Patents by Inventor John M. Dale

John M. Dale 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).

  • Yellow colorant composition and paints utilizing the same
    Patent number: 4406706
    Abstract: A yellow colorant composition comprising elemental sulfur having associated intimately therewith a yellow coloring substance and the resulting paint comprising a paint base and said colorant composition.
    Type: Grant
    Filed: March 18, 1982
    Date of Patent: September 27, 1983
    Assignee: Southwest Research Institute
    Inventor: John M. Dale
  • Sulfur compounds and method of making same
    Patent number: 4290816
    Abstract: Elemental sulfur is reacted in a certain manner with at least first and second hydrocarbons to form an asphalt-like material.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 22, 1981
    Assignee: Southwest Research Institute
    Inventors: Allen C. Ludwig, John M. Dale, Henry F. Frazier
  • Production of foamed sulfur compositions
    Patent number: 4022857
    Abstract: Sulfur-based foams are produced by heating to liquid state a sulfur formulation containing a minor amount of a gas-producing component in a first (molten) zone; passing the mixture maintained in liquid form to a second (mixing) zone where it is mixed with a foaming agent which in combination with the gas-produced compound releases gas, and the gas-containing mixture is passed from the second zone for use as a cellular construction material. Apparatus for carrying out the process is provided.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: May 10, 1977
    Assignee: Chevron Research Company
    Inventors: John M. Dale, Allen C. Ludwig
  • Continuous sulfur foam preparation using polyisocyanates
    Patent number: 4011179
    Abstract: A process for the production of sulfur foam containing at least 50 weight percent sulfur, which comprises:A. heating sulfur in a first zone to a temperature above about 100.degree. C to obtain molten sulfur and reacting the molten sulfur with an organic protonic acid which is reactive with molten sulfur so as to incorporate the organic acid with sulfur to form a sulfur-organic acid adduct containing unreacted protonic acid groups;B. passing said sulfur adduct in liquid state out of said first zone and into a separate mixer; andC. mixing and reacting in said mixer a polyisocyanate with the unreacted acid groups of said sulfur adduct to thereby, upon removal of the polyisocyanate-acid group reaction product from the mixer, release gas and generate a foam.Preferably the sulfur adduct is formed by reacting sulfur with a plasticizer as well as the acid.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: March 8, 1977
    Assignee: Chevron Research Company
    Inventors: Gar Lok Woo, John M. Dale, Allen C. Ludwig
  • Sulfur compounds and method of making same
    Patent number: RE31575
    Abstract: Elemental sulfur is reacted in a certain manner with at least first and second hydrocarbons to form an asphalt-like material.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: May 1, 1984
    Assignee: Southwest Research Institute
    Inventors: Allen C. Ludwig, John M. Dale, Henry F. Frazier