Patents by Inventor Kenneth C. Thatcher

Kenneth C. Thatcher 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).

  • Methods of making asbestos-free, glass fibre reinforced, cement composite products and the products of such methods
    Patent number: 4389359
    Abstract: A method is provided for making a cement composite product such as a flat or profiled sheet, or a pipe, containing glass fibre as reinforcement instead of the traditional asbestos, wherein a cement and water slurry of flowable consistency is made with high shear agitation, the glass fibre is mixed with the slurry in a static mixing apparatus (i.e. having no moving parts) by bringing together flows of the slurry and of the glass fibre and then altering the path of the conjoined flow, and the glass fibre-containing mixture is immediately subjected to the conventional deposition on a water-permeable web, formation of a profile if desired, drainage of the water from the slurry through the web, and curing the deposited cement to form the product.
    Type: Grant
    Filed: March 17, 1981
    Date of Patent: June 21, 1983
    Assignee: Tegral Technology Limited
    Inventors: William H. Brunt, Kenneth C. Thatcher
  • Eavestrough downspout connector
    Patent number: D288230
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: February 10, 1987
    Inventor: Kenneth C. Thatcher