Patents by Inventor Nathaniel J. Diroff

Nathaniel J. Diroff 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).

  • Cooling and lubrication system for a motor vehicle drive unit
    Patent number: 11242019
    Abstract: A cooling and lubrication system for a motor vehicle drive unit includes a drive unit sump, a first mechanically-driven pump, a second mechanically-driven pump, and an oil/air separator reservoir, among other possible components. The drive unit sump holds drive unit fluid. The first mechanically-driven pump fluidly communicates with the drive unit sump, and the second mechanically-driven pump fluidly communicates with the drive unit sump. The oil/air separator reservoir resides downstream of the first mechanically-driven pump and resides downstream of the second mechanically-driven pump.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Robert Parrish, Nathaniel J. Diroff, Vijay A. Neelakantan
  • Cooling and Lubrication System for a Motor Vehicle Drive Unit
    Publication number: 20200114848
    Abstract: A cooling and lubrication system for a motor vehicle drive unit includes a drive unit sump, a first mechanically-driven pump, a second mechanically-driven pump, and an oil/air separator reservoir, among other possible components. The drive unit sump holds drive unit fluid. The first mechanically-driven pump fluidly communicates with the drive unit sump, and the second mechanically-driven pump fluidly communicates with the drive unit sump. The oil/air separator reservoir resides downstream of the first mechanically-driven pump and resides downstream of the second mechanically-driven pump.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 16, 2020
    Inventors: Robert Parrish, Nathaniel J. Diroff, Vijay A. Neelakantan