Patents by Inventor Kenneth E. McConnaughay, deceased

Kenneth E. McConnaughay, deceased 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 of making a bituminous emulsion
    Patent number: 3979323
    Abstract: A method of making a bituminous emulsion in which a fatty acid is mixed with a water solution of a base to form a water dispersion of said acid. Said dispersion is mixed with an aminoethyl substituted imidazoline to form a water soluble salt of said aminoethyl substituted imidazoline and acid. The salt is dissolved in water and then mixed in an emulsifying mill with a petroleum bitumen, said salt being added to the bitumen in an amount of from about 0.5% to about 2% based upon the weight of the bitumen.
    Type: Grant
    Filed: August 20, 1973
    Date of Patent: September 7, 1976
    Inventors: John Spahr, Kenneth E. McConnaughay, deceased, Esther L. McConnaughay, executrix