Patents Represented by Attorney Robert L. Graham
  • Patent number: 6212991
    Abstract: The invention provides an apparatus for reducing recoil on a firearm or gun and to increase rate of firing. The invention uses a dual mass system to dynamically balance the gun wherein some of the energy of firing is absorbed within springs and thereby reduces the recoil force imparted to the gun user. The apparatus also comprises an ejector mechanism for ejecting a spent round and reloading a new round from the gun magazine with increased speed over conventional designs. The apparatus is applicable to automatic and semiautomatic handguns as well as rifles and machine guns.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: April 10, 2001
    Inventor: Taylor Frazier, III
  • Patent number: 5797456
    Abstract: Subterranean oil-bearing formations are treated with aqueous acid solutions which include an effective amount of an ester or salts of sulfonated fatty acids, which exhibits both antisludge and demulsification properties.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: August 25, 1998
    Assignee: Nalco/Exxon Energy Chemicals,L.P.
    Inventor: Anita R. Mokadam
  • 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
  • Patent number: 5609794
    Abstract: A water-in-oil demulsifier is prepared by (a) reacting a high molecular weight polyalkylene glycol (PAG) with ethylene oxide (EO) to form a PAG/EO adduct, (b) esterifying the PAG/EO adduct with a diacid anhydride to form a diester, (c) reacting the diester with a vinyl monomer, and (d) additional esterification of the step (c) product with a polyhydric material.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: March 11, 1997
    Assignee: Exxon Chemical Patents, Inc.
    Inventor: Grahame N. Taylor
  • Patent number: 5509944
    Abstract: Gasoline and gasoline mixtures containing unsaturated hydrocarbons are stabilized by the addition thereto of an effective amount of (a) a primary antioxidant of a phenylenediamine, a hindered monophenol, or mixtures thereof, and (b) dimethyl sulfoxide.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: April 23, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Ramray A. Venkatadri, R. G. Presenti
  • Patent number: 5501872
    Abstract: A six-sided fibrous batting is coated with a nonwoven polymeric material by passing the batt sequentially through three coating stations. Four sides of the batt are coated in the first two stations and, after the batt is turned, the final two sides are coated, completely encapsulating the batt in fibrous nonwoven coating.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: March 26, 1996
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Martin A. Allen, John T. Fetcko
  • Patent number: 5462128
    Abstract: Disclosed is a cutter bit (1) for use in drilling operations comprising a body (10) having a top portion (11) and a bottom portion (12), the bottom portion (12) being provided with cutting elements for cutting a formation to which the cutting elements is exposed. Within an outer circumference (13) of the bottom portion (12) of the body (10) there is provided an opening (14) to a first passage (15) through the body (10) to communicate a first zone (20) of a hole located below the bottom portion (12) of the body (10) with a second zone of the hole located above the bottom portion (12) of the body (10).
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: October 31, 1995
    Inventor: Clifford R. Gray
  • Patent number: 5453129
    Abstract: A method and apparatus for oil cleanup or protection includes meltblowing equipment mounted on a vessel or vehicle for the generation and deposition of an oil absorbent web at the site of the spill.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: September 26, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Martin A. Allen, John T. Fetcko
  • Patent number: 5452076
    Abstract: The present invention relates to a fluid detection system which can be adapted for use in applications including liquid-level detection, pipeflow monitoring, and interstitial leakage in double-walled containers. The system operates on principles of optics and provides the capability of remotely differentiating between fluids having different refractive indices including liquids and vapors. The present detector uses a unique light pulsation technique which increases permissible operating ranges over existing optical detection systems.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: September 19, 1995
    Assignee: Optiguard, Inc.
    Inventors: Milton D. Schopper, James L. Taylor, III, Paul R. Bennett, Jr.
