Patents by Inventor Premkumar Ramanathan

Premkumar Ramanathan 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).

  • Safety-cap system for an engine cooling device and a method
    Patent number: 7114470
    Abstract: The present invention provides a safety cap system with a pressure and temperature activated external locking cum unlocking means for an automotive cooling system to prevent accidental removal of the safety cap. The safety cap further uses a torque overriding mechanism to ensure an effective closure and removal torque.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: October 3, 2006
    Assignee: Sundram Fasteners Limited
    Inventors: Premkumar Ramanathan, Giri Prasad Rajagopal, Kumaresan Narayanaswamy
  • Safety-cap system for an engine cooling device and a method
    Publication number: 20050211709
    Abstract: The present invention provides a safety cap system with a pressure and temperature activated external locking cum unlocking means for an automotive cooling system to prevent accidental removal of the safety cap. The safety cap further uses a torque overriding mechanism to ensure an effective closure and removal torque.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 29, 2005
    Applicant: Sundram Fasteners Limited
    Inventors: Premkumar Ramanathan, Giri Rajagopal, Kumaresan Narayanaswamy