Patents by Inventor David L. Davies

David L. Davies 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).

  • Publication number: 20230323220
    Abstract: The invention relates to various nonlimiting embodiments that include methods, apparatuses or systems for processing natural gas comprising a heavies removal column processing natural gas and light oil reflux. The overhead stream goes to heavies treated natural gas storage. The heavies removal column reboiler bottoms stream product is input to a debutanizer column. The debutanizer column overhead lights are input to a flash drum where the bottoms is pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the debutanizer reboiler bottoms product is stored as stabilized condensate. Alternatively, debutanizer column overhead lights are sent to heavies treated gas storage and the bottoms stream product goes to a depentanizer column, the overhead lights are pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the depentanizer reboiler bottoms product is stabilized condensate.
    Type: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Inventors: Paul R. DAVIES, Michael J. CALDERON, Dale L. EMBRY, David W. LARKIN, Qi MA
  • Patent number: 11713423
    Abstract: The invention relates to various nonlimiting embodiments that include methods, apparatuses or systems for processing natural gas comprising a heavies removal column processing natural gas and light oil reflux. The overhead stream goes to heavies treated natural gas storage. The heavies removal column reboiler bottoms stream product is input to a debutanizer column. The debutanizer column overhead lights are input to a flash drum where the bottoms is pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the debutanizer reboiler bottoms product is stored as stabilized condensate. Alternatively, debutanizer column overhead lights are sent to heavies treated gas storage and the bottoms stream product goes to a depentanizer column, the overhead lights are pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the depentanizer reboiler bottoms product is stabilized condensate.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: August 1, 2023
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Paul R. Davies, Michael J. Calderon, Dale L. Embry, David W. Larkin, Qi Ma
  • Patent number: 7196221
    Abstract: Ionic compounds having a freezing point of no more than 50° C., formed by the reaction of at least one amine salt of the formula R1R2R3R4N+X? (I) with at least one hydrated salt, which is a chloride, nitrate, sulphate or acetate of Li, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb, Bi, La or Ce; wherein R1, R2 and R3 are each independently a C1 to C5 alkyl or a C6 to C10 cycloalkyl group, or wherein R2 and R3 taken together represent a C4 to C10 alkylene group, thereby forming with the N atom of formula (I) a 5 to 11 membered heterocyclic ring, and wherein R4 is hydrogen, or phenyl, or C1 to C12 alkyl or cycloalkyl group, optionally substituted with at least one group selected from OH, Cl, Br, F, I, phenyl, NH2, CN, NO2, COOR5, CHO, COR5 and OR5, wherein R5 is a C1 to C10 alkyl or cycloalkyl group, and X? is an anion capable of being complexed by the said hydrated salt.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: March 27, 2007
    Assignee: Scionix Limited
    Inventors: Andrew P. Abbott, David L. Davies, Glen Capper, Raymond K. Rasheed, Vasuki Tambyrajah
  • Patent number: 7183433
    Abstract: Ionic compounds with a freezing point of up to 100° C. are formed by the reaction of an one amine salt of formula (I) R1R2R3R4N+X?, such as choline chloride with an organic compound (II) capable of forming a hydrogen bond with X; such as urea, wherein the molar ration of I to II is from 1:1.5 to 1:2.5. R1, R2, R3 and R4 may be H, optionally substituted C1 to C5 alkyl, optionally substituted C6 to C10 cycloalkyl, optionally substituted C6 to C12 aryl, optionally substituted C7 to C12 alkaryl, or R1 and R2 taken together may represent a C4 to C10 optionally substituted alkylene group, thereby forming with the N atom of formula I a 5 to 11-membered heterocyclic ring and all of R1, R2, R3 and R4 are not identical, X? may be NO3?, F, Cl?, Br?, I?, BF4?, ClO4?, CN?, SO3CF3?, or COOCF3?. The ionic compounds are useful as solvents, and electrolytes for example in electroplating, electrowinning, and electropolishing, and as catalysts.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: February 27, 2007
