Patents by Inventor Lisbeth Pedersen Sylvester

Lisbeth Pedersen Sylvester 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).

  • EcoBeta
    Patent number: 7415736
    Abstract: A flush regulator for retrofit use in a toilet tank for regulating the outflow therefrom through an outlet, said regulator including a flap valve without buoyancy, said flap valve adapted to close said outlet, a rod connected at one end to said flap valve and a body of buoyancy at another end of said rod above said flap valve, said flap valve adapted to close said outlet when the water level in said tank reaches the upper edge of said body of buoyancy and said buoyancy and flap valve fall to close said outlet.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: August 26, 2008
    Inventors: Lisbeth Pedersen Sylvester, Nils Karstensen
  • EcoBeta
    Publication number: 20050005347
    Abstract: A flush regulator for retrofit use in a toilet tank for regulating the outflow therefrom through an outlet, said regulator including a flap valve without buoyancy, said flap valve adapted to close said outlet, a rod connected at one end to said flap valve and a body of buoyancy at another end of said rod above said flap valve, said flap valve adapted to close said outlet when the water level in said tank reaches the upper edge of said body of buoyancy and said buoyancy and flap valve fall to close said outlet.
    Type: Application
    Filed: July 9, 2004
    Publication date: January 13, 2005
    Inventors: Lisbeth Pedersen Sylvester, Nils Karstensen