Patents Assigned to Caterpillar Inc
  • Patent number: 10184226
    Abstract: A blade for use with a grading machine comprises an attachment portion, a working portion including a plurality of teeth, each tooth defining a bore, and a plurality of wear resistant inserts retained in the bores of the teeth.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: David Bruno Parzynski, Jr., Thomas Marshall Congdon
  • Patent number: 10183377
    Abstract: A method of standardizing a grinder burn etch test may include machining a test sample of substantially equivalent chemical composition and heat treatment to a manufactured part to be audited for grinder burn and receiving data on an expected range of thermal damage that may be caused on the manufactured part during grinding by grinder burn. The method may also include preparing the test sample by laser heat treating at least a portion of the test sample to create a range of thermal damage across predetermined areas on the test sample, wherein the range of thermal damage on the test sample encompasses the expected range of thermal damage that may be caused on the manufactured part during grinding by grinder burn. The method may still further include testing a grinder burn etch bath with the test sample to determine whether the etch bath can detect thermal damage across at least a threshold percentage of the expected range of thermal damage that may be caused on the manufactured part.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Jonathan Robert Crow, Trenton G. Jacobson
  • Patent number: 10184388
    Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion, the crown portion forming a generally concave bowl extending symmetrically around the piston body with respect to an axis of symmetry of the crown portion. The bowl forms a first lip and a second lip that are arranged in a stepped configuration along a side margin of the bowl. A depressed ledge having a generally annular shape is further formed in the crown portion, the depressed ledge including a flat, annular surface extending along a plane that is parallel to a plane defined by the generally flat crown surface.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventor: Chad Ahmad
  • Patent number: 10184387
    Abstract: A prechamber ignition assembly for an internal combustion engine includes a base attached to a remanufactured prechamber ignition device at a base weld interface. The remanufactured prechamber ignition device includes a new tip formed of a tip material, and a root formed of a root material, with a used body formed of a body material disposed therebetween. The new tip is bonded to the used body at a tip weld interface and the root is bonded to the used body at a root weld interface.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Curtis Graham, Kegan Luick, Daniel Cavanaugh, Darryl Hatfield
  • Patent number: 10184295
    Abstract: A machine comprising a frame including a front-right portion, a front-left portion, a rear-right portion, and a rear-left portion. The machine includes a first jack coupled with the front-right portion for raising or lowering the front-right portion, a second jack coupled with the front-left portion for raising or lowering the front-left portion, a third jack coupled with the rear-right portion for raising or lowering the rear-right portion, and a fourth jack coupled with the rear-left portion for raising or lowering the rear-left portion. The machine includes a front jack leveling system operatively coupled with the first jack and the second jack. The front jack leveling system controls the first jack and the second jack such that a first movement of the first jack in a first direction corresponds to a second movement of the second jack in a second direction that is opposite from the first direction.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventor: John P. Marek
  • Patent number: 10187288
    Abstract: A device and a method for communicating data link information associated with a machine is provided. The device includes a light source comprising a Light Emitting Diode (LED). The device includes a controller configured to transmit a query, to the machine, for different types of information related to the machine, the different types of information including a first type of information, a second type of information, and a third type of information. Upon receiving a response indicating the availability of one or more types of information among the different types of information, the controller is configured to provide a first indication, a second indication, a third indication, a fourth indication, or a fifth indication. The controller is further configured to transmit data regarding the one or more types of information that are available.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: John David Parker, Joseph Kuriakose George, Rick C Nystrom
  • Patent number: 10183673
    Abstract: One or more powertrains can include a motor-generator disposed therein that is electrically coupled to an energy storage device through an inverter gate. A regulation strategy can monitor operation of the powertrain to regulate the inverter gate to selectively discharge energy from the energy storage device to the motor-generator to assist the powertrain or to charge energy from the motor-generator to the energy storage device for future use. In an aspect, the regulation strategy may maintain a consistent speed of an internal combustion engine associated with the powertrain. In another aspect, the regulation strategy may regulate simultaneous operation of first and second powertrains disposed a parallel relation.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Peter J. Miller, Omar Abdel-Baqi
  • Patent number: 10184462
    Abstract: A cryogenic pump for pumping cryogenic fluid is provided. The pump includes a pump assembly adapted for exposure to cryogenic fluid that includes a plurality of pumping elements disposed about a pump axis. A drive assembly drives the pumping elements to pump cryogenic fluid. A plurality of actuating elements are arranged circumferentially about the pump axis, each actuating element operatively interconnecting the drive assembly with a respective one of the pumping elements. Each actuating element includes a first portion disposed a first radial distance from the pump axis and a second portion disposed a second radial distance from the pump axis with the first radial distance being less than the second radial distance at ambient temperature.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventor: Alan R. Stockner
