Patents by Inventor Leo G. Mayotte

Leo G. Mayotte 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).

  • Dust recycling to rotary kilns
    Patent number: 5007823
    Abstract: A process and apparatus are described for recycling dust generated in rotary kiln processes such as cement manufacture. The invention resides in enriching the atmosphere in the kiln with oxygen so as to increase the heat generated and accommodate the introduction of recycled kiln dust. The oxygen enrichment and dust recycle are balanced so that the kiln operates to produce the same quality product as it did without either oxygen enrichment or dust recycle.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: April 16, 1991
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Leo G. Mayotte, Prince B. Eleazer