Patents by Inventor Charles W. Ehrgott

Charles W. Ehrgott 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 measuring consistency of non-Newtonian fluids
    Patent number: 4495798
    Abstract: A method and device for determining the consistency of a non-Newtonian fluid in accordance with USDA Bostwick consistency standards comprises diverting a partial stream from a main production stream of the fluid. The flowrate of this partial stream in weight per time is measured under predetermined pressure drop conditions. The USDA Bostwick value of consistency is then derived from the measured flowrate in accordance with a predetermined functional relationship.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: January 29, 1985
    Assignee: Chesebrough-Pond's Inc.
    Inventor: Charles W. Ehrgott
  • Method of producing a darkened freeze-dried coffee
    Patent number: 4138502
    Abstract: The color of freeze dried coffee can be darkened by carefully controlling the pressure in the drying chamber during the first 1 to 5 hours of the drying cycle. By maintaining the pressure at between 350 to 650 microns of mercury for the specified time, a surface darkening is achieved without allowing the product to actually melt or puff. Thus, a high quality freeze dried coffee is obtained with a more desirable appearance.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: February 6, 1979
    Assignee: General Foods Corporation
    Inventors: Charles W. Ehrgott, David C. Edwards
  • Method and apparatus for forming chewing gum base and product
    Patent number: 3995064
    Abstract: Chewing gum base is prepared by separately blending selected groups of ingredients, and then combining and mixing the groups in predetermined order.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: November 30, 1976
    Assignee: Life Savers, Inc.
    Inventors: Charles W. Ehrgott, Raymond L. Roy