Patents by Inventor Eric L. Allison

Eric L. Allison 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).

  • Process for applying low-cement castable refractory material
    Patent number: 6022593
    Abstract: A method for placing a thixotropic low-cement castable refractory material without the necessity for forms. A low-cement castable material is mixed with a measured amount of water, then is pumped hydraulically through a hose to a nozzle assembly. Compressed air and a cement setting agent are added to the mixture at the nozzle. The addition of the setting agent at the nozzle overcomes the thixotropic nature of the low-cement castable, so that it will immediately "set" in position when sprayed onto a surface, including vertical and overhead surfaces.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: February 8, 2000
    Assignees: Reno & Son, Inc., Oak Mountain Industries, Inc.
    Inventor: Eric L. Allison
  • Process for applying low-cement castable refractory material
    Patent number: 5628940
    Abstract: A method for placing a thixotropic low-cement castable refractory material without the necessity for forms. A low-cement castable material is mixed with a measured amount of water, then is pumped hydraulically through a hose to a nozzle assembly. Compressed air and a cement setting agent are added to the mixture at the nozzle. The addition of the setting agent at the nozzle overcomes the thixotropic nature of the low-cement castable, so that it will immediately "set" in position when sprayed onto a surface, including vertical and overhead surfaces.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: May 13, 1997
    Assignees: Reno & Son, Inc., Oak Mountain Industries, Inc.
    Inventor: Eric L. Allison