Patents by Inventor Cristian Zaharia

Cristian Zaharia 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).

  • Publication number: 20250243647
    Abstract: A liner assembly for a work implement is adapted to be coupled to a body of the work implement. The liner assembly includes a plurality of liners coupled to the body of the work implement. Each of the plurality of liners includes a base plate. The base plate defines a first surface adapted to contact material present in the work implement. The base plate also defines a second surface adapted to contact the body of the work implement. The base plate further defines a plurality of grooves extending between the first surface and the second surface. Each of the plurality of grooves defines a first maximum length between two ends thereof. Each of the plurality of grooves is adapted to receive welding material to couple a corresponding liner with the body of the work implement.
    Type: Application
    Filed: January 30, 2024
    Publication date: July 31, 2025
    Applicant: Caterpillar Global Mining LLC
    Inventors: Cristian Zaharia, James Jamilosa, Michael Wayne Haws
  • Publication number: 20250207347
    Abstract: In an electric rope shovel, the dipper handle must support significant weight, which presents the potential of fatigue cracking at interfaces between sections of the dipper handle. Accordingly, embodiments of a dipper handle are disclosed that reduce stress at the interface between the tube section and the intermediate section, to which the crowd control is coupled. In particular, spacing is provided between the interface and the crowd bores, to separate the interface from the stiffness of the coupling. In addition, the walls of the dipper handle may be thickened, proximate the interface, with beveled edges at the interface, to provide a stronger, more durable, weld.
    Type: Application
    Filed: December 20, 2023
    Publication date: June 26, 2025
    Applicant: Caterpillar Global Mining Equipment LLC
    Inventors: Cristian ZAHARIA, Michael W HAWS, Vladimir Anatolevich KORCHAGIN
  • Patent number: 12187365
    Abstract: A track slider mounting plate kit includes a first shark fin configured mounting plate including a first bottom mounting surface, a first beveled surface extending from the first bottom mounting surface, and a second beveled surface that extends from the first beveled surface, forming a first oblique angle with the second beveled surface. A track slider is attached to the first shark fin configured mounting plate that has a top surface extending from the rear surface toward the front surface defining a top surface radius of curvature ranging from 2200 mm to 2600 mm.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: January 7, 2025
    Assignee: Caterpillar Global Mining LLC
    Inventors: Cristian Zaharia, Elizabeth J. Barnes, Michael W. Haws, Mircea Dumitru, Aruna Kinjarapu
  • 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: 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
  • 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
  • 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: 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
  • Publication number: 20220348274
    Abstract: A track slider mounting plate kit includes a first shark fin configured mounting plate including a first bottom mounting surface, a first beveled surface extending from the first bottom mounting surface, and a second beveled surface that extends from the first beveled surface, forming a first oblique angle with the second beveled surface. A track slider is attached to the first shark fin configured mounting plate that has a top surface extending from the rear surface toward the front surface defining a top surface radius of curvature ranging from 2200 mm to 2600 mm.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 3, 2022
    Applicant: Caterpillar Global Mining Equipment LLC
    Inventors: Cristian Zaharia, Elizabeth J. Barnes, Michael W. Haws, Mircea Dumitru, Aruna Kinjarapu
  • Publication number: 20220348273
    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: Application
    Filed: April 29, 2021
    Publication date: November 3, 2022
    Applicant: Caterpillar Global Mining Equipment LLC
    Inventors: Cristian Zaharia, Elizabeth J. Barnes, Michael W. Haws, Mircea Dumitru, Aruna Kinjarapu