Patents by Inventor Alan R. Mikkelsen

Alan R. Mikkelsen 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).

  • Apparatus for debagging dust-containing or hazardous materials
    Patent number: 5222511
    Abstract: An apparatus for removing dust-containing or hazardous material from bags includes a vertical bag feeding chute having one or more vertically disposed knife blades fixed (no moving mechanical parts) in the chute to slice open the bag as it falls through the chute. The sliced bag is caught in a downwardly angled perforated basket disposed below the bag feeding chute where an operator operating through a glove box removes solid material from the interior of the sliced bag after most of the bag contents have fallen through the perforated receiving basket and into a mixing tank. The apparatus is particularly useful for debagging acrylamide monomer in the production of polyacrylamide homopolymers and copolymers.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: June 29, 1993
    Assignee: Diatec Environmental
    Inventors: Alan R. Mikkelsen, Edwin T. Sortwell
  • Method and apparatus for rapidly dissolving polymers in water
    Patent number: 4874588
    Abstract: A method and apparatus 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 5, 1985
    Date of Patent: October 17, 1989
    Assignee: Diatec Polymers
    Inventors: Edwin T. Sortwell, Manuel Slovinsky, Alan R. Mikkelsen
  • 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
  • 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