Patents by Inventor Harvey W. Thompson

Harvey W. Thompson 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).

  • Method of low-temperature stratified chilled water storage
    Patent number: 5655377
    Abstract: The lower-most temperature of the thermal mass in a chilled water stratified storage tank is lowered without reducing its density by the addition of sodium nitrite and sodium nitrate, alone or in combination, preserving thermal stratification so that both warm and chilled water may be stored in the tank, a benefit not previously obtained without the use of chemicals damaging to the environment. A solution of sodium nitrite and sodium nitrate lowers the freezing point of the cooling water to -13.2.degree. C. (8.3.degree. F.) yet still permits the chilled water to stratify in the storage tank.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: August 12, 1997
    Assignee: Trigen Energy Corporation
    Inventors: Goran Mornhed, John Young, Harvey W. Thompson
  • Method of low-temperature stratified chilled water storage
    Patent number: 5465585
    Abstract: The lower-most temperature of the thermal mass in a chilled water stratified storage tank is lowered without reducing its density by the addition of sodium nitrite and sodium nitrate, alone or in combination, preserving thermal stratification so that both warm and chilled water may be stored in the tank, a benefit not previously obtained without the use of chemicals damaging to the environment. A 7% solution of sodium nitrite and sodium nitrate in a 2 to 1 ratio lowers the freezing point of the cooling water to -3.75.degree. C. (25.25.degree. F.) yet still permits the chilled water to stratify in the storage tank.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: November 14, 1995
    Assignee: Trigen Energy Corporation
    Inventors: Goran Mornhed, John Young, Harvey W. Thompson
  • Composition and method for deoxygenation
    Patent number: 4626411
    Abstract: A composition containing a hydroxylamine compound; a quinone, a dihydroxybenzene, a diaminobenzene, or an aminohydroxybenzene compound; and a neutralizing amine is an excellent oxygen scavenger and corrosion inhibitor in boiler water and other aqueous systems.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: December 2, 1986
    Assignee: Dearborn Chemical Company, Limited
    Inventors: John J. Nemes, Harvey W. Thompson, John E. Waller