Patents by Inventor Geoffrey Blackbourn

Geoffrey Blackbourn 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).

  • Tap with incorporated air passageway
    Patent number: 6470910
    Abstract: A tap comprising a body having a liquid flow passageway between a liquid inlet and a liquid outlet and an air flow passageway between an air inlet and an air outlet. A valve system including a valve seat is provided for controlling liquid and air flow in the passageways which is operated by a push button. When the air inlet and liquid outlet are coincident, the valve seat may be at or adjacent the liquid outlet. When the air outlet and liquid inlet are coincident, the valve seat may be at the liquid inlet.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: October 29, 2002
    Assignee: Waddington and Duval Limited
    Inventors: Geoffrey Blackbourn, Ian Woodward
  • Tap with incorporated air passageway
    Publication number: 20020079001
    Abstract: A tap comprising a body having a liquid flow passageway between a liquid inlet and a liquid outlet and an air flow passageway between an air inlet and an air outlet. A valve system including a valve seat is provided for controlling liquid and air flow in the passageways which is operated by a push button. When the air inlet and liquid outlet are coincident, the valve seat may be at or adjacent the liquid outlet. When the air outlet and liquid inlet are coincident, the valve seat may be at the liquid inlet.
    Type: Application
    Filed: February 27, 2002
    Publication date: June 27, 2002
    Applicant: Waddington and Duval Limited
    Inventors: Geoffrey Blackbourn, Ian Woodward
  • Tap with incorporated air passageway
    Patent number: 6401752
    Abstract: A tap (2, 52) comprising a body having a liquid flow passageway between a liquid inlet (10, 60) and a liquid outlet (12, 62) and an air flow passageway between an air inlet (13, 62) and an air outlet (10, 92). A valve system including a valve seat (24, 63) is provided for controlling liquid and air flow in the passageways which is operated by a push button (16, 66). When the air inlet (62) and liquid outlet (62) are coincident, the valve seat (63) may be at or adjacent the liquid outlet (62). When the air outlet (10) and liquid inlet (10) are coincident, the valve seat (24) may be at the liquid inlet (10).
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: June 11, 2002
    Assignee: Waddington & Duval Limited
    Inventors: Geoffrey Blackbourn, Ian Woodward