    Assignee: Scionix Limited
    Inventors: Andrew P. Abbott, David L. Davies, Glen Capper, Raymond K. Rasheed, Vasuki Tambyrajah
  • Publication number: 20040097755
    Abstract: Ionic compounds with a freezing point of up to 100° C. are formed by the reaction of an one amine salt of formula (I) R1R2R3R4N+X−, such as choline chloride with an organic compound (II) capable of forming a hydrogen bond with X; such as urea, wherein the molar ration of I to II is from 1:1.5 to 1:2.5. R1, R2, R3 and R4 may be H, optionally substituted C1 to C5 alkyl, optionally substituted C6 to C10 cycloalkyl, optionally substituted C6 to C12 aryl, optionally substituted C7 to C12 alkaryl, or R1 and R2 taken together may represent a C4 to C10 optionally substituted alkylene group, thereby forming with the N atom of formula I a 5 to 11-membered heterocyclic ring and all of R1, R2, R3 and R4 are not identical, X− may be NO3−, F, Cl−, Br−, I−, BF4−, ClO4−, CN−, SO3CF3−, or COOCF3−. The ionic compounds are useful as solvents, and electrolytes for example in electroplating, electrowinning, and electropolishing, and as catalysts.
    Type: Application
    Filed: July 7, 2003
    Publication date: May 20, 2004
    Inventors: Andrew P. Abbott, David L. Davies, Glen Capper, Raymond K. Rasheed, Vasuki Tambyrajah
  • Publication number: 20040054231
    Abstract: Ionic compounds having a freezing point of no more than 50° C., formed by the reaction of at least one amine salt of the formula R1R2R3R4N+X− (I) with at least one hydrated salt, which is a chloride, nitrate, sulphate or acetate of Li, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb, Bi, La or Ce; wherein R1, R2 and R3 are each independently a C1 to C5 alkyl or a C6 to C10 cycloalkyl group, or wherein R2 and R3 taken together represent a C4 to C10 alkylene group, thereby forming with the N atom of formula (I) a 5 to 11 membered heterocyclic ring, and wherein R4 is hydrogen, or phenyl, or C1 to C12 alkyl or cycloalkyl group, optionally substituted with at least one group selected from OH, Cl, Br, F, I, phenyl, NH2, CN, NO2, COOR5, CHO, COR5 and OR5, wherein R5 is a C1 to C10 alkyl or cycloalkyl group, and X− is an anion capable of being complexed by the said hydrated salt.
    Type: Application
    Filed: August 11, 2003
    Publication date: March 18, 2004
    Inventors: Andrew Abbott, David L Davies, Glen Capper, Raymond K Rasheed, Vasuki Tambyrajah
  • Patent number: 6573405
    Abstract: An ionic liquid having a melting point of no more than 60° C., formed by the reaction of a quaternary ammonium compound of the formula: R1R2R3R4N+X−  (I) or a mixture of two or more therof; with a halide of zinc, tin or iron, or a mixture of two or more thereof.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: June 3, 2003
    Assignee: Scionix Limited
    Inventors: Andrew P. Abbott, David L. Davies
  • Patent number: 4593470
    Abstract: A three dimensional graphics tablet for determining the three dimensional coordinates of points on an object placed on a supporting plane. The apparatus includes an articulated arm having at least two link elements connecting a contacting tip element to the support for rotational movement about a plurality of mutually angulated axes. By means of the arm articulation, the contacting tip element can be moved to arbitrary locations within a defined volume. Potentiometers are provided for measuring each of the angles of rotation about the mutually angulated axes. These potentiometers generate signals which collectively determine the coordinates of the location of the tip element. Embodiments are disclosed having three and four degrees of freedom and a portable embodiment including a clamp or bracket are disclosed.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: June 10, 1986
    Assignee: Micro Control Systems, Inc.
