Patents by Inventor Jagdish Gattu

Jagdish Gattu 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).

  • CONSTRUCTING VALVE POSITIONERS FOR HAZARDOUS AREAS
    Publication number: 20200240441
    Abstract: A controller for a valve assembly that is configured to meet requirements for use in hazardous areas. These configurations may regulate flow of instrument air to a pneumatic actuator to operate a valve. The controller may comprise enclosures, including a first enclosure and a second enclosure, each having a peripheral wall forming an interior space, and circuitry comprising a barrier circuit disposed in the interior space of one of the enclosures that power limits digital signals that exits that enclosure. In one example, the peripheral wall of enclosures are configured to allow instrument air into the interior space of the first enclosure but to prevent instrument air from the interior space of the second enclosure.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Inventors: Jonathan Fredric Cohen, Jagdish Gattu, Lei Lu, Anatoly Podpaly, Harold Randall Smart, Paul Talmage Tirrell
  • Constructing valve positioners for hazardous areas
    Patent number: 10670054
    Abstract: A controller for a valve assembly that is configured to meet requirements for use in hazardous areas. These configurations may regulate flow of instrument air to a pneumatic actuator to operate a valve. The controller may comprise enclosures, including a first enclosure and a second enclosure, each having a peripheral wall forming an interior space, and circuitry comprising a barrier circuit disposed in the interior space of one of the enclosures that power limits digital signals that exits that enclosure. In one example, the peripheral wall of enclosures are configured to allow instrument air into the interior space of the first enclosure but to prevent instrument air from the interior space of the second enclosure.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 2, 2020
    Assignee: Dresser, LLC
    Inventors: Jonathan Fredric Cohen, Jagdish Gattu, Lei Lu, Anatoly Podpaly, Harold Randall Smart, Paul Talmage Tirrell
  • CONSTRUCTING VALVE POSITIONERS FOR HAZARDOUS AREAS
    Publication number: 20190120263
    Abstract: A controller for a valve assembly that is configured to meet requirements for use in hazardous areas. These configurations may regulate flow of instrument air to a pneumatic actuator to operate a valve. The controller may comprise enclosures, including a first enclosure and a second enclosure, each having a peripheral wall forming an interior space, and circuitry comprising a barrier circuit disposed in the interior space of one of the enclosures that power limits digital signals that exits that enclosure. In one example, the peripheral wall of enclosures are configured to allow instrument air into the interior space of the first enclosure but to prevent instrument air from the interior space of the second enclosure.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 25, 2019
    Inventors: Jonathan Fredric Cohen, Jagdish Gattu, Lei Lu, Anatoly Podpaly, Harold Randall Smart, Paul Talmage Tirrell