Patents by Inventor Stephen K. Cowlam

Stephen K. Cowlam 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).

  • Sphere/liquid separator and separation method
    Patent number: 4576765
    Abstract: An apparatus and a method are provided for separating liquid from small spheres, for example spheres formed by gel precipitation. The apparatus comprises sloping screening decks (12, 14), arranged in stepped relationship so that spheres tumble down onto the lower screening deck (14) after passing along the upper screening deck (12), each screening deck comprising a large number of upright plates (30, 60) spaced apart from each other and extending in the direction of slope, so that the liquid drains down between the plates. Alternate plates might be replaced by rods when separating extremely small spheres from a liquid.The apparatus has no moving parts, and even after inflow of the liquid stops, the spheres still continue to pass through the apparatus.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: March 18, 1986
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Stephen K. Cowlam, Steven Y. Moss, Claude L. Stockwell, Victor R. Phillips