Patents by Inventor Robert Daniel Dickson

Robert Daniel Dickson 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).

  • Means of fumigating raw and finished agricultural products
    Patent number: 4059048
    Abstract: An elongated pipe installed the depth of a bulk storage bin or silo for raw or finished agricultural goods receives through a capped exterior access opening a supply of solid chemical fumigant for producing phosphine gas. The buildup of gas in the pipe creates pressure so that the gas exits through hooded ports formed in the pipe to permeate and saturate the bulk goods in the bin and to kill pests therein. Residual fumigant is removed from the pipe.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: November 22, 1977
    Inventor: Robert Daniel Dickson