Patents by Inventor Patrick Terence Bourke

Patrick Terence Bourke 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 making a composite surface elements of stone and lightweight sheet material
    Patent number: 4063982
    Abstract: The invention relates to a method of manufacturing surface elements such as tiles or panels consisting of a thin lamina of natural stone bonded to a backing consisting of a multicellular paper core material of substantially greater thickness than the lamina which at least on the side remote from the stone lamina has a skin of tenacious sheet material bonded thereto. The method comprises bonding the backing to a stone slab and thereafter severing from the slab a thin lamina of stone with the backing attached.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: December 20, 1977
    Inventor: Patrick Terence Bourke
  • Marble-faced composite surface element
    Patent number: 3963846
    Abstract: The invention provides surface elements such as tiles or panels consisting of a thin lamina of natural stone bonded to a backing consisting of a multicellular paper core material of substantially greater thickness than said lamina which at least on the side remote from the stone lamina has a skin of tenacious sheet material bonded thereto. The resultant composite element is extremely rigid, light and cheap to produce in comparison with solid stone and may be cut into any desired shape and used as a substitute for solid stone, but with the advantages of lightness, strength and low cost thus enabling such surface elements to be used for many purposes where the use of solid stone would be economically or practicably prohibitive.
    Type: Grant
    Filed: September 4, 1973
    Date of Patent: June 15, 1976
    Inventor: Patrick Terence Bourke, Earl of Mayo