Patents by Inventor Debkumar Rakshit

Debkumar Rakshit 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).

  • Patent number: 11873888
    Abstract: A differential carrier and ring gear assembly for a vehicle is provided. The assembly comprises a differential carrier, a ring gear, and a weld nugget. The differential carrier comprises an outer surface including a first contact face having a weld end extending to a root end. The first contact face has a first slot formed on a first radial portion thereof. The ring gear is disposed about the differential carrier and comprises an inner side having an inner surface. The inner side has a stop flange abutting the root end. The inner surface comprises a second contact face disposed on the first contact face such that the root end is in abutment with the second end. The first and second hollow channels define a pocket therebetween and the first slot defines a first vent hole for venting. The weld nugget is disposed between the first and second contact faces.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: January 16, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Huaxin Li, Debkumar Rakshit, Cheonjae Bahk, Pankaj Kumar Jha, William John Wilson
  • Patent number: 10487932
    Abstract: A differential housing includes a body including an outer surface. The body has a first end, a second end, and an intermediate portion extending therebetween. A ring gear support member extends outwardly of the body at the second end. A ring gear support surface forms a first section of the intermediate portion. The ring gear support surface defines a first outer diameter of the intermediate portion. A ring gear is mounted to the outer surface of the body. The ring gear includes an inner annular surface having a first region defining a first inner diameter and a second region defining a second inner diameter. The first region includes a sawtooth profile to establish a desired alignment of the ring gear and the body and the second region facilitating an interference fit with the ring gear support surface.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 26, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William J. Wilson, Debkumar Rakshit, Steven G. Trombat, Jevon Kennell, Dan E. Revers
  • Patent number: 10036462
    Abstract: A differential barrel includes a body having a first end, a second end, and an intermediate portion extending therebetween. A ring gear support member extends outwardly at the second end. A ring gear support surface forms a first section of the intermediate portion. The ring gear support surface defines a first outer diameter of the intermediate portion. A ring gear alignment surface forms a second section of the intermediate portion. The ring gear alignment surface defines a second outer diameter of the intermediate portion. A ring gear is mounted to the outer surface of the body and includes an inner annular surface including a first region defining a first inner diameter and a second region defining a second inner diameter. The first region establishes an interference fit with the ring gear support surface. The second inner diameter is no more than about 0.05-inches (1.27-mm) greater than the second outer diameter.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 31, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William J. Wilson, Steven G. Trombat, Jevon Kennell, Debkumar Rakshit
  • Publication number: 20180149254
    Abstract: A differential housing includes a body including an outer surface. The body has a first end, a second end, and an intermediate portion extending therebetween. A ring gear support member extends outwardly of the body at the second end. A ring gear support surface forms a first section of the intermediate portion. The ring gear support surface defines a first outer diameter of the intermediate portion. A ring gear is mounted to the outer surface of the body. The ring gear includes an inner annular surface having a first region defining a first inner diameter and a second region defining a second inner diameter. The first region includes a sawtooth profile to establish a desired alignment of the ring gear and the body and the second region facilitating an interference fit with the ring gear support surface.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 31, 2018
    Inventors: William J. Wilson, Debkumar Rakshit, Steven G. Trombat, Jevon Kennell, Dan E. Revers
  • Publication number: 20180149253
    Abstract: A differential barrel includes a body having a first end, a second end, and an intermediate portion extending therebetween. A ring gear support member extends outwardly at the second end. A ring gear support surface forms a first section of the intermediate portion. The ring gear support surface defines a first outer diameter of the intermediate portion. A ring gear alignment surface forms a second section of the intermediate portion. The ring gear alignment surface defines a second outer diameter of the intermediate portion. A ring gear is mounted to the outer surface of the body and includes an inner annular surface including a first region defining a first inner diameter and a second region defining a second inner diameter. The first region establishes an interference fit with the ring gear support surface. The second inner diameter is no more than about 0.05-inches (1.27-mm) greater than the second outer diameter.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 31, 2018
    Inventors: William J. Wilson, Steven G. Trombat, Jevon Kennell, Debkumar Rakshit