Patents by Inventor Grady A. Howell

Grady A. Howell 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 manufacturing fiber-reinforced structures incorporating recycled carpet fibers
    Patent number: 6682671
    Abstract: An initial process for preparing material to use in manufacturing fiber-reinforced structures. One embodiment envisions a method of manufacturing a cement board. The initial process includes providing an open mat of recycled carpet fibers in a container, placing a mortar mixture directly over the fiber mat, distributing the mortar through the fiber mat by moving a comb having bent tines through the mortar-fiber mixture, and vibrating the mortar-fiber mixture substantially simultaneously with the distribution of mortar through the fiber. Also provided is a method for making the final product.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: January 27, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Grady A. Howell, Philip G. Malone, Joe Gain Tom, Charles Arthur Weiss, Jr.