  • Patent number: 10186093
    Abstract: A machine includes a frame, a suspension system mounted to the frame and including a strut, and a hauling condition monitoring system supported by the frame. The hauling condition monitoring system includes a pressure sensor arranged with the strut, a geolocation unit, a computer-readable medium bearing a hauling condition monitoring program, a controller, and an interface device. The controller is in operable communication with the pressure sensor and the geolocation unit to receive their signals and configured to execute the hauling condition monitoring program. The interface device is in operable communication with the controller and configured to display the hauling condition monitoring program's graphical user interface. The hauling condition monitoring program is configured to monitor the strut pressure signal for a hazard event that occurs when a dynamic change in the strut pressure exceeds a threshold amount and track the location of the machine when the hazard event occurred.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventor: Nathan S. Pauli
  • Patent number: 10183706
    Abstract: A node for interconnecting frame members of a frame, the node including a single piece node body. A plurality of cup-shaped node connectors are disposed on the node body. Each of the plurality of node connectors include a closed end attached to the node body and an open end opposite the closed end and extending away from the node body. A sidewall extends between and connects the closed end to the open end. A tenon is formed on the open end. The tenon is shaped and sized to fit within a frame member. A transition is formed between the sidewall and the tenon defining a peripheral, radially outwardly facing groove in cooperation with the frame member, the groove shaped and sized to receive a weld.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Tad Miller, Arun L. Gain, Stan Eads
  • Patent number: 10184436
    Abstract: A fluid injection system includes a fluid injector assembly; a fluid conditioning module having an outlet port that is fluidly coupled to an inlet port of the fluid injector assembly; an injector assembly outlet conduit fluidly coupled to an outlet port of the fluid injector assembly and disposed downstream of the fluid injector assembly, the injector assembly outlet conduit defining a pressure measurement port and a flow-restricting orifice, the pressure measurement port being disposed upstream of the flow-restricting orifice along the direction of fluid flow through the fluid injector assembly; a pressure sensor fluidly coupled to the pressure measurement port; and a controller operatively coupled to the fluid conditioning module and the pressure sensor. The controller is configured to adjust a flowrate of a fluid through the injector assembly inlet conduit based on a pressure signal from the pressure sensor.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Scott F. Shafer, Martin Lehman, Lifeng Wang, David E. Hackett, Taylor Tang, Andrew Marrack, Dennis H. Gibson
  • Patent number: 10183671
    Abstract: A system for managing a lockup clutch in an off-road truck includes an engine, a transmission and a torque converter coupled between the engine and the transmission. The torque converter has a lockup clutch that when engaged directly couples the engine to the transmission. The system also includes a transmission controller that disengages the lockup clutch responsive to sensing a missed shift in the transmission, and subsequent to sensing a completed shift, sets an engine speed limit corresponding to a gear associated with the completed shift, and reengages the lockup clutch.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Adam L. Steffes, Raymond E. Durbin, Arthur Melvin Morris, Mark E. Hull, Matthew A. Johnson, Jeffrey Hynes
  • Patent number: 10186004
    Abstract: A system for evaluating a target profile for moving material with a work implement along a path includes a position sensor and a controller. The controller is configured to utilize a planning system to determine the target profile, receive position signals from the position sensor, and determine from the position signals an actual profile indicative of the work surface after the work implement is moved along the path to move a volume of material. The controller is further configured to compare the target profile to the actual profile, determine at least two performance factor scores based upon a difference between the target profile and the actual profile, and generate a quantitative evaluation of the target profile based upon the at least two performance factor scores.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Mo Wei, Michael Taylor, Thandava K. Edara
  • Patent number: 10185034
    Abstract: A method for determining a position of a machine in a worksite is disclosed. The method may include determining, using a Lidar unit on the machine, input data. The input data may be associated with distances between the Lidar unit and respective light-reflective points in the worksite. The method may also include transmitting a radio-frequency communication between a first signal device at a known location within the worksite and a second signal device located on the machine. Further, the method may include determining position data for the machine based on at least the radio frequency communication. The method may also include determining a position of the machine based on the position data and the input data.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: David William Smith, Peter John Broughton
  • Publication number: 20190017747
    Abstract: A cooling assembly for a service vehicle is provided. The cooling assembly includes a frame arranged to define an internal cavity, with the frame having six faces: —a bottom face, a top face, and four side faces. The first face is configured to be mounted on the service vehicle. Three of the four side faces are each configured to have at least one cooler mounted thereon. A remaining one of the four side faces is positioned proximate to and facing an engine of the service vehicle and has a barrier element provided thereon to restrict drawing air therethrough.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 17, 2019
    Applicant: Caterpillar Inc.