  • Patent number: 5332842
    Abstract: Dialkylphenylenediamines are used to inhibit oxidation and polymerization of furfural or furfural derivatives. The preferred use of the inhibitor is in the solvent refining of lubricating oils using furfural to extract constituents from the lubricating oils.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: July 26, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Ghazi Dickakian
  • Patent number: 5217074
    Abstract: Granules containing a gel breaker are used in a well treatment involving the use of a gelled fluid. The granules exhibit delayed release of the breaker to permit placement of the gelled fluid into the subterranean formation.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: June 8, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Lee A. McDougall, Fati Malekahmadi, Dennis Williams
  • Patent number: 5130034
    Abstract: A corrosion inhibitor for an acid well treating composition includes first metal ions including Sb, Cu, and Bi complexed with a quaternary ammonium compound and second metal ions complexed with a quaternary ammonium compound. The complexed compounds may be prepared and introduced into the acid or the first metal ions may be introduced directly into the acid system.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: July 14, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Dennis A. Williams, Phyllis K. Holifield, James R. Looney, Lee A. McDougall
  • Patent number: 5053066
    Abstract: A filter useful as a cigarette smoke filter is made by convergingly passing a flat restrained meltblown web successively through a heated zone and a trumpet to form a roving. The roving may be processed to make filters. The process results in stretch orientation of longitudinal fibers and bulking due to cross fibers. Primary and secondary pleats formed in the web are bundled into a cylindrical roving. The pleats add bulking to the web and provide fluid permeability through the filter.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: October 1, 1991
    Inventor: Charles B . Hassenboehler
  • Patent number: 5044439
    Abstract: A geothermal water well is treated with an effective amount of a scale inhibitor formulation containing a Na acrylate/acrylamide copolymer to inhibit the buildings of CaCO.sub.3 scale therein.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: September 3, 1991
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Lawrence M. Cenegy, Darrel F. Griffith, George W. M. Hobbs
  • Patent number: 4938925
    Abstract: A method of inhibiting corrosion of metal equipment in wells comprises contacting the metal surfaces with an inhibiting amount of a corrosion inhibitor which is the reaction product of a compound containing a carbonyl group (e.g. aldehydes), an amine, and a thiocyanate.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: July 3, 1990
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Philip R. Petersen, Larry G. Coker, Daniel S. Sullivan, III
  • Patent number: 4906716
    Abstract: Hydrophobic water-insoluble monomers, such as alkyl acrylamides, which are solid at room temperature may be sufficiently dissolved in concentrated acrylamide or methacrylamide monomer solutions, in the absence of cosolvents, to allow copolymerization to occur without substantial phase separation. The hydrophobic monomer is added to the acrylamide monomer solution and heated, with agitation, to above the melting point of the hydrophobic monomer. Thereafter the temperature must be maintained at no lower than about C. below the melting point.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: March 6, 1990
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Henry W. Yang, Thomas J. Pacansky
  • Patent number: 4904174
    Abstract: Meltblowing apparatus includes electrodes spaced from the meltblowing die discharge and protruding grounded emitters positioned proximate the die discharge. The preferred emitters are in the form of pointed pins spaced along and flanking the die discharge.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: February 27, 1990
    Inventors: Peter Moosmayer, Jean-Pierre Budliger, Erwin Zurcher, Larry C. Wadsworth
  • Patent number: 4871022
    Abstract: A method of removing polymeric material from injection and producing wells in which an aqueous medium containing, chlorine dioxide or sodium chlorite is introduced into the well and maintained in contact with the polymeric material for a period of time sufficient to degrade the polymeric material to a desired degree and allow enhanced injectivity of polymer flooding medium into the injection well or enhanced production from a producing well.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: October 3, 1989
    Assignee: Exxon Chemicals Patents, Inc.
    Inventor: Mark S. McGlathery
  • Patent number: 4508859
    Abstract: Rotational mold grade resin is made by subjecting polyolefin to the following process: (1) polyolefin granules are blended with additives to form a masterblend; (2) the masterblend is intensively mixed with additional resin granules to shape the granules, reduce particle size and disperse additives; (3) the intermixed material is cooled and (4) large particles are removed and recycled.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: April 2, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventors: Mike E. Muhle, Richard J. Stolz, Cecil W. Wright
  • Patent number: 4505201
    Abstract: An impact resistant bag structure is made of a continuously woven fabric wherein the circumferential yarns and longitudinal yarns have a toughness ratio of between about 4.0/1.0 and 1.67/1.0. The bag structure is particularly useful in explosive bag applications.
    Type: Grant
    Filed: January 19, 1984
    Date of Patent: March 19, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventor: Wolfgang P. Abele