Patents Assigned to Estate of Thomas E. Allen
  • Patent number: 8511887
    Abstract: A cement mixing method and apparatus for mixing cement used in cementing oil wells casing and the mixer used in that method. The mixer employs a straight bulk cement inlet, five annular recirculation jets and five annular water jet orifices located downstream of the recirculation jets so that all of the jets discharge at an angle towards the mixing chamber and the discharge from the water jet orifices intersects with the flow from the recirculation jets. This five jet, intersecting flow design allows for more thorough wetting of the cement powder with a smaller, lighter, less expensive and more durable mixer that is less inclined to foul and easier to clean.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: August 20, 2013
    Assignee: Estate of Thomas E. Allen
    Inventor: Thomas E. Allen
  • Patent number: 8215823
    Abstract: A cement mixing method for mixing cement used in cementing oil wells casing and the mixer used in that method. The mixer employs a straight bulk cement inlet, five annular recirculation jets and five annular water jet orifices located downstream of the recirculation jets so that all of the jets discharge at an angle towards the mixing chamber and the discharge from the water jet orifices intersects with the flow from the recirculation jets. This five jet, intersecting flow design allows for more thorough wetting of the cement powder with a smaller, lighter, less expensive and more durable mixer that is less inclined to foul and easier to clean.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: July 10, 2012
    Assignee: Estate of Thomas E. Allen
    Inventor: Thomas E. Allen
  • Patent number: 8192070
    Abstract: A cement mixing method for mixing cement used in cementing oil wells casing and the mixer used in that method. The mixer employs a straight bulk cement inlet, five annular recirculation jets and five annular water jet orifices located downstream of the recirculation jets so that all of the jets discharge at an angle towards the mixing chamber and the discharge from the water jet orifices intersects with the flow from the recirculation jets. This five jet, intersecting flow design allows for more thorough wetting of the cement powder with a smaller, lighter, less expensive and more durable mixer that is less inclined to foul and easier to clean.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: June 5, 2012
    Assignee: Estate of Thomas E. Allen
    Inventor: Thomas E. Allen