Patents by Inventor James E. Main

James E. Main 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).

  • Extractor of a bushing conductor from a bushing insulator for a dead tank circuit breaker
    Patent number: 9978539
    Abstract: An extractor for at least partially extracting a bushing central conductor from a bushing insulator. The extractor comprises a supporting member, a movable member and lifting means. The supporting member is configured to be rigidly secured to the bushing insulator. The movable member is configured to be rigidly secured to the bushing central conductor. The lifting means are configured to move the movable member along the supporting member.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: May 22, 2018
    Assignee: General Electric Technology GmbH
    Inventor: James E. Main