub. The first contact surface may abut the hub and the wedge clamp may apply a compressive force to the second contact surface to couple the adapter to the hub.
    Type: Application
    Filed: December 4, 2012
    Publication date: December 10, 2015
    Applicant: Caterpillar Global Mining LLC
    Inventors: Steven J. FUJAN, Matthew J. ORVEDAHL, Frederick W. LOEBER
  • Void protection system
    Patent number: 9206583
    Abstract: A void protection system for a mining shovel having an operator input device includes an independent metering valve assembly including one or more fluid source-cylinder valves for fluidly connecting the fluid source to the hydraulic cylinder. The system also includes a sensor assembly for monitoring the fluid pressure within the rod end and the head end of the hydraulic cylinder, and a control module. The control module is configured to monitor movement of the operator input device, monitor pressure within the hydraulic cylinder, increase the opening of the corresponding fluid source-cylinder valve and increase fluid flow from the fluid source to fill corresponding end of the hydraulic cylinder until pressure in the corresponding end of the hydraulic cylinder is above a first threshold pressure.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: December 8, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventors: Matthew J. Beschorner, Bryan A. Johnson, Brett J. Janson, Brandon Z. Barnes, Rustu Cesur
  • Light grid system for rope machinery
    Patent number: 9194100
    Abstract: A light grid system for rope machinery is provided. The light grid system includes one or more light grid assemblies, including one or more sensor frames configured to be coupled to one or more post assemblies and configured to mount adjacent to one or more rope drums. The light grid assemblies also include one or more sensors coupled to the sensor frames, at least a first sensor configured to emit one or more light beams, at least a second sensor configured to receive the light beams. The light beams are positionable a predetermined distance away from the ropes, and the light grid assemblies are configured to transmit a signal to a control module when the light beams are obstructed.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: November 24, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventors: Russell A. Fix, James Onsager
  • Systems and methods for stabilizing power rate of change within generator based applications
    Patent number: 9190852
    Abstract: Systems and methods for monitoring an electrical energy storage unit and a parameter related to the load and based on the monitoring, if the load parameter is greater than a second rate of change of electrical power for a second component of an electrical power system, providing power from the electrical energy storage unit to the second component until the load parameter and the second component have equivalent rates of change of electrical power.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: November 17, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventors: David T. Bienfang, Robert A. Hamann, Michael G. Onsager, Michael E. Brandt, Marcelo C. Algrain
  • Hydraulic door snubber
    Patent number: 9180558
    Abstract: A dipper assembly for a mining shovel, includes a dipper having a dipper back and an open dipper bottom, and a dipper door pivotally mounted to the dipper, configured to pivot between an open position and a closed position with a swing speed, and to cover the open dipper bottom. The dipper assembly also includes one or more hydraulic door snubbers. The hydraulic door snubbers include a base having one or more connecting plates, one or more mounting plates coupled to the base and configured to receive a link extending from the dipper door, one or more friction plates, and a hydraulic cylinder configured to clamp the mounting plates, the connecting plates, the friction plates and the link together.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 10, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventors: David T. Bienfang, Patrick B. Maguire
  • POWER SHOVEL HOIST MACHINERY WITH AUXILIARY WEIGHT BOX
    Publication number: 20150308266
    Abstract: A power shovel including a tool for lifting, a machine house, a hoist drum, hoist drum machinery and an auxiliary weight box having a perimeter, the hoist drum and hoist drum machinery being at least partially disposed within the perimeter of the auxiliary weight box and the hoist drum being disposed outside of the machine house.
    Type: Application
    Filed: July 3, 2015
    Publication date: October 29, 2015
    Applicant: Caterpillar Global Mining LLC.
    Inventors: Frank R. Szpek, JR., Carl D. Gilmore, David T. Bienfang
  • Control systems for a mining vehicle
    Patent number: 9169615
    Abstract: A mining shovel includes a dipper assembly comprising a dipper arm coupled to a dipper, a boom assembly configured to support the dipper assembly, and an overcrowd prevention system including one or more sensors configured to monitor an axial force. The mining shovel also includes a swing abuse prevention system, including one or more sensors configured to monitor one or more compound loading forces, and one or more sensors configured to monitor a torsion loading force. The mining shovel also includes a control module configured to receive signals from the sensors, and to control at least the crowding force applied to the dipper.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: October 27, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventors: James Ryan, Van I. Phifer
  • MINING ROOF SUPPORT SYSTEM
    Publication number: 20150300169
    Abstract: A support system for a mining roof includes a base, a cylinder coupled to the base and configured to extend and retract, a pivot mechanism coupled to the cylinder, a roof support beam coupled to the pivot mechanism and configured to contact a surface of the mining roof, wherein the roof support beam and the pivot mechanism are raised relative to the base when the cylinder is extended and lowered relative to the base when the cylinder is retracted, and a support structure coupled to the base on a first end and coupled to the pivot mechanism on a second end, the support structure being configured to limit movement of the roof support beam about an axis provided by the cylinder.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 22, 2015
    Applicant: Caterpillar Global Mining LLC
    Inventor: Robert Needham
  • Park brake logic
    Patent number: 9150208
    Abstract: A braking system may include a first brake, a parking brake, a warning system, and a control system. A parking brake system may allow an operator to selectively engage the parking brake. The control system may include a first brake detector that indicates when the first brake is engaged, a parking brake detector that indicates when the parking brake is engaged, and a door state detector that indicates when a door open. The control system may selectively activate a portion of the parking brake system when the first brake is engaged, activate the warning system when the door is open and the parking brake is engaged, and activate the warning system when the door is open, the parking brake is engaged, and the first brake is engaged. A speed sensor may be used to prevent the parking brake from engaging above a predetermined speed.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 6, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventor: Justen J. Schemmel
  • Media pressure cavitation protection system for rock drills
    Patent number: 9151117
    Abstract: A drilling apparatus has a chassis and a feed beam. The feed beam includes a rock drill hammer, a moveable drill string, a rock drill system coupled to the feed beam, a media pressure system coupled to the rock drill system, and a sensor system. The media pressure system includes a high pressure supply path, a low pressure return path, a control valve coupled to the high pressure supply path, at least one accumulator, and a sensor system. The sensor system includes a pressure transducer coupled to the high pressure supply path, the low pressure return path, or the accumulator to supply pressure data, a control unit configured to monitor and compare the pressure data to an acceptable pressure range stored in memory, and a warning apparatus configured to alert the operator of a pressure outside of the predetermined acceptable pressure range.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 6, 2015
    Assignee: Caterpillar Global Mining LLC
    Inventor: Stuart A. Connell
  • CONVEX MIRROR FOR LARGE VEHICLES
    Publication number: 20150274077
    Abstract: A rear view mirror for a vehicle is disclosed. The rear view mirror includes a continuous reflective surface of varying convexity. The continuous reflective surface is defined by a horizontal quadratic equation and a vertical quadratic equation. Using the two quadratic equations to define the curvature of the continuous reflective surface provides for a relatively flat portion in the middle of the minor that is surrounded by portions of higher convexities. The relatively flat portion assists the operator in depth perception while the surrounding portions of higher convexities further assists the operator in terms of reflecting expanded views and therefore better coverage of blind spots.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 1, 2015
    Applicant: Caterpillar Global Mining LLC
    Inventors: Ritesh Kamalaksh Gaonkar, Eugene Yefim Grinberg