Patents by Inventor Alan Thomas Parsons

Alan Thomas Parsons 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).

  • Pumping system with clutch and associated by-pass
    Patent number: 7033143
    Abstract: This invention relates to a pumping system. The design of the system is such that bi-directional operation can be achieved using a significantly smaller and hence lighter unit than those currently available. It uses the direction of rotation of the drive shaft to control the opening and closure of the by-pass means for controllably returning the fluid to the first reservoir.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: April 25, 2006
    Assignee: QinetiQ Limited
    Inventors: Colin Andrew Mead, Alan Thomas Parsons, Stephen Arthur Pointer, Mark Arwyn Bennett
  • Pumping system
    Publication number: 20040131474
    Abstract: This invention relates to a pumping system. The design of the system is such that bi-directional operation can be achieved using a significantly smaller and hence lighter unit than those currently available. It uses the direction of rotation of the drive shaft to control the opening and closure of the by-pass means for controllably returning the fluid to the first reservoir.
    Type: Application
    Filed: November 3, 2003
    Publication date: July 8, 2004
    Inventors: Colin Andrew Mead, Alan Thomas Parsons, Stephen Arthur Pointer, Mark Arwyn Bennett