Patents by Inventor Roopak Sharma

Roopak Sharma 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).

  • HYDRAULIC ACTUATOR
    Publication number: 20220213906
    Abstract: A hydraulic actuator includes a body defining a bore having a first end surface, a second end surface, and a bore surface, and a piston slidable in the bore. The piston, bore surface and first end surface define a first chamber, and the piston, bore surface and second end surface define a second chamber. The body also defines an accumulator chamber and a fluid passage between the first chamber and the accumulator chamber. An accumulator is received in the accumulator chamber and a valve selectably opens and closes the fluid passage.
    Type: Application
    Filed: November 9, 2021
    Publication date: July 7, 2022
    Applicant: J.C. BAMFORD EXCAVATORS LIMITED
    Inventors: Ravinder Padam, Roopak Sharma, Sanjeev Arora
  • Method and system for controlling an engine stall
    Patent number: 10704473
    Abstract: An hydraulic system for a working machine, the system comprising an engine, and an engine speed sensor configured to detect the engine speed; a travel pump configured to actuate a travel actuator, and a travel pump pressure sensor configured to detect the travel pump pressure; a service pump configured to actuate a service actuator, and a service pump pressure sensor configured to detect the service pump pressure; and a micro-controller unit configured to receive input values from each sensor, and configured to determine whether each input value is within a predetermined range where the engine will not stall. The micro-controller unit is configured to provide an output when at least one input value is outside the predetermined range.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: July 7, 2020
    Assignee: JCB India Limited
    Inventors: Mahadeo Prabhakar Gopale, Roopak Sharma, Sanjeev Arora
  • METHOD AND SYSTEM FOR CONTROLLING AN ENGINE STALL
    Publication number: 20170314477
    Abstract: An hydraulic system for a working machine, the system comprising an engine, and an engine speed sensor configured to detect the engine speed; a travel pump configured to actuate a travel actuator, and a travel pump pressure sensor configured to detect the travel pump pressure; a service pump configured to actuate a service actuator, and a service pump pressure sensor configured to detect the service pump pressure; and a micro-controller unit configured to receive input values from each sensor, and configured to determine whether each input value is within a predetermined range where the engine will not stall. The micro-controller unit is configured to provide an output when at least one input value is outside the predetermined range.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 2, 2017
    Applicant: JCB India Limited
    Inventors: Mahadeo Prabhakar Gopale, Roopak Sharma, Sanjeev Arora