Patents by Inventor Gordon E. Cleaver

Gordon E. Cleaver 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).

  • Production of vermiculite products
    Patent number: 4539046
    Abstract: A process for producing solid vermiculite products which are stable in water which comprises incorporating a source of ammonia or ammonium ions or a basic substance, preferably urea, in an aqueous suspension of vermiculite lamellae, shaping the suspension and removing water from the suspension by heating the shaped suspension at a temperature above 100.degree. C., preferably above 150.degree. C., such that ammonia or a basic substance is liberated within the suspension. The invention includes an aqueous suspension of vermiculite lamellae containing a source of ammonia or ammonium ions or a basic substance and a dry-powder mixture of vermiculite lamellae and a source of ammonia or ammonium ions or a basic substance.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: September 3, 1985
    Assignee: Imperial Chemical Industries PLC
    Inventors: Kevin T. McAloon, Iona E. Heeson, Gordon E. Cleaver