Patents by Inventor Robert W. Hull

Robert W. Hull 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).

  • Realignment tool for aperture mating surface
    Patent number: 4878371
    Abstract: A tool for realigning a warped aperture mating surface of a flanged oil sump comprising a flange engaging yoke, a force member, and an aperture engaging member coacting with said yoke and said force member to realign said warped surface.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: November 7, 1989
    Inventor: Robert W. Hull
  • Method for treating the residue from the production of phosphorochloridothionates
    Patent number: 4364911
    Abstract: The invention pertains to a method of treating the distillation residue from the production of phosphorochloridothionates on a continuous or semi-continuous basis. The method comprises, agitating the residue with water to form a slurry which is storable, or pumpable at controlled rates to hydrolyzers for continuous or semi-continuous hydrolysis. The disclosed method, in addition to producing usable byproducts such as sulfur, phosphoric acid and hydrochloric acid also in contrast to prior art methods, significantly decreases fuel consumption and reduces the size and capacity of the facilities utilized to abate the emission of odorous gases to the atmosphere.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: December 21, 1982
    Assignee: Stauffer Chemical Company
    Inventors: Russell B. Caffy, Mark S. Carron, Robert W. Hull, Pawan K. Jain, Harold S. Mickley