Patents Represented by Attorney, Agent or Law Firm J. Rodgers Lunsford III
  • Patent number: 5571855
    Abstract: Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated.In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: November 5, 1996
    Assignee: Kerr-McGee Corporation
    Inventors: Bruce R. Palmer, James W. Kauffman, Penelope Stamatakis
  • Patent number: 5567754
    Abstract: Thermoplastic concentrates comprising inorganic pigments, such as titanium dioxide, treated with a partial ester polyol and unsaturated monocarboxylic acid treating agent, of the formula R(OH).sub.x COOR', wherein R is an alkyl or aryl radical containing from about 2 to about 20 carbon atoms, R' is an unsaturated alkyl radical containing from about 6 to about 20 carbon atoms, and x is a number from about 2 to about 6, are disclosed. Such treatment improves the dispersibility of the pigments in thermoplastic resins. The treatment also enables the production of thermoplastic concentrates comprising a high percentage of treated inorganic pigment dispersed in a thermoplastic resin.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: October 22, 1996
    Assignee: Kerr-McGee Corporation
    Inventor: Rodney D. Stramel
  • Patent number: 5510561
    Abstract: A discrete catalyst and processes for the alkylation of isoalkanes with alkenes under homogenous fluid conditions. The catalyst is formed by contacting, under fluid conditions, a homogenous fluid containing a paraffin hydrocarbon having from 4 to 12 carbon atoms with a Lewis acid/protic Bronsted acid pair to produce a discrete catalytic complex that is soluble in the fluid. The discrete catalyst is the reaction product of the acid pair and alkanes and includes hydrocarbon ligands of limited chain length rendering it soluble in the fluid. The catalyst is active for the alkylation of isoalkanes, under homogenous fluid conditions.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: April 23, 1996
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Larry G. Sherman, William A. Yuill
  • Patent number: 5507439
    Abstract: A method for producing a milled powder including imparting an electrostatic charge to the starting powder and milling the electrostatically charged starting powder is provided.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: April 16, 1996
    Assignee: Kerr-McGee Chemical Corporation
    Inventor: Phillip M. Story
  • Patent number: 5494212
    Abstract: A rail-tie fastening assembly for fastening a rail to a concrete tie comprising a rail seat assembly and a rail anchor. The rail seat assembly includes a rail seat basin and a rail seat wherein the rail seat is disposed in the rail seat basin and bonded thereto with an elastomeric material having a void formed therein between the bottom of the rail seat and the bottom of the rail seat basin so as to produce a shear spring which transfers applied vertical load from the rail to the tie. The rail seat assembly is embedded in the tie and the rail anchor is adapted to engage a portion of the rail and to interlock with the rail seat assembly so as to cooperate with the rail seat assembly to fasten the rail to the tie.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: February 27, 1996
    Assignee: Kerr-McGhee Chemical Corporation
    Inventor: S. Hudson Owen
  • Patent number: 4678702
    Abstract: A rigid protective laminate is formed of at least nine layers of Kevlar fabric bonded together by internal layers of Surlyn which has been subjected to sufficient heat and pressure to cause the Surlyn to flow into and encapsulate the yarn of the Kevlar fabric. External Surlyn layers on the sides and edges protect the outermost fabric layers from moisture and provide a smooth outer surface.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: July 7, 1987
    Assignee: Petro Products, Inc.
    Inventors: Robert L. Lancaster, Raymond E. Shaw
  • Patent number: 4676979
    Abstract: There is disclosed a method of protecting animals including humans against ionizing radiation by injecting the animals with a polymer having the approximate formula H(OCH.sub.2 CH.sub.2).sub.n OH, where n varies between 4 and 13. Particularly, it is found that polyethylene glycol (molecular weight between 200 and 600), polyethyleneglycolmonoethylether (molecular weight between 200 and 600), and polyvinylpyrrolidone (molecular weight up to 10,000) when injected into standard experimental animals, such as mice, protects them from the lethal effect of ionizing radiation.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: June 30, 1987
    Assignee: Eastern Virginia Medical Authority/Med. Ctr. Hosp.
    Inventors: Karl A. Schellenberg, James Shaeffer
  • Patent number: 4640651
    Abstract: A method for machining a thin workpiece to equalize machining induced stresses within the workpiece. The method produces a thin workpiece on which the machining lines intersect on the workpiece's machined surface. The method includes passing the workpiece under a fly cutter while at the same time rotating the workpiece.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: February 3, 1987
    Assignee: Substrate Systems, Inc.
