Patents by Inventor Subhas SARKAR

Subhas SARKAR 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: 9978500
    Abstract: A yoke clamp bracket for a transformer core. The yoke clamp bracket may comprise a body portion having a plurality of center holes near each end, a plurality of slots for coil barriers, a plurality of slots for wiring, and attachment points for side brackets and vertical supports. The yoke clamp bracket may be mounted to a transformer core by connectors extending through the plurality of center holes. The yoke clamp bracket may be constructed from a lightweight material with low density such that it displaces a larger quantity of tank oil and reduces the weight of a distribution transformer.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: May 22, 2018
    Assignee: Virginia Transformer Corporation
    Inventor: Subhas Sarkar
  • Publication number: 20180019048
    Abstract: A yoke clamp bracket for a transformer core. The yoke clamp bracket may comprise a body portion having a plurality of center holes near each end, a plurality of slots for coil barriers, a plurality of slots for wiring, and attachment points for side brackets and vertical supports. The yoke clamp bracket may be mounted to a transformer core by connectors extending through the plurality of center holes. The yoke clamp bracket may be constructed from a lightweight material with low density such that it displaces a larger quantity of tank oil and reduces the weight of a distribution transformer.
    Type: Application
    Filed: July 18, 2016
    Publication date: January 18, 2018
    Applicant: Virginia Transformer Corporation
    Inventor: Subhas SARKAR
  • Publication number: 20170117088
    Abstract: A transformer coil wound in a disc winding arrangement. Discs may be arranged such that the line lead does not connect to the first disc in the transformer coil but instead to a subsequent disc. This arrangement may improve the capacitance between the initial few discs of the winding, making the impulse voltage distribution more uniform without the use of a static end ring or other impulse voltage distribution controlling alterations.
    Type: Application
    Filed: October 26, 2015
    Publication date: April 27, 2017
    Applicant: VIRGINIA TRANSFORMER CORPORATION
    Inventor: Subhas SARKAR
  • Publication number: 20170018354
    Abstract: A tension bar for applying pressure more uniformly by the core bracket of a transformer may be provided. The tension bar may include a bow-shaped flat bar having at least one tightening bolt disposed therein. The at least one tightening bolt may be adjusted to apply pressure on a channel bracket clamping the yoke of a transformer. The tension bar may allow for tension to be applied uniformly along the length of the channel bracket used to clamp the yoke.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 19, 2017
    Applicant: VIRGINIA TRANSFORMER CORPORATION
    Inventor: Subhas SARKAR