Patents by Inventor Alf G. Hay

Alf G. Hay 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).

  • Subsea switchgear apparatus
    Patent number: 7952855
    Abstract: A subsea switchgear apparatus including a frame, at least one electrical power inlet mounted to the frame, at least one electrical power outlet mounted to the frame, a distribution chamber mounted to the frame, and at least one canister mounted to the frame. The at least one canister includes a chamber accommodating at least one high voltage circuit breaker. Electrical connections are arranged in the distribution chamber for electrically connecting a respective circuit breaker of a canister to an associated power inlet and power outlet of the switchgear apparatus. The chamber of the respective canister is separated from the distribution chamber by a pressure barrier.
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: May 31, 2011
    Assignee: Vetco Gray Scandinavia AS
    Inventors: Rune Sletten, Tor-Odd Rønhovd, Alf G. Hay