Patents by Inventor Paul Alfons Leon Van Gelder

Paul Alfons Leon Van Gelder 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: 9452303
    Abstract: A valve device includes a housing and a closing body for closing a passage in the housing in mechanical manner, wherein the closing body is movable between an open position and a closing position; a reservoir for a flame-extinguishing substance; and an injecting means configured to inject the flame-extinguishing substance into the passage in order to prevent explosion propagation resulting from a non-fully sealed closure by the closing body.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: September 27, 2016
    Assignee: Sturvek International NV
    Inventors: Paul Alfons Leon Van Gelder, Peter Jozef Regina Maria Macken
  • Publication number: 20150238787
    Abstract: A valve device includes a housing and a closing body for closing a passage in the housing in mechanical manner, wherein the closing body is movable between an open position and a closing position; a reservoir for a flame-extinguishing substance; and an injecting means configured to inject the flame-extinguishing substance into the passage in order to prevent explosion propagation resulting from a non-fully sealed closure by the closing body.
    Type: Application
    Filed: August 26, 2013
    Publication date: August 27, 2015
    Inventors: Paul Alfons Leon Van Gelder, Peter Jozef Regina Maria Macken