    Inventors: Umakanth Sakaray, Dhanasekar Murugan, Timothy Englert
  • Publication number: 20190017141
    Abstract: A method of heat treating a fastening member having a head portion, a shank portion, and a thread portion includes hardening the fastening member to a first hardness value. Hardening of the fastening member includes heating the fastening member at a first pre-set temperature value. The method also includes tempering the fastening member at a second pre-set temperature value to a second hardness value. The method further includes induction tempering the thread portion of the fastening member. Induction tempering of the thread portion includes heating the thread portion at a third pre-set temperature value to a third hardness value. The third hardness value of the thread portion is less than the second hardness value of the head portion and the shank portion.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 17, 2019
    Applicant: Caterpillar Inc.
    Inventor: Tianjun Liu
  • Publication number: 20190017900
    Abstract: A system for commissioning a machine such as an internal combustion engine includes commissioning probes, and a user interface having a computer receiving test data from the commissioning probes. The computer is structured to store a commissioning profile for the machine on a memory, and to populate the commissioning profile based on a compensation factor that depends on a difference between a performance response of ancillary equipment connected with the machine and an expected response. The computer outputs a commissioning suitability signal based on comparing the commissioning profile to a target profile.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 17, 2019
    Applicant: Caterpillar Inc.
    Inventors: Perry Converse, Michael Coppinger, Yanchai Zhang
  • Publication number: 20190017250
    Abstract: A shim for use with a wear member comprises a body that defines a first aperture that includes a closed end and an open end, wherein the first aperture is defined by at least three surfaces including two side surfaces and at least one surface that defines the closed end and that further defines a surface normal that points toward the open end, and a second aperture that includes a closed end and an open end, wherein the second aperture is defined by at least three surfaces including two side surfaces and at least one surface that defines the closed end and that further defines a surface normal that points toward the open end. The surface normal of the first aperture forms an angle with the surface normal of the second aperture that is greater than zero degrees.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Applicant: Caterpillar Inc.
    Inventors: Nathan Bjerke, Thomas Marshall Congdon
  • Publication number: 20190017312
    Abstract: A system and method for monitoring a cabin of machine is provided. The system includes an operator presence sensor, a cabin pressure sensor, a door sensor, and a carbon dioxide sensor configured to generate the first output signal, the second output signal, the third output signal and the fourth output signal respectively. The system includes a controller configured to selectively process at least one of the first output signal, the second output signal, the third output signal or the fourth output signal. The controller is further configured to control one or more conditions inside the cabin based on the selective processing of the at least one of the first output signal, the second output signal, the third output signal or the fourth output signal.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 17, 2019
    Applicant: Caterpillar Inc.
    Inventors: Douglas John Hovel, Daren Robert Carr, Erick Alan Njos, Daniel Alan Spurgeon, Micheal David Valerio
  • Patent number: 10179424
    Abstract: A diagnostic system for measuring acceleration of a piston of a reciprocating hammer is disclosed. The diagnostic system may include a magnet configured to induce, via electromagnetic induction and based on a movement of the piston, an electric current in a conductor. The diagnostic system may include a capacitor electrically coupled to the conductor and configured to store electric power based on the electric current induced by the magnet. The diagnostic system may include an accelerometer configured to measure an acceleration of the piston. The diagnostic system may include a communication device powered by the capacitor and configured to output a signal that identifies the acceleration measured by the accelerometer.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 15, 2019
    Assignee: Caterpillar Inc.
    Inventors: Steven B. Ellis, Dimitar Dostinov, Bart A. Fisher