    Inventor: Robert C. Runyon
  • Patent number: 4625753
    Abstract: A cryogenic liquid storage tank has an automatic pressure relief means which vents vapor while the tank is being filled so that the tank may be completely filled. The pressure relief means includes a float which, when the cryogenic tank is filled, automatically closes the pressure relief means. In an alternative embodiment, the pressure relief means is combined with an eductor attached to the tank's inlet. The eductor entrains and condenses vapor within the tank to minimize the amount of vapor vented by the pressure relief means.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: December 2, 1986
    Inventor: Keith W. Gustafson
  • Patent number: 4622836
    Abstract: A golf club loft and lie calibration machine has a fixture with a cavity that exactly matches the back of the golf club head for clamping the golf club head. A pin with a tapered end is inserted into the bore of the golf club's hosel. The angular displacement of the pin is mechanically converted into two components of angular displacement which components are then converted to electrical signals. The electrical signals are processed to determine the deviations from the specified loft and lie angles. The deviation is used to activate hydraulic rams distributed around the fixture to bend the golf club head's hosel and bring the golf club back to specification.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: November 18, 1986
    Assignee: MacGregor Golf Company
    Inventors: Dabbs C. Long, Gerald R. Anderson, Dale L. Linman, Thomas M. Moore
  • Patent number: 4608831
    Abstract: There is disclosed a self-pressurizing container for liquid helium which comprises an inner and outer vessel with an insulating space between. A heating element is disposed within an insulating barrier tube which extends between the liquid and vapor phases of the helium. The barrier tube insures that the liquid helium is heated and vaporized in the barrier tube without substantially heating the bulk of the liquid helium. The heating element in the preferred embodiment includes a vapor heat exchanger.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: September 2, 1986
    Inventor: Keith W. Gustafson
  • Patent number: 4600902
    Abstract: There is disclosed an analog signal processing circuit (compandor) and a method for overcoming noise in a transmission medium by means of a composite compressor and composite expander. The composite compressor splits the frequency spectrum of the analog signal into two or more frequency components, compresses all of the frequency components in parallel with the same 3:1 integer compression ratio, combines the compressed frequency components to produce a compressed analog signal, and transmits the compressed analog signal on the transmission medium.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: July 15, 1986
    Assignee: Wegener Communications, Inc.
    Inventor: Stephen H. Lafferty
  • Patent number: 4578276
    Abstract: A process for making a stabilized frozen whipped cream. Heavy whipping cream is whipped into whipped cream having stiff peaks, and a mixture of sweeteners and dry stabilizers is incorporated into the whipped cream. A warm gelatin solution is then blended with the whipped cream and mixture of sweeteners and dry stabilizers to form a homogeneous mass which is then frozen. The dry stabilizers are microcrystalline cellulose and sodium carboxymethylcellulose which with the gelatin give integrity to the air cell structure so that on thawing the frozen whipped cream retains its volume and does not experience syneresis.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: March 25, 1986
    Inventor: Robert G. Morley
  • Patent number: 4568395
    Abstract: An improved activator system for a precleaner is formulated by combining either a carboxyl substituted pyridine or a carboxylamine substituted pyridine with a polyprotic acid. The preferred precleaner activator system combines nicotinic acid and phosphoric acid. An improved activator system for a soldering flux is formulated by combining an alkylamine with either a hydroxyl containing organic acid or a small molecular weight keto acid. The preferred flux activator system combines tetrahydrofurfurylamine and hydroxyacetic acid. A method for preparing and soldering metal surface using the precleaner and flux is carried out at relatively low temperatures and relatively short times.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: February 4, 1986
    Inventor: Abdol R. Nabhani
  • Patent number: 4511886
    Abstract: A security and surveillance system having a central monitoring station connected to a plurality of remote installations or subscribers by a transmission medium having a finite bandwidth. Each remote installation includes a plurality of surveillance equipment, including video, audio, and alarm signals, associated with a plurality of monitored locations. The security information collected by the surveillance equipment is serially sampled by a switcher which provides that information to an interface unit transmitter. The interface unit transmitter compresses the video information and decodes the alarm information and then using a key frequency and single side band modulation techniques modulates and sub-channelizes the processed security information into a frequency spectrum. The sub-channelized security information is translated in frequency and transmitted on the transmission medium.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: April 16, 1985
    Assignee: Micron International, Ltd.
    Inventor: Michael J. Rodriguez
  • Patent number: 4510710
    Abstract: The disclosed fishing lure is a surface-type lure for attracting large mouth bass. The lure includes a shank with a barbed hook at one end and an eyelet at the other. A body with a skirt is attached adjacent the hook and two rearwardly extending arms are attached at the eyelet. Each arm has a propeller rotatably mounted on it, and a flotation device is attached to the rear end of each arm. The propellers and flotation devices bring the lure to the surface quickly during retrieval and allow a slow rate of retrieval.
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: April 16, 1985
    Assignee: Thomas J. Hanna
    Inventors: Thomas J. Hanna, Bill C. Logsdon, Elmer E. Meredith
  • Patent number: 4507931
    Abstract: There is disclosed a refrigeration system for a soft drink plant which refrigeration system provides cooling for cooler/carbonators used in the manufacturing of soft drink and which utilizes any access compressor capacity to precool water being used in the manufacture of soft drinks while assuring priority and adequate cooling capacity for the cooler/carbonators.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: April 2, 1985
    Assignee: Barrow Systems, Inc.
    Inventors: Billy E. Barrow, William E. Barrow, Michael A. Barrow
  • Patent number: 4507287
    Abstract: There is disclosed a preparation and method of treating Acne vulgaris which comprises topical application of a preparation comprising an antibacterial agent dissolved in DMSO. The antibacterial agents include ara-A, acyclovir, ribavirin, amikacin, cefamandole, cefoxitin, erythromycin, tetracycline, tobramycin, vancomycin, lincomycin, and carbenicillin.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: March 26, 1985
    Inventor: Glen J. Dixon
  • Patent number: 4478607
    Abstract: There is disclosed a device for atomizing and dispersing fuel in a fuel/air mixture of the propeller type for an internal combustion engine. The housing of the device comprises two concentric barrels, each having a symmetrical bearing support. The barrels are press fit together to assure bearing alignment for the propeller. A downstream screen protects the engine from debris and further atomizes the fuel without substantially restricting fuel/air flow.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: October 23, 1984
    Assignee: Turra International, Inc.
    Inventor: Timothy L. Capps
  • Patent number: D281557
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: December 3, 1985
    Inventor: C. Lee Payne, Jr.