Patents by Inventor Nelson E. Smith, Jr.

Nelson E. Smith, Jr. 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: 4806357
    Abstract: A device for encapsulating seeds in a gel. A nozzle with dual vertical, rectilinear, concentric tubes--i.e., an inner tube and an outer tube--is supplied with gel that is fed into the outer tube. The gel goes down the outer tube to an outlet from the inner tube, so that a meniscus of gel is stretched across the outlet. Singulated seeds are fed into an inlet of the inner tube, so that each seed--and only one--drops down upon a meniscus of gel. A slight puff of air is caused to pass down the inner tube and slightly inflate the meniscus upon which a seed has dropped. More gel is fed, to cause the meniscus to separate from the outlet and form a drop of gel with a seed inside, which drops down into a fixative bath that causes the gel to set.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: February 21, 1989
    Assignee: The Regents of the University of California
    Inventors: Roger E. Garrett, Nelson E. Smith, Jr., James J. Mehlschau
  • Patent number: 4363408
    Abstract: Method and apparatus for grading large batches of fruit by sampling technique. A sample, drawn from a batch, is divided into two approximately equal portions, one portion being inspected without being weighed. The other portion is weighed and then inspected. Grade-defect material is placed into separately classified buckets and weighed one by one. Grade-defect percentages are then determined and acceptance and grading thereby determined. A weigh hopper is suspended from a load cell by a pair of wires, one at each side of the weigh hopper. A turnbuckle on each wire enables adjustment, and excessive motion of the weigh hopper is dampened. The load cell is suspended from a shock transmission member which rests on a shock-absorbing spring that is compressed when shock loads are exerted.
    Type: Grant
    Filed: January 7, 1981
    Date of Patent: December 14, 1982
    Assignee: The Regents of The University of California
    Inventors: Michael O'Brien, Nelson E. Smith, Jr., Stanley E. Prussia