Patents by Inventor Roland P. Chapman

Roland P. Chapman 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).

  • Apparatus for use in producing a fluidized bed of granular material
    Patent number: 4146466
    Abstract: A fluidizing tank for granular refractory material has a porous bottom wall that is displaceable downwardly from a bottom edge of the tank in order to define a gap through which contaminating precipitated particles can fall from the tank, preferably aided by a downward slope of the porous wall. A receptacle housing the tank contains a vibratory sieve for separating the particles from the material falling from the tank so that the sieved material may be returned to the tank, preferably directly by mechanical or suction transfer from the bottom of the receptacle.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: March 27, 1979
    Assignee: British Leyland UK Limited
    Inventor: Roland P. Chapman