Patents by Inventor Paul Mark Paterson

Paul Mark Paterson 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).

  • Impeller drive for a water jet propulsion unit
    Patent number: 7824237
    Abstract: A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The impellers are configured so that one of the impellers will impart less energy to the water as it passes the blades of the impeller than the second impeller.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: November 2, 2010
    Assignee: Propeller Jet Limited
    Inventors: Paul Mark Paterson, Barry John Davies
  • Jet pumping device
    Patent number: 7566251
    Abstract: A propulsion or pumping device which includes two counter-rotating shafts (3, 4) each carrying at least one impeller (7, 8), wherein each impeller (7, 8) can deflect by a predetermined amount in directions substantially perpendicular t to the longitudinal axis of the shaft (3, 4) on which the impeller (7, 8) is mounted.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: July 28, 2009
    Assignee: Propeller Jet Limited
    Inventors: Paul Mark Paterson, Barry John Davies
  • IMPELLER DRIVE FOR A WATER JET PROPULSION UNIT
    Publication number: 20090022576
    Abstract: A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The impellers are configured so that one of the impellers will impart less energy to the water as it passes the blades of the impeller than the second impeller.
    Type: Application
    Filed: October 1, 2008
    Publication date: January 22, 2009
    Applicant: PROPELLER JET LIMITED
    Inventors: Paul Mark PATERSON, Barry John Davies
  • Impeller drive for a water jet propulsion unit
    Patent number: 7448926
    Abstract: A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The impellers are configured so that one of the impellers will impart less energy to the water as it passes the blades of the impeller than the second impeller.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: November 11, 2008
    Assignee: Propeller Jet Limited
    Inventors: Paul Mark Paterson, Barry John Davies
  • Jet Pumping Device
    Publication number: 20080200082
    Abstract: A propulsion or pumping device which includes two counter-rotating shafts (3, 4) each carrying at least one impeller (7, 8), wherein each impeller (7, 8) can deflect by a predetermined amount in directions substantially perpendicular t to the longitudinal axis of the shaft (3, 4) on which the impeller (7, 8) is mounted.
    Type: Application
    Filed: May 18, 2006
    Publication date: August 21, 2008
    Inventors: Paul Mark Paterson, Barry John Davies