Patents by Inventor Benedict C. Lee

Benedict C. Lee 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).

  • Patent number: 4905585
    Abstract: A system and corresponding process for cleaning sugarbeet pulp comprising: (a) a tank wherein a sufficient amount of water is added to the pulp to form a first slurry containing about 0.1 to 4 wt-% pulp; (b) a screening apparatus for separating the first slurry into a top portion containing substantially all of the pulp and a bottom portion containing a major proportion of the free foreign material; (c) a mill for reducing the particle size and loosening of adherent foreign material from the pulp; (d) a tank for adding a sufficient amount of water to the top portion to form a second slurry containing about 0.1 to 4 wt-% pulp; (e) a screening apparatus for separating the second slurry into a upper portion containing substantially all of the pulp and a minor proportion of the loosened foreign material and a lower portion containing a major proportion of the loosened foreign material; (f) a tank for adding a sufficient amount of water to the upper portion to form a third slurry containing about 0.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: March 6, 1990
    Assignee: American Crystal Sugar Company
    Inventor: Benedict C. Lee
  • Patent number: 4770886
    Abstract: A system and corresponding process for cleaning sugarbeet pulp comprising: (a) a tank wherein a sufficient amount of water is added to the pulp to form a first slurry containing about 0.1 to 4 wt-% pulp; (b) a screening apparatus for separating the first slurry into a top portion containing substantially all of the pulp and a bottom portion containing a major proportion of the free foreign material; (c) a mill for reducing the particle size and loosening of adherent foreign material from the pulp; (d) a tank for adding a sufficient amount of water to the top portion to form a second slurry containing about 0.1 to 4 wt-% pulp (e) a screening apparatus for separating the second slurry into a upper portion containing substantially all of the pulp and a minor proportion of the loosened foreign material and a lower portion containing a major proportion of the loosened foreign material; (f) a tank for adding a sufficient amount of water to the upper portion to form a third slurry containing about 0.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: September 13, 1988
    Assignee: American Crystal Sugar Company
    Inventor: Benedict C. Lee