Patents by Inventor Margaret Fitzwater

Margaret Fitzwater 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).

  • Center-filled food products
    Patent number: 4808422
    Abstract: A process for producing center-filled food products comprises forming a hollow cylindrical shell of edible material having a single continuous longitudinal slit. The shell is conditioned until it is able to maintain its hollow, cylindrical shape and longitudinal slit without external support, and may subsequently be dried to a shelf stable moisture content. The shell is then filled through the longitudinal slit with an edible food substance which is substantially stable at product storage temperatures. The shell may then be cut to final product size, externally coated with seasoning, and packaged.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: February 28, 1989
    Assignee: Frito-Lay, Inc.
    Inventors: Wendell Ward, Surinder Kumar, Melba Mack, Lewis Keller, Margaret Fitzwater
  • Process for producing center-filled food products
    Patent number: 4613509
    Abstract: A process for producing center-filled food products comprises forming a hollow cylindrical shell of edible material having a single continuous longitudinal slit. The shell is conditioned until it is able to maintain its hollow, cylindrical shape and longitudinal slit without external support, and may subsequently be dried to a shelf stable moisture content. The shell is then filled through the longitudinal slit with an edible food substance which is substantially stable at product storage temperatures. The shell may then be cut to final product size, externally coated with seasoning, and packaged.
    Type: Grant
    Filed: June 7, 1984
    Date of Patent: September 23, 1986
    Assignee: Frito-Lay, Inc.
    Inventors: Wendell Ward, Surinder Kumar, Melba Mack, Lewis Keller, Margaret Fitzwater
  • Food product with opposite phase-shifted corrugations of the same frequency and amplitude and method and apparatus of manufacture
    Patent number: 4601227
    Abstract: Food product pieces are formed with corrugations on opposite sides thereof, wherein the corrugations are substantially parallel and of substantially equal frequency and amplitude, and wherein the corrugations on one side are phase-shifted with respect to the corrugations on the opposite side by about 1/4 of the pitch distance of the corrugations. As a result, a food product piece with unique texture, flavor and appearance is produced after later cooking processes.
    Type: Grant
    Filed: January 15, 1985
    Date of Patent: July 22, 1986
    Assignee: Frito-Lay, Inc.
    Inventors: Margaret Fitzwater, Lewis C. Keller
  • Potato product with opposite phase-shifted corrugations of the same frequency and amplitude
    Patent number: 4511586
    Abstract: Food product pieces are formed with corrugations on opposite sides thereof, wherein the corrugations are substantially parallel and of substantially equal frequency and amplitude, and wherein the corrugations on one side are phase-shifted with respect to the corrugations on the opposite side by about 1/4 of the pitch distance of the corrugations. As a result, a food product piece with unique texture, flavor and appearance is produced after later cooking processes.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: April 16, 1985
    Assignee: Frito-Lay, Inc.
    Inventors: Margaret Fitzwater, Lewis C. Keller