Patents by Inventor Charles E. Langley

Charles E. Langley 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).

  • Patent number: 5620728
    Abstract: The present invention pertains to a method of obtaining oil from grain materials such as rice bran, wheat mill feed, rapeseed, amaranth, and similar grains.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: April 15, 1997
    Assignee: Food Sciences, Inc.
    Inventors: Charles E. Langley, Stanley Finelt
  • Patent number: 5445841
    Abstract: A method of obtaining oil from grain materials such as rice bran, wheat mill feed, rapeseed, amaranth, and similar grains, by stabilizing the oil contained in the grain material (when necessary) while increasing the porosity of such grain material; extracting oil from the grain material by contact with a solvent in vapor form; and, separating extracted oil/solvent compositions into fractions containing various amounts of saturated and unsaturated oils. A solvent in vapor form is also used to remove oils from: previously-extracted oil seeds, which were extracted using a less efficient extraction method; flaked or crushed vegetable matter; and grain-based food products such as chips, crackers and noodles.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: August 29, 1995
    Assignee: Food Sciences, Inc.
    Inventors: Phillip S. Arendt, Charles E. Langley
  • Patent number: 5408924
    Abstract: Apparatus for extraction of edible oils from finely divided oleagenous vegetable matter by flowing solvent vapor through a continuously moving horizontal bed of the vegetable matter at a temperature not greater than about 210.degree. F., to form a miscella of solvent and extracted oil, separating a portion of the miscella from the marc, and blowing a gas through a continuously moving horizontal bed of the marc and remaining miscella to separate additional miscella. The flow of gas through the bed cools the bed to provide cooling for heat exchanger water to be used in the process.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: April 25, 1995
    Assignee: Food Sciences, Inc.
    Inventors: Phillip S. Arendt, Charles E. Langley