Patents Assigned to Kerr
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Patent number: 4286633Abstract: A squeeze bulb dropper assembly is combined with a child resistant closure to form an assembly which cannot be readily removed by younger children. The assembly provides a vapor proof and leakproof connection with the bottle. The preferred assembly employs a closure having an outer cap and an inner cap in which the inner cap rotates with the outer cap in an application direction, but remains stationary relative to a bottle to which it is engaged when the outer cap is rotated in a removal direction unless a simultaneous downward force is applied to the outer cap to intermesh cooperating members on the caps. The closure includes a dropper bulb disposed through the caps so that a resilient compressible flange on the bulb provides the spacing between the cooperating members of the caps unless a downward pressure on the outer cap compresses the flange.Type: GrantFiled: September 12, 1979Date of Patent: September 1, 1981Assignee: Kerr Glass Manufacturing CorporationInventor: James E. Herr
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Patent number: 4283371Abstract: A continuous process for recovering substantially pure aluminum chloride from chlorination products of aluminum ore. The chlorination products are contacted with a first selective solvent to dissolve a substantial portion of the aluminum chloride and some ferric chloride. The solvent is separated from the chlorides which then are treated to produce a ferric chloride-rich stream and an aluminum chloride-rich stream in which the aluminum chloride to ferric chloride ratio is higher than the ratio prior to solvent separation. The aluminum chloride-rich stream is contacted with a second solvent to dissolve any ferric chloride present and saturate the solution with aluminum chloride. Aluminum chloride in excess of that soluble in the second solvent separates as a substantially pure solid phase. The solution is separated from solid phase and recycled in process to recover additional aluminum chloride.Type: GrantFiled: January 28, 1980Date of Patent: August 11, 1981Assignee: Kerr-McGee CorporationInventor: Theodore A. Rado
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Patent number: 4283680Abstract: An electric sensing circuit, typically a metal detector includes a bridge including inductors. The out of balance condition of the bridge is stored on a capacitor and a balancing signal is fed to balance the bridge in dependence upon the stored value of the charge. The stored value of the charge is only updated in response to relatively slow changes in the out of balance condition of the bridge. Relatively rapid changes in the out of balance condition are used to provide an output signal for alarm or measuring purposes, and the arrangement is thereby so arranged that the balancing signal does not attempt to automatically balance out the output signal giving the alarm or measurement.Type: GrantFiled: February 26, 1979Date of Patent: August 11, 1981Assignee: Goring Kerr LimitedInventor: Bruce G. Kerr
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Patent number: 4279739Abstract: A process for separating a solvent from a bituminous material by pressure reduction and steam stripping without carry-over of entrained bituminous material. The fluid-like phase of bituminous material and solvent is reduced in pressure and introduced into a steam stripper. The solvent vaporizes upon pressure reduction and a mist of fine bituminous material particles forms and becomes dispersed in the vaporized solvent. The vaporized solvent and associated mist is separated from the bituminous material in the stripper and is withdrawn from the steam stripper and introduced into a condenser. The solvent and steam from the stripper condense, a substantial portion of the mist of entrained particles solidifies and an emulsion of water and fluid-like bituminous material from the mist forms. The liquid stream is withdrawn from the condenser and introduced into a separator.Type: GrantFiled: June 30, 1980Date of Patent: July 21, 1981Assignee: Kerr-McGee Refining CorporationInventor: Jack W. Roach
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Patent number: 4279705Abstract: A process for oxidizing a metal of variable valence to a higher valence state by electrochemical means. More particularly, a process for oxidizing a metal of variable valence, such as, for example, uranium or vanadium contained in wet process phosphoric acid to a higher valence state for extraction by subsequent contact with complex organic extractants. The wet process phosphoric acid is oxidized in an electrolytic cell operated at a constant current density. The cell comprises a tank having at least one anode having a surface coating containing manganese dioxide and at least one cathode, said anode and cathode having a ratio of surface areas exposed to the electrolyte in said cell of from at least about 100:1.Type: GrantFiled: February 19, 1980Date of Patent: July 21, 1981Assignee: Kerr-McGee CorporationInventor: Olen L. Riggs, Jr.
