Patents by Inventor Daniel E. Coker

Daniel E. Coker 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).

  • Patent number: 7736525
    Abstract: A method of making an alkoxylated polyethyleneimine (APEI) product having reduced discoloration includes treating a composition including a component selected from the group of polyethyleneimine (PEI), APEI intermediate, and combinations thereof that is used to make the APEI product. The method of treating the composition includes heating a composition that includes an adduct of a conjugate base and PEI, water, and the component at a temperature of from 158 to 338° F. for a period of at least three hours in the absence of additional water in order to substantially decompose the adduct in the composition. The aqueous solutions of APEI product thus made have Gardner color values of less than 6.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: June 15, 2010
    Assignee: BASF Corporation
    Inventors: Chacko Thankachan, Klaus J. Friedrich, Daniel E. Coker
  • Publication number: 20090069501
    Abstract: A method of making an alkoxylated polyethyleneimine (APEI) product having reduced discoloration includes treating a composition including a component selected from the group of polyethyleneimine (PEI), APEI intermediate, and combinations thereof that is used to make the APEI product. The method of treating the composition includes heating a composition that includes an adduct of a conjugate base and PEI, water, and the component at a temperature of from 158 to 338° F. for a period of at least three hours in the absence of additional water in order to substantially decompose the adduct in the composition. The aqueous solutions of APEI product thus made have Gardner color values of less than 6.
    Type: Application
    Filed: February 7, 2006
    Publication date: March 12, 2009
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Chacko Thankachan, Klaus J. Friedrich, Daniel E. Coker
  • Patent number: 5673733
    Abstract: A removal and refill apparatus for use in removing and/or refilling coolant in an automotive cooling system. The automotive cooling system typically includes a radiator, overflow bottle, engine, water pump, and heater core elements. A method for utilizing the coolant removal and refill apparatus utilizing vacuum and pressure is described for use with the removal and refill apparatus.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 7, 1997
    Assignee: Ashland, Inc.
    Inventors: David E. Turcotte, John J. Conville, Stephen M. Zeld, Daniel E. Coker, James T. Lyon
  • Patent number: 5649574
    Abstract: A removal and refill apparatus for use in removing and/or refilling coolant in an automotive cooling system. The automotive cooling system typically includes a radiator, overflow bottle, engine, water pump, and heater core elements. A method for utilizing the coolant removal and refill apparatus utilizing vacuum and pressure is described for use with the removal and refill apparatus.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: July 22, 1997
    Assignee: Ashland, Inc.
    Inventors: David E. Turcotte, John J. Conville, Stephen M. Zeld, Daniel E. Coker, James T. Lyon
  • Patent number: 5511590
    Abstract: In an automotive cooling system made up of a radiator, overflow bottle, engine and heater core members, a method of removing spent antifreeze therefrom involves applying air pressure at the highest vertical point of the cooling system members, and draining the antifreeze via the lowest vertical point thereof. A method of refill via the radiator or pressurized overflow bottle involves utilization of a refill element with vacuum and coolant prongs. Simultaneous vacuum and refill of coolant is achieved with the refill element.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: April 30, 1996
    Assignee: BASF Corporation
    Inventors: David E. Turcotte, John J. Conville, Stephen M. Zeld, Daniel E. Coker, James T. Lyon
  • Patent number: 5071582
    Abstract: Cooling system cleaning solutions containing an EDTA salt, a polyhydroxy mono- or dicarboxylic sugar acid, and a soluble nitrate salt are effective in removing scale, corrosion, and solder bloom from cooling systems.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: December 10, 1991
    Assignee: BASF Corporation
    Inventors: John J. Conville, James T. Lyon, David E. Turcotte, Stanley T. Hirozawa, Shrikant V. Desai, Daniel E. Coker
  • Patent number: 5062987
    Abstract: Cooling system cleaning solutions containing an EDTA salt, sorbitol, and a soluble nitrate salt are effective in removing scale, corrosion, and solder bloom from cooling systems without blackening aluminum, and can be formulated into concentrates having enhanced storage stability.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: November 5, 1991
    Assignee: BASF Corporation
    Inventors: David E. Turcotte, Daniel E. Coker
  • Patent number: 4626366
    Abstract: The invention relates to functional fluid concentrates and functional fluids which can be prepared by mixing the concentrates with water. The functional fluids can be used in hydraulic systems or as metalworking compositions to cool and lubricate surfaces which are in frictional contact during operations such as the turning, cutting, peeling, or grinding of metals.The functional fluid concentrate comprises:(a) a cloud point raising metal dialkyldithiophosphate additive having the following structural formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are individually linear or branched alkyl, alkenyl, aryl, arylalkyl and alkylaryl groups having from 1 to 24 carbon atoms; and M is selected from the group consisting of Zn, Sb, Sn, Mg, and Mn; preferably Zn or Sb;(b) a polyether nonionic surfactant; and(c) an associative polyether thickener.Preferably the concentrate also contains a linear or branched alkanolamine having 2 to 10 carbon atoms.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: December 2, 1986
    Assignee: BASF Corporation
    Inventors: Mark A. Frentrup, Stanley T. Hirozawa, James E. Carson, Daniel E. Coker
  • Patent number: 4588511
    Abstract: The invention relates to functional fluid concentrates and functional fluids which can be prepared by mixing the concentrates with water. The functional fluid concentrate comprises certain basic zinc salts as cloud point raising additives; a polyether nonionic surfactant; and an associative polyether thickener.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: May 13, 1986
    Assignee: BASF Wyandotte Corporation
    Inventors: Mark A. Frentrup, Stanley T. Hirozawa, James E. Carson, Daniel E. Coker