Patents by Inventor Gerald R. Arbuthnot

Gerald R. Arbuthnot 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).

  • Fluidizable bed structure
    Patent number: 4381728
    Abstract: A fluidizable bed structure with a rigid support for carrying a bed of fluidizable powder, the support being at least two inches deep and having its porosity formed by interstices which reduce in total area from the lower surface of the support to its upper or support surface. A fluidizable bed structure is also described having a support which has an electrode contacting it with the depth of the support from its upper surface to the electrode sufficient to prevent arcing from the electrode to the upper surface.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: May 3, 1983
    Assignee: Northern Telecom Limited
    Inventors: Jorg-Hein Walling, Gerald R. Arbuthnot, Andre Dumoulin
  • Electrode for a fluidizable bed coating apparatus
    Patent number: 4380965
    Abstract: An electrode for a fluidizable bed coating apparatus comprising a plurality of electrically conductive tubes and a tube carrier. The tubes extend from the carrier and have free ends at which there is a concentration in intensity of an electric field when the tubes are connected into an electric circuit, and the tubes channel fluidizing gas through them and through the concentrations in intensity of the electric field.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: April 26, 1983
    Assignee: Northern Telecom Limited
    Inventors: Jorg-Hein Walling, Andre Dumoulin, Gerald R. Arbuthnot
  • Drying oven for indefinite length material
    Patent number: 4379435
    Abstract: A drying oven for an indefinite length of material having a drying chamber surrounded by an annular heat exchanger, the drying chamber having an inlet and outlet for material passing through it. The heat exchanger has heat exchange members defining flow passages extending axially and around the chamber and having an incoming passage interconnected with an outgoing passage by means of the drying chamber.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: April 12, 1983
    Assignee: Northern Telecom Limited
    Inventors: Jong-Hein Walling, Gerald R. Arbuthnot, Michel Gervais