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Patent number: 4279869Abstract: A process for recovering concentrated, purified tungsten values, such as ammonium paratungstate, from a brine containing minor amounts of soluble tungsten and a substantial concentration of impurities, the brine having a pH in the range of from about 7.0 to about 8.5. In general, the process comprises: contacting the brine with a substantially water-insoluble ion exchange resin to adsorb the soluble tungsten; eluting the adsorbed tungsten values from the ion exchange resin; treating the eluate to convert the tungsten values to an extractable species; recovering the extractable species of tungsten values from the eluate to substantially concentrate the tungsten values; contacting the concentrated tungsten values with an extractant to substantially load the extractant with the concentrated tungsten values; and recovering from the extractant a product having concentrated, purified tungsten values.Type: GrantFiled: December 13, 1979Date of Patent: July 21, 1981Assignee: Kerr-McGee CorporationInventor: Norman W. Coulson
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Patent number: 4278178Abstract: A child-resistant closure and container system is provided with a snap on and off closure requiring a coin or tool to remove the closure. A skirt wall on the closure is positioned sufficiently close to a shoulder on the container that the gap between the bottom edge of the skirt wall and adjacent shoulder is insufficient to admit a tool or to allow the teeth of a child to enter and to be used to pry off the closure. The shoulder diameter is equal to or greater than the diameter of the skirt wall to prevent the child's teeth from engaging and prying off the cap. A small notch is formed in the skirt wall to allow a coin or tool to be inserted and to be twisted against the shoulder to pry off the closure.Type: GrantFiled: May 21, 1979Date of Patent: July 14, 1981Assignee: Kerr Glass Manufacturing CorporationInventor: Milton L. Geiser
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Patent number: 4278529Abstract: A process for separating a solvent from a bituminous material by pressure reduction without carry-over of bituminous material. The fluid-like phase comprising bituminous material and solvent is reduced in pressure by passage through a pressure reduction valve and introduced into a steam stripper. The pressure reduction vaporizes part of the solvent and also disperses a mist of fine bituminous particles in the solvent. The solvent and mist are withdrawn from the steam stripper and introduced into a separation zone wherein they are caused to flow countercurrently to another stream of fluid-like bituminous material. The fluid-like bituminous material contacts the solvent and scrubs the fine bituminous material particles therefrom. The solvent is withdrawn and recovered. The fluid-like stream containing the bituminous particles can be recycled until the concentration is such that additional particles are not separated from the solvent after which a portion is bled off and fresh fluid-like material is added.Type: GrantFiled: June 30, 1980Date of Patent: July 14, 1981Assignee: Kerr-McGee Refining CorporationInventor: Junior A. Gearhart
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Patent number: 4277215Abstract: An improved system for automatically transferring particulate material, such as coal, is provided wherein the particulate material is transferred from a railroad car into an underground storage bunker while maintaining the material in a substantially covered or protected condition.Type: GrantFiled: October 4, 1979Date of Patent: July 7, 1981Assignee: Kerr-McGee Coal CorporationInventor: Weldon K. Johnson
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Patent number: 4273193Abstract: A process for drilling spaced horizontal boreholes in a coal or other mineral deposit in excess of 1500 feet in length in a pattern determined to maximize gas removal. Directional guidance is provided by a continuous downhole survey tool connected to data display devices by an internal drill rod cable system. Apparatus is provided to permit the passage of said cable system through the interior of a rotatable drill chuck assembly comprising a part of a drilling apparatus for drilling said boreholes. The apparatus supports the cable such that the cable is maintained in a substantially nonrotating position within the drill chuck assembly. Directional drilling control is provided by a positive displacement motor positioned at the end of the drill string and operated by a flow of drilling fluid through the drill string from the drilling rig. Upon completion of the borehole, the drill string is removed and gas which enters the borehole from the surrounding deposit is withdrawn.Type: GrantFiled: February 8, 1980Date of Patent: June 16, 1981Assignee: Kerr-McGee Coal CorporationInventor: John C. Tompkins
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Patent number: 4273644Abstract: A process for separating a solvent from a bituminous material by pressure reduction and steam stripping without carry-over of entrained bituminous material. A fluid-like phase comprising bituminous material and solvent is reduced in pressure by passage through a pressure reduction valve to vaporize a portion of the solvent. The reduction in pressure also results in dispersing a mist of fine bituminous material particles in the vaporized solvent. The stream of vaporized solvent, mist and fluid-like bituminous material then is introduced into a static mixer. The static mixer intimately mixes the mist with the fluid-like material and causes the mist to recombine with the fluid-like material from which it was formed. The resulting stream is introduced into a steam stripper to separate the solvent remaining in the bituminous material. The vaporized solvent and steam are withdrawn from the stripper substantially free of entrained bituminous material and condensed.Type: GrantFiled: June 30, 1980Date of Patent: June 16, 1981Assignee: Kerr-McGee Refining CorporationInventors: Samuel W. Harris, Jack W. Roach
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Patent number: 4272343Abstract: A process for beneficiating ilmenite ore using electrolytic reduction. The ilmenite ore is admixed with an acidic solution to form a mixture. The mixture is electrolytically reduced to convert at least a portion of any ferric iron that is present to ferrous iron. The acidic solution dissolves the ferrous iron in the ilmenite ore and yields beneficiated ilmenite having a relatively high titanium dioxide content.Type: GrantFiled: January 9, 1980Date of Patent: June 9, 1981Assignee: Kerr-McGee CorporationInventors: Dennis A. Brunsell, Olen L. Riggs, Jr.
