Patents by Inventor Allen F. Nightingale

Allen F. Nightingale 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 and apparatus for mixing particulate materials
    Patent number: 4626104
    Abstract: A method and apparatus for blending particulate materials in which a plurality of blending chambers receive, by a series of installments, pre-mixed ingredients so as to ensure that each blending chamber contains an average sample. The blending chambers are then discharged in sequence to provide an output as a series of sub-batches which each comprise the predetermined proportions of ingredients.
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: December 2, 1986
    Assignee: W & A Bates Limited
    Inventors: Ronald H. Pointon, Allen F. Nightingale