Patents by Inventor Peter Frederick Hawthorne

Peter Frederick Hawthorne 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).

  • Refractory heat insulating materials
    Patent number: 3976728
    Abstract: A shaped article of refractory heat insulating material is made by forming a mixture of inorganic refractory fibrous material and a binding agent which may be soluble or dispersible in a suitable liquid medium, forming the mixture to the desired shape, drying the shape in a first drying step, impregnating the so-dried shape in a second drying step, one of the drying steps being an homogeneous drying step and the other being a non-homogeneous drying step.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: August 24, 1976
    Assignee: Foseco International Limited
    Inventor: Peter Frederick Hawthorne
  • Method of protecting a surface from a heat source
    Patent number: 3959063
    Abstract: A method of protecting a surface from a heat source by adhering a refractory heat-insulating material to the surface using an adhesive consisting essentially of 20 - 90% by weight aqueous alkali metal silicate solution 10 - 80% by weight of a powdered metal and up to 15% by weight of a fibrous refractory material.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: May 25, 1976
    Assignee: Foseco International Limited
    Inventor: Peter Frederick Hawthorne
  • Protection of turbine casings
    Patent number: 3949147
    Abstract: Shaped refractory articles, especially turbine casing liners, are formed of a refractory fibre/watersoluble binder composition, the hardness, strength and density of which do not vary across the bulk composition.
    Type: Grant
    Filed: January 29, 1973
    Date of Patent: April 6, 1976
    Assignee: Foseco International Limited
    Inventor: Peter Frederick Hawthorne