Patents by Inventor Ian R. Walters

Ian R. Walters 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 for producing rigid articles of refractory fibers
    Patent number: 4205032
    Abstract: The present invention provides a method of rigidizing articles of refractory fibres. This is achieved by impregnating the fibre article with a zirconium salt, a gellation-inducing agent and a gellation-delaying agent.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: May 27, 1980
    Assignee: Zirconal Processes Limited
    Inventors: Ian R. Walters, Harold G. Emblem
  • Method for making refractory articles
    Patent number: 4201594
    Abstract: The invention concerns the binding of refractory powders into self-supporting `green` shapes which are fired to provide refractory objects. In accordance with the invention the binders are based on zirconium salts and include a separate gell time delaying agent to ensure satisfactory gelling and to achieve control and to allow complex shapes to be made.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: May 6, 1980
    Assignee: Zirconal Processes Limited
    Inventors: Ian R. Walters, Harold G. Emblem