    Inventor: David L. Davies
  • Patent number: 4554981
    Abstract: A tubing pressurized firing apparatus is shown for use with a tubing conveyed perforating gun of the type used to perforate a cased well bore. The firing apparatus has a tubular body with an upper end for connection in the well tubing string and with a lower end for connection to a well perforating gun. An inner mandrel is slidably mounted within the tubular body and has a ball seat formed in the interior bore thereof for receiving a ball dropped through the well tubing string. The ball and ball seat together form a pressure tight seal whereby tubing pressure in the well tubing string acts on the inner mandrel to slide the mandrel downwardly within the tubular body. A cocking mechanism located below the inner mandrel within the body includes a lockout member which is initially positioned between a detonating pin and a percussion detonator.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: November 26, 1985
    Assignee: Hughes Tool Company
    Inventor: David L. Davies
  • Patent number: 4477973
    Abstract: A three dimensional graphics tablet for determining the three dimensional coordinates of points on an object placed on a supporting plane. The apparatus includes an articulated arm having at least two link elements connecting a contacting tip element to the support for rotational movement about a plurality of mutually angulated axes. By means of the arm articulation, the contacting tip element can be moved to arbitrary locations within a defined volume. Potentiometers are provided for measuring each of the angles of rotation about the mutually angulated axes. These potentiometers generate signals which collectively determine the coordinates of the location of the tip element. Embodiments are disclosed having three and four degrees of freedom.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: October 23, 1984
    Assignee: Micro Control Systems, Inc.
    Inventor: David L. Davies
  • Patent number: 4440794
    Abstract: An instant rice pudding mix which comprises a mixture of a powder comprising 15 to 35% by weight of a finely divided sugar, 25 to 40% by weight of a starch, 5 to 20% by weight of a finely divided fat; 5 to 25% by weight of a dried skim-milk powder; up to 3% by weight of an emulsifier and 0 to 4% by weight of an edible gum; and granules formed by the extrusion of a dough formed from 87 to 100% by weight of rice flour, up to 4.0% by weight of a starch-complexing agent, up to 5% by weight of an aerating agent and up to 4.0% of dried skim milk powder and/or dried whey powder mixed with a proportion of water sufficient to produce an extrudable dough. The pudding mix of the invention may conveniently be made up by the addition of hot or boiling water to produce a product having the texture of a traditional rice pudding. The pudding mix of the invention may be packed in pouches, envelopes or other protective cartons which afford moisture-barrier features.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: April 3, 1984
    Assignee: General Foods Corporation
    Inventor: David L. Davies
  • Patent number: 4203261
    Abstract: An abrasive belt apparatus for machining a workpiece to produce a preselected contour and finish comprising means for positioning the workpiece along a predetermined axis during machining operations. An endless abrasive belt is disposed in a plane substantially aligned with the axis of the workpiece and driven by suitable drive means. The belt is trained about contoured contact means disposed proximate a section of the workpiece and movable along an axis substantially perpendicular to the axis of the workpiece to bring the abrasive surface of the belt into contact with the workpiece for removing stock to produce a desired contour and finish upon actuation of the belt. The direction in which the belt is driven at its location of contact with the workpiece produces a finish having marks which run substantially longitudinally of the workpiece. Means are provided for selectively rotating the workpiece during machining operations to produce a workpiece having a substantially circular outline.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: May 20, 1980
    Assignee: Tasco, Inc.
    Inventor: David L. Davies
  • Patent number: 4144327
    Abstract: The present invention encompasses an antimicrobial composition comprising an extract of lytic enzymes from Physarum. These lytic enzymes are particularly effective antimycotic agents when used in conjunction with conventional antimycotic agents.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: March 13, 1979
    Assignee: G. D. Searle & Co.
    Inventors: David A. L. Davies, Anthony M. S. Pope
  • Patent number: D288815
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: March 17, 1987
    Assignee: Micro Control Systems, Inc.
    Inventor: David L. Davies