Patents by Inventor DAVID GAMBUZZI

DAVID GAMBUZZI 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: 20240151216
    Abstract: The present disclosure relates to a piston assembly, the piston assembly comprising a cylinder extending along an axis and having an open axial end, a cap assembly closing the cylinder at its open axial end, wherein the cap assembly comprises an insertion portion received in the cylinder at its open axial end, and a piston axially movably disposed within the cylinder and partially received in the insertion portion of the cap assembly. The present disclosure further relates to a variable displacement hydraulic unit including said piston assembly.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 9, 2024
    Inventors: Luca FONTANESI, Alessandro SASSI, David GAMBUZZI
  • Publication number: 20240151225
    Abstract: The present disclosure relates to a zeroing device comprising a piston movable along an axis, at least one biasing member for biasing the piston along the axis, and an axially displaceable zeroing member limiting axial movement of the at least one biasing member. The present disclosure further relates to a variable displacement hydraulic unit including said zeroing device.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 9, 2024
    Inventors: Luca FONTANESI, Alessandro SASSI, David GAMBUZZI
  • Publication number: 20240011471
    Abstract: The present disclosure relates to a coupling assembly for a variable displacement hydraulic unit. The coupling assembly may have a rotatable swashplate, a swashplate bearing including a cage and a plurality of rollers mounted on the cage, a pin fixed to the swashplate, and a coupling member rotatably supported on the pin.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 11, 2024
    Applicant: Dana Motion Systems Italia S.R.L.
    Inventors: Luca FONTANESI, Alessandro SASSI, David GAMBUZZI
  • Publication number: 20230258176
    Abstract: A system is disclosed including an electric motor having a rotor shaft, a hydraulic pump including a gear; and an end bell housing enclosing an end of the electric motor, the end housing having a plurality of cooling fins, the end housing further supporting the gear coupled to the rotor shaft, the gear pressurizing hydraulic fluid.
    Type: Application
    Filed: February 14, 2022
    Publication date: August 17, 2023
    Inventors: David GAMBUZZI, Luca BUSCICCHIO
  • Patent number: 11248593
    Abstract: A swash plate bearing is disclosed. The swash plate bearing may have an arcuate cage member having at least one flange and a plurality of rolling elements rotatably coupled to the at least one flange. A coupling seat extends laterally from the at least one flange, the coupling seat may have an insertion hole. A link member may be rotatably coupled to the cage member, the link member having a central portion positioned between a first terminal portion and a second terminal portion. A first stem connects the central portion to the first terminal portion and a second stem connects the central portion to the second terminal portion. The central portion is positioned in the insertion hole.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: February 15, 2022
    Assignee: Dana Motion Systems Italia S.r.l.
    Inventors: David Gambuzzi, Simone Annovi, Paolo Comodi, Luca Fontanesi
  • Publication number: 20210268898
    Abstract: A hydrostatic drive system for vehicles may have a hydrostatic transmission unit with a hydraulic motor provided with a containment body and a drive shaft rotationally supported around a primary axis inside of the containment body. The system may also have an axle with a housing case for a differential device for the transmission of the drive torque to two half-axles and rotating around a secondary axis transverse to the primary axis. The differential device may also have a toothed conical drive ring gear in rotation about the secondary axis. The coupling member may be a conical pinion rigidly associated in rotation about the primary axis with the drive shaft and directly geared with the ring gear, the pinion being positioned along the terminal section of the drive shaft.
    Type: Application
    Filed: July 17, 2019
    Publication date: September 2, 2021
    Applicant: DANA MOTION SYSTEMS ITALIA S.R.L.
    Inventors: DAVID GAMBUZZI, NICOLA FRANCESCO MUSCIAGNA, FABIO NATALI, NICOLA TESSARO
  • Publication number: 20210010464
    Abstract: A swash plate bearing is disclosed. The swash plate bearing may have an arcuate cage member having at least one flange and a plurality of rolling elements rotatably coupled to the at least one flange. A coupling seat extends laterally from the at least one flange, the coupling seat may have an insertion hole. A link member may be rotatably coupled to the cage member, the link member having a central portion positioned between a first terminal portion and a second terminal portion. A first stem connects the central portion to the first terminal portion and a second stem connects the central portion to the second terminal portion. The central portion is positioned in the insertion hole.
    Type: Application
    Filed: February 12, 2019
    Publication date: January 14, 2021
    Applicant: DANA MOTION SYSTEMS ITALIA S.R.L.
    Inventors: DAVID GAMBUZZI, SIMONE ANNOVI, PAOLO COMODI, LUCA FONTANESI