Patents by Inventor Frank X. Le Blanc

Frank X. Le Blanc 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 producing lightweight cement blocks
    Patent number: 5569426
    Abstract: A lightweight cement block and a method of producing the lightweight cement block, comprising the steps of mixing three parts by volume sawdust with water to form a first mixture having a relative moisture content in the range of 40% to 44%; adding one part by volume sand to the first mixture to form a second mixture; mixing the second mixture with water until the relative moisture content of the second mixture is in the range of 40% to 44%; adding one part by volume cement to the second mixture to form a third mixture; mixing the third mixture with water until the relative moisture content is in the range of 40% to 44%; forming the third mixture into a block. The resultant block comprises sawdust in the range of 30% to 70% by volume, sand in the range of 10% to 40% by volume and cement in the range of 10% to 40% by volume.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: October 29, 1996
    Assignee: Enviro Products Ltd.
    Inventor: Frank X. Le Blanc