Patents by Inventor Srihari Vijayakumar

Srihari Vijayakumar 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).

  • Occupant-propelled fluid powered rotary device, truck, wheeled platform, or vehicle
    Patent number: 7216876
    Abstract: A device for generating rotational energy for hydraulic fluids, which includes at least one hydraulic cylinder, the at least one hydraulic cylinder comprising at least two chambers, wherein each of the at least two chambers are in fluid communication with the other. The hydraulic fluid is displaced from the hydraulic cylinder to an accumulator and a valve, which controls the release of the hydraulic fluid to a hydraulic motor. The hydraulic motor receives the hydraulic fluid from the accumulator and valve creating torque to drive a wheel or other device.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: May 15, 2007
    Inventors: Jeffrey E. Cole, Nicolas Orand, Srihari Vijayakumar
  • Occupant-propelled fluid powered rotary device, truck, wheeled platform, or vehicle
    Publication number: 20050280233
    Abstract: A device for generating rotational energy for hydraulic fluids, which includes at least one hydraulic cylinder, the at least one hydraulic cylinder comprising at least two chambers, wherein each of the at least two chambers are in fluid communication with the other. The hydraulic fluid is displaced from the hydraulic cylinder to an accumulator and a valve, which controls the release of the hydraulic fluid to a hydraulic motor. The hydraulic motor receives the hydraulic fluid from the accumulator and valve creating torque to drive a wheel or other device.
    Type: Application
    Filed: January 5, 2005
    Publication date: December 22, 2005
    Inventors: Jeffrey Cole, Nicolas Orand, Srihari Vijayakumar