Patents by Inventor John D. F. Ramsay

John D. F. Ramsay 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).

  • Method of preparing a catalyst
    Patent number: 4397770
    Abstract: A catalyst suitable for use in the treatment of motor vehicle exhaust emissions is made by contacting a substrate, preferably of an aluminium bearing ferritic alloy, with a first sol of refractory material followed by drying and firing, and preferably then contacting with a second sol of refractory material, which additionally contains a salt convertible to catalytic material, followed by drying and firing. The sols are obtained from refractory material, e.g., alumina, made by a vapor phase condensation method.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: August 9, 1983
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: James A. Cairns, James L. Woodhead, John D. F. Ramsay
  • Production of porous gels and ceramic materials
    Patent number: 4389385
    Abstract: The invention relates to gels produced by dispersing solid primary particles of an inorganic substance in a liquid to form a sol containing colloidal particles which are aggregates of the primary particles and drying the sol to produce a porous gel.The gels find applications in chromatography. Calcined gels give porous ceramic materials suitable for use as catalyst supports.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: June 21, 1983
    Assignee: United Kingdom Atomic Energy Authority
    Inventor: John D. F. Ramsay