Patents by Inventor Laurent Roger Spelliers

Laurent Roger Spelliers 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).

  • Passive valve assembly
    Patent number: 6883775
    Abstract: A passive valve assembly for controlling the flow into or out of chamber (3) through a port (4). The valve assembly comprises a valve element (5) arranged to open in the direction of flow through the port. The valve element (5) has a piston (9) which is reciprocable in a cylinder (10) containing gas. On opening of the valve, gas is compressed in a first chamber (11) of the cylinder (10), and this energy of compression is used to reverse the direction of the valve element (5) and return it to its seat.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: April 26, 2005
    Assignee: Innogy PLC
    Inventors: Michael Willboughby Essex Coney, Andrew Male, David Frankland West, Brian Charles Porter, Laurent Roger Spelliers
  • Passive valve assembly
    Publication number: 20030168618
    Abstract: A passive valve assembly for controlling the flow into or out of chamber (3) through a port (4). The valve assembly comprises a valve element (5) arranged to open in the direction of flow through the port. The valve element (5) has a piston (9) which is reciprocable in a cylinder (10) containing gas. On opening of the valve, gas is compressed in a first chamber (11) of the cylinder (10), and this energy of compression is used to reverse the direction of the valve element (5) and return it to its seat.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 11, 2003
    Inventors: Michael Willboughby Essex Coney, Andrew Male, David Frankland West, Brian Charles Porter, Laurent Roger Spelliers