Patents by Inventor Barry J. Davies

Barry J. Davies 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).

  • Patent number: 5634831
    Abstract: A water jet propulsion unit intended for use in jet boats. The unit has an intake section, a pump section and a nozzle section. In the pump section there are two counter-rotating impellers on concentric counter-rotating shafts calibrated so that any radial flow created in the upstream impeller is converted into axial flow by the downstream impeller. In one embodiment the nozzle section has a throttled outlet to allow for a high mass/low pressure operation while maintaining pump priming. There are no support structures or stators downstream of the intake section in the preferred embodiment.
    Type: Grant
    Filed: June 8, 1995
    Date of Patent: June 3, 1997
    Inventors: Richard G. Davies, Barry J. Davies
  • Patent number: 3963450
    Abstract: A reinforced ferrous metal casting and a method of making a reinforced ferrous metal casting wherein the reinforcing rods are located within tubular metal sheaths such that the metal sheaths become fused and bonded to the casting while the reinforcing rods located within the metal sheaths are not fused with respect to the sheaths and are, therefore, slidable within the casting. The reinforcing rods are preferably spaced from the sheath by a refractory coating.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: June 15, 1976
    Assignee: Canron Limited
    Inventor: Barry J. Davies