Patents by Inventor Lawrence J. Evers

Lawrence J. Evers 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).

  • Waste pond volume management
    Patent number: 9975786
    Abstract: A method of improving the evaporation from surface bodies of water which comprises artificially inducing air flow over a body of water using air jets at an air flow rate of at least 10 m/second while the water partial pressure of air at the surface temperature of the body of water (Pbs) is greater than the water partial pressure of the ambient air at the surface temperature of the body of water (Pas). The rate of evaporation can be materially enhanced by the transfer of geothermal heat from the lower region of the body of water to the surface region by means of a heat exchanger or a heat pipe.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: May 22, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Mustafa Al-Sabawi, Gordon Bryce McGarvey, Robert James Falkiner, Robert N. McLean, Lawrence J. Evers
  • WASTE POND VOLUME MANAGEMENT
    Publication number: 20160362306
    Abstract: A method of improving the evaporation from surface bodies of water which comprises artificially inducing air flow over a body of water using air jets at an air flow rate of at least 10 m/second while the water partial pressure of air at the surface temperature of the body of water (Pbs) is greater than the water partial pressure of the ambient air at the surface temperature of the body of water (Pas). The rate of evaporation can be materially enhanced by the transfer of geothermal heat from the lower region of the body of water to the surface region by means of a heat exchanger or a heat pipe.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 15, 2016
    Inventors: Mustafa AL-SABAWI, Gordon Bryce McGARVEY, Robert James FALKINER, Robert N. McLEAN, Lawrence J. EVERS
  • Process for increasing deasphalted oil production from upgraded residua
    Patent number: 4673485
    Abstract: A process in fuels production for increasing the yield of deasphalted oil production from upgraded residua and improving deasphalter operability involving mixing the upgraded residua with an aromatics solubilizing aid to prevent the formation of an immiscible third phase during deasphalting.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: June 16, 1987
    Assignee: Exxon Research and Engineering Company
    Inventors: Duncan J. Bristow, Biddanda U. Achia, Lawrence J. Evers
  • Process for increasing Bright Stock raffinate oil production
    Patent number: 4592832
    Abstract: A process for increasing the production of Bright Stock oil in a lube oil process scheme. Aromatic extract oil, after being separated from the extraction solvent, is recycled back to the deasphalter unit and combined with a vacuum residuum in 10-20 LV %, based on the total deasphalter feed, prior to deasphalting. After deasphalting and aromatics extraction the absolute yield of raffinate is increased.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: June 3, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventors: Duncan J. Bristow, Biddanda U. Achia, Lawrence J. Evers