Patents by Inventor Paul Geoffrey Gregory

Paul Geoffrey Gregory 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).

  • Pump assembly
    Patent number: 6884031
    Abstract: A pump assembly particularly for use in high pressure operations is disclosed, which pump assembly is a barrel casing cartridge pump assembly which includes a pump cartridge having a plurality of impeller stages, and a barrel body casing which encases a portion of the pump cartridge. The barrel casing includes a centrally located suction branch which directly feeds a first impeller stage which is located centrally of the pump cartridge. Each impeller of the pump cartridge includes an eye for receiving fluid, the arrangement being such that each eye faces towards the suction branch.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: April 26, 2005
    Assignee: Weir Pumps Limited
    Inventor: Paul Geoffrey Gregory
  • Pump assembly
    Publication number: 20030021681
    Abstract: A pump assembly particularly for use in high pressure operations is disclosed, which pump assembly is a barrel casing cartridge pump assembly which includes a pump cartridge having a plurality of impeller stages, and a barrel body casing which encases a portion of the pump cartridge. The barrel casing includes a centrally located suction branch which directly feeds a first impeller stage which is located centrally of the pump cartridge. Each impeller of the pump cartridge includes an eye for receiving fluid, the arrangement being such that each eye faces towards the suction branch.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Applicant: WEIR PUMPS LIMITED
    Inventor: Paul Geoffrey Gregory