Patents by Inventor Thorstein NMI Holt

Thorstein NMI Holt 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).

  • HIGH NITROGEN AND OTHER INERT GAS ANTI-CORROSION PROTECTION IN WET PIPE FIRE PROTECTION SYSTEM
    Publication number: 20130098640
    Abstract: A wet pipe fire protection sprinkler system and method of operating a wet pipe fire sprinkler system includes providing a sprinkler system having a pipe network, a source of water for the pipe network, at least one sprinkler head connected with the pipe network and a drain valve for draining the pipe network. An inert gas source, such as a nitrogen gas source, is connected with the pipe network. Inert gas is supplied from the inert gas source to the pipe network. Water is supplied to the pipe network thereby substantially filling the pipe network with water and compressing the inert gas in the pipe network.
    Type: Application
    Filed: June 10, 2011
    Publication date: April 25, 2013
    Applicant: Holtec Gas Systems
    Inventors: David J. Burkhart, Jeffrey T. Kochelek, Kenneth NMI Jones, Thorstein NMI Holt