Patents by Inventor David H. Farrar

David H. Farrar 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).

  • Combustion of liquid hydrocarbons
    Patent number: 4998876
    Abstract: A process for improving combustion of liquid hydrocarbons and reducing NO.sub.x emissions. The process comprises burning the liquid hydrocarbon in the presence of an additive composition to improve measurably the combustion efficiency. The additive composition comprises a dicyclopentadienyliron compound in combination with a suitable organic solvent. By virtue of using the additive compound, the excess air requirements can be adjusted downwardly to reduce NO.sub.x emissions in combustion products.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: March 12, 1991
    Assignee: Velino Ventures Inc.
    Inventor: David H. Farrar
  • Combustion of carbon containing materials in a furnace
    Patent number: 4979447
    Abstract: A process for improving combustion efficiency in a coal-fired furnace comprising injecting an additive composition comprising a ferrocene compound or its derivatives and an organic carrier liquid in which the ferrocene or its derivatives is soluble, has a high flash point and is an injectable liquid at operating temperatures wherein the quantity of air introduced to the furnace is reduced to low NO.sub.x emissions with minimal increase in soot emissions.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: December 25, 1990
    Assignee: Velino Ventures Inc.
    Inventor: David H. Farrar
  • Engine cleaning additives for diesel fuel
    Patent number: 4908045
    Abstract: A composition and method for reducing particulate emissions from a diesel engine without measurably increasing NO.sub.x emissions from the diesel engine comprises:(i) burning in the diesel engine in excess air a fuel oil containing 0.01 ppm to 1 ppm of iron in a compound selected from the group consisting of ferrocene and its derivatives represented by the formula: ##STR1## wherein each of R and R', independent of the other is hydrogen, alkyl, cycloalkyl, aryl and heterocyclic.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: March 13, 1990
    Assignee: Velino Ventures, Inc.
    Inventor: David H. Farrar