Patents by Inventor Allan R. Thomas

Allan R. Thomas 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 treating sour gas and liquid hydrocarbon
    Patent number: 5744024
    Abstract: Reaction of 1,3,5-tri-substituted-hexahydro-1,3,5-triazine is accelerated in H.sub.2 S scavenging by the addition of quaternary ammonium compound. The preferred hexahydro triazines are 1,3,5-tri-methyl-hexahydro-1,3,5-triazines and 1,3,5-tri-methoxypropyl-hexahydro-1,3,5-triazines. The blend of the hexahydro triazine and quaternary ammonium compounds can be used to treat sour gases and liquids (e.g. sour kerosene, crude oil, fuel oils, heating oils, distillate fuels, bunker fuel oil, and the like.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: April 28, 1998
    Assignee: Nalco/Exxon Energy Chemicals, L.P.
    Inventors: Daniel S. Sullivan, III, Allan R. Thomas, Juan M. Garcia, III, Paul Yon-Hin
  • Method of treating sour gas and liquid hydrocarbon
    Patent number: 5674377
    Abstract: Gaseous or liquid hydrocarbon is treated with a scavenging compound comprising an oil soluble 1,3,5-trihexahydro-1,3,5-tert.-butyltriazine. The compound is an effective nonregenerated scavenger for oil field produced fluids, particularly sour hydrocarbon liquids.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: October 7, 1997
    Assignee: Nalco/Exxon Energy Chemicals, L.P.
    Inventors: Daniel S. Sullivan, III, Allan R. Thomas, Mark A. Edwards, Grahame N. Taylor, Paul Yon-Hin, Juan M. Garcia, III
  • Belt winch mounting on vehicle rail
    Patent number: 4382736
    Abstract: A belt winch apparatus for holding a belt at the side of a load carrying trailer vehicle the apparatus having interlocking means so that the apparatus can be supported by interlocking between the tie rail and the outer side of the vehicle tray and hold the belt under tension holding the load while in the same position.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: May 10, 1983
    Inventor: Allan R. Thomas
  • Belt winch and attachment device
    Patent number: D262010
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: November 24, 1981
    Inventor: Allan R. Thomas