Patents by Inventor Surekha mahesh Nagvekar

Surekha mahesh Nagvekar 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: 6848292
    Abstract: The present invention relates to system for calibrating plurality of pressure transducers, said system comprising plurality of pressure transducers (13.1 to 13.n) mounted on a mounting means (12) which receives pressure input from a pressure source (11) via a hollow pipe (14) and distributes the pressure evenly to all the pressure transducers, said plurality of pressure transducers are mounted on the mounting means and placed inside a vessel (15) as to vary the temperature of the pressure transducers, said pressure source is also connected to a standard pressure transducer (17) whose temperature is maintained at the same level as that of pressure transducers (13.1 to 13.n).
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: February 1, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Antony Joseph, Vijay Kumar, Shivanand Prabhudesai, Prakash Mehra, Ehrlich Desa, Surekha mahesh Nagvekar
  • Publication number: 20030177812
    Abstract: The present invention relates to a system for calibrating plurality of pressure transducers, said system comprising plurality of pressure transducers (13.1 to 13.n) mounted on a mounting means (12) which receives pressure input from a pressure source (11) via a hollow cylinder (14) and distributes the pressure evenly to all the pressure transducers, said plurality of pressure transducers are mounted on the mounting means and placed inside a vessel (15) so as to vary the temperature of the pressure transducers, said pressure source is also connected to a standard pressure transducer (17) whose temperature is maintained at the same level as that of pressure transducers(13.1 to 13.n).
    Type: Application
    Filed: March 22, 2002
    Publication date: September 25, 2003
    Inventors: Antony Joseph, Vijay Kumar, Shivanand Prabhudesai, Prakash Mehra, Ehrlich Desa, Surekha mahesh Nagvekar
  • Patent number: 6568266
    Abstract: The present invention relates to a pressure housing for in-water pressure based systems and to a method for improving the life of the transducers and electronics of underwater systems by maintaining a humidity-free and clean environment around them by avoiding the entry of humidity, dust, or any suspended particles in the air during occasional data offloading and battery replacement in a humid and dust-laden field station; improving the ease of closing and opening of the pressure housing by the use of a novel arrangement thereby avoiding the use of conventionally employed cumbersome protruding and corrosion-prone locking devices such as screws, bolts, or clamps; and implementing reliable transmission of water pressure to the pressure port of the transducer, simultaneously minimizing the errors arising from dynamic pressure effects, preventing its chemical corrosion from saline water, and arresting bio-fouling in the vicinity of the pressure inlet.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: May 27, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ehrlich Desa, Gajanan Purushottam Naik, Antony Joseph, Elgar Stephen Desa, Prakash Mehra, Vijay Kumar, Shivanand Prabhu Desai, Surekha Mahesh Nagvekar