Patents by Inventor Christopher Mitchelmore

Christopher Mitchelmore 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).

  • Assembling a check valve having a seal
    Patent number: 9022055
    Abstract: An improved valve assembly having an integral single piece housing (1) having an inlet (15), an outlet and defining an inwardly extending wall forming a valve seat (3); a valve member (4) moveable within the housing (1) between a closed position and an open position and a seal (11) to form a fluid tight seal between the valve member (4) and the valve seat (3) when the valve member is in the closed position. The seal (11) also acting to retain the valve member (4) within the housing (1) and in which the housing defining end portions which extend axially away from the valve member (4) at any position of the valve member between the open and closed positions.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: May 5, 2015
    Assignee: Cambridge Reactor Design Limited
    Inventors: Bashir Husein Harji, Christopher Mitchelmore, Malcolm Withers
  • IMPROVED VALVE ASSEMBLY
    Publication number: 20110197978
    Abstract: An improved valve assembly having an integral single piece housing (1) having an inlet (15), an outlet and defining an inwardly extending wall forming a valve seat (3); a valve member (4) moveable within the housing (1) between a closed position and an open position and a seal (11) to form a fluid tight seal between the valve member (4) and the valve seat (3) when the valve member is in the closed position. The seal (11) also acting to retain the valve member (4) within the housing (1) and in which the housing defining end portions which extend axially away from the valve member (4) at any position of the valve member between the open and closed positions.
    Type: Application
    Filed: October 16, 2009
    Publication date: August 18, 2011
    Applicant: Cambridge Reactor Design Limited
    Inventors: Bashir Husein Harji, Christopher Mitchelmore, Malcolm Withers