Patents by Inventor Almand O. Barrett

Almand O. Barrett 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: 3989009
    Abstract: A fluid conductivity measurement apparatus in which the minimum conductivity of one fluid of a group of fluids is determined by comparing electrical conductivities, and the ratios of each of the conductivities to the minimum conductivity are calculated. Where cow's milk is the fluid passing through the apparatus, a determined deviant increase in ratio has been found to be evidence of a high probability of bovine mastitis.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: November 2, 1976
    Assignee: Sed Systems Ltd.
    Inventors: James D. J. Robar, David G. Glass, Almand O. Barrett