Patents by Inventor Edwin T. Sortwell

Edwin T. Sortwell 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 rapidly dissolving polymer gels in water
    Patent number: 4845192
    Abstract: A method of rapidly dissolving particles of water soluble polymer gels in water. A suspension of gel particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby finely sliced particles are formed and instantly dissolve in water. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.
    Type: Grant
    Filed: March 26, 1986
    Date of Patent: July 4, 1989
    Assignee: Diatec Polymers
    Inventors: Edwin T. Sortwell, Alan R. Mikkelsen
  • Dispersion of dry polymers into water
    Patent number: 4640622
    Abstract: A method and apparatus for rapidly dispersing particles of dry, water soluble polymer into water wherein air, water and said polymer particles are introduced to a chamber for thorough contact of the polymer with the water to form a mixture of aqueous polymer dispersion and entrained air. The mixture is immediately subjected to shear forces to separate any agglomerated particles into individual particles, and to prevent further agglomeration.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: February 3, 1987
    Assignee: Diatec Polymers
    Inventor: Edwin T. Sortwell
  • Method of dispersing dry, water-soluble polymers in water
    Patent number: 4603156
    Abstract: A method and apparatus for rapidly dispersing particles of dry, water soluble polymer into water wherein air, water and said polymer particles are introduced to a chamber for thorough contact of the polymer with the water to form a mixture of aqueous polymer dispersion and entrained air. The mixture is immediately subjected to shear forces to separate any agglomerated particles into individual particles, and to prevent further agglomeration.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: July 29, 1986
    Assignee: Diatec Polymers
    Inventor: Edwin T. Sortwell
  • Method of rapidly dissolving polymers in water
    Patent number: 4529794
    Abstract: A method for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: July 16, 1985
    Assignee: Diatec Polymers
    Inventors: Edwin T. Sortwell, Manuel Slovinsky, Alan R. Mikkelsen
  • Method of rapidly dissolving polymers in water
    Patent number: 4507470
    Abstract: A method for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: March 26, 1985
    Assignee: Diatec Polymers
    Inventors: Edwin T. Sortwell, Manuel Slovinsky, Alan R. Mikkelsen
  • Method of rapidly dissolving polymers in water
    Patent number: 4499214
    Abstract: Water-soluble polymers are rapidly dissolved in water by dispersing finely divided particles of the polymer into a liquid carrier in which the polymer is insoluble to form a suspension. The suspension is then added to water in order to release the polymer into the water as discrete particles that rapidly dissolve. The polymer particles are preferably prepared by cryogenic grinding, or another non-molecularly destructive process.
    Type: Grant
    Filed: May 3, 1983
    Date of Patent: February 12, 1985
    Assignee: Diachem Industries, Inc.
    Inventor: Edwin T. Sortwell
  • System for handling and applying a non-suspended refractory slurry
    Patent number: 3949937
    Abstract: System for handling and applying a non-suspended refractory slurry to ingot stools used in the production of steel ingots, including an apparatus capable of selectively applying refractory slurry to ingot stools which receives slurry from a storage tank. An agitator is provided in the tank to continually agitate the slurry, and wet air is used to clean the lines carrying the slurry when they are not being used for application of slurry to prevent clogging.
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: April 13, 1976
    Assignee: Nalco Chemical Company
    Inventors: Edwin T. Sortwell, David S. Kerr