Patents by Inventor William J. Oberley

William J. Oberley 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).

  • Non-resinous, uncured tire retardant and products produced therewith
    Patent number: 4373010
    Abstract: Synergistic fire retardants for wood and other cellulosic materials which are substantially non-hygroscopic and which do not require high curing temperatures in the material treated are formed of the partial reaction product of dicyandiamide, phosphoric acid, boric acid and water wherein the combined weight ratio of dicyandiamide and phosphoric acid to boric acid is from about 60 to about 40 to from about 90 to about 10.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: February 8, 1983
    Assignee: Koppers Company, Inc.
    Inventor: William J. Oberley
  • Compositions for imparting fire retardance to wood
    Patent number: 4010296
    Abstract: Chemical compositions are disclosed for imparting fire retardancy to wood comprising an aqueous solution of partially reacted monomethylol dicyanadiamide, melamine and phosphoric acid having a molar ratio of ingredients of monomethylol dicyandiamide to melamine of from about 11.5:1.0 to about 3.0:1.0 and a mole ratio of phosphoric acid to monomethylol dicyandiamide plus melamine of from about 1.0:1.0 to 1.0:1.5. The wood is impregnated with dilute aqueous solutions of the partially reacted chemical composition and then cured in the wood to impart to the wood low hygroscopic, leach resistant, fire retardant properties.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: March 1, 1977
    Inventor: William J. Oberley
  • Compositions for imparting fire retardance to wood
    Patent number: 3986881
    Abstract: Chemical compositions are disclosed for imparting fire retardancy to wood comprising an aqueous solution of partially reacted monomethylol dicyandiamide, melamine and phosphoric acid having a molar ratio of ingredients of monomethylol dicyandiamide to melamine of from about 11.5:1.0 to about 3.0:1.0 and a mole ratio of phosphoric acid to monomethylol dicyandiamide plus melamine of from about 1.0:1.0 to 1.0:1.5. The wood is impregnated with dilute aqueous solutions of the partially reacted chemical composition and then cured in the wood to impart to the wood low hygroscopic, leach resistant, fire retardant properties.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: October 19, 1976
    Assignee: Koppers Company, Inc.
    Inventor: William J. Oberley
  • Chromated copper arsenate wood preservative compositions
    Patent number: 3957494
    Abstract: Chromated copper arsentate wood preserving solutions in which the ratio of hexavalent chromium to trivalent chromium in the solution is between about 4.0:1.0 to about 1.0:1.0 give improved penetration into the wood, better retention of preservative in the wood, and improved stability of the treating solution. The solutions contain an acid to maintain the required pH, prevent corrosion, and further improve the solution stability.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: May 18, 1976
    Assignee: Koppers Company, Inc.
    Inventor: William J. Oberley