Patents by Inventor Subir Chakraborty

Subir Chakraborty 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).

  • Vacuum interrupter with double live shield
    Patent number: 11756756
    Abstract: A vacuum interrupter including a cylindrical insulator, a first end cap sealed to one end of the insulator and a second end cap sealed to an opposite end of the insulator to provide a vacuum chamber. The vacuum interrupter further includes a fixed contact stem extending through the first end cap and having a contact positioned within the chamber, and a movable contact stem extending through the second end cap and having a contact portion positioned within the chamber. A first vapor shield is formed around the fixed contact stem so as to define a gap between the fixed contact and the insulator and a second vapor shield is formed around the movable contact so as to define a gap between the movable contact and the insulator.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: September 12, 2023
    Assignee: S&C Electric Company
    Inventors: Leslie T. Falkingham, Keith W. Benson, Jason R. Bogusz, Gregory Wilk, Kam Wa Cheng, Subir Chakraborty, Gabrielle Madden, Francis Gotanco
  • VACUUM INTERRUPTER WITH DOUBLE LIVE SHIELD
    Publication number: 20220270837
    Abstract: A vacuum interrupter including a cylindrical insulator, a first end cap sealed to one end of the insulator and a second end cap sealed to an opposite end of the insulator to provide a vacuum chamber. The vacuum interrupter further includes a fixed contact stem extending through the first end cap and having a contact positioned within the chamber, and a movable contact stem extending through the second end cap and having a contact portion positioned within the chamber. A first vapor shield is formed around the fixed contact stem so as to define a gap between the fixed contact and the insulator and a second vapor shield is formed around the movable contact so as to define a gap between the movable contact and the insulator.
    Type: Application
    Filed: February 22, 2022
    Publication date: August 25, 2022
    Applicant: S&C Electric Company
    Inventors: Leslie T. Falkingham, Keith W. Benson, Jason R. Bogusz, Gregory Wilk, Kam Wa Cheng, Subir Chakraborty, Gabrielle Madden, Francis Gotanco