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Patent number: 4269619Abstract: An improved digester method and apparatus particularly useful in the digestion stage of a process for the beneficiation of titaniferous iron ores and the like. A discharge nozzle is connected to a portion of the digester and the digested material is pumped from the digester via a pump connected to the discharge nozzle. In one aspect, fluid from a fluid source is passed through a portion of the discharge nozzle and into the interior of the digester for dislodging any solid-like masses prior to discharging the digested material and, in another aspect, fluid from the fluid source is passed into the discharging digested material from the digester.Type: GrantFiled: May 14, 1976Date of Patent: May 26, 1981Assignee: Kerr-McGee Chemical CorporationInventors: Howard R. Keil, Oscar L. Daigle
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Patent number: 4262964Abstract: The present invention contemplates a system for detecting an interface between a mineral seam and the surrounding earth formation utilizing a radiation source and a radiation receiver mounted on a miner having a positionable cutter assembly. As the miner is moved into the coal seam, a first distance is continuously sensed between one surface formed in the mineral seam by the miner cutter assembly and the surrounding earth formation and the miner cutter assembly is positioned in response to the sensed first distance. As the miner is withdrawn from the coal seam, a second distance is continuously sensed between one surface formed in the mineral seam by the miner cutter assembly and the surrounding earth formation and the miner cutter assembly is positioned in response to the sensed second distance.Type: GrantFiled: June 11, 1979Date of Patent: April 21, 1981Assignee: Kerr-McGee CorporationInventors: James E. Ingle, Jack L. Moon
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Patent number: 4261961Abstract: A process for liquid-liquid ion exchange of alkali metal ions. An alkaline aqueous phase containing potassium ions together with other alkali metal ions is contacted with an organic phase containing a polyol-boron-alkali metal complex. The organic phase preferentially extracts potassium values from the aqueous phase. The potassium values are separated from the polyol-boron-alkali metal complex by, for example, stripping with dilute sulfuric acid.Type: GrantFiled: November 30, 1979Date of Patent: April 14, 1981Assignee: Kerr-McGee Chemical CorporationInventor: Robert E. Davis
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Patent number: 4259310Abstract: A process for the manufacture of titanium disulfide by the vapor phase reaction of titanium tetrachloride and a sulfur containing gas. The titanium tetrachloride and the sulfur containing gas are preheated separately and the sulfur containing gas is introduced through a supply conduit at an established rate of flow into a reaction zone and the titanium tetrachloride is introduced into the reaction zone with a downstream component of velocity. A refractory material having a mean particle size greater than the titanium sulfide product is introduced into the product gas stream to impinge on the walls of the reaction zone to eliminate titanium disulfide deposition thereon.Type: GrantFiled: January 28, 1980Date of Patent: March 31, 1981Assignee: Kerr-McGee Chemical CorporationInventor: Thomas W. Clapper
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Patent number: 4254993Abstract: An improved mining apparatus for excavating material, such as coal, for example, from an earth formation, such as a coal seam, for example, wherein a miner, having a forward and a rearward cutter, is guided through the coal seam and excavates a borehole therein, the borehole being filled with a working fluid during the operation of the miner, the working fluid facilitating the operation of the miner and providing a vehicle for removing the mined material. Substantially all of the operations of the miner are controlled from the earth's surface thereby eliminating the necessity and accompanying hazards and costs involved in utilizing personnel underground during the mining operations.Type: GrantFiled: June 21, 1979Date of Patent: March 10, 1981Assignee: Kerr-McGee CorporationInventors: Dean A. McGee, James E. Ingle, Alan J. Lane
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Patent number: 4249951Abstract: A process for utilizing mineral-containing residue from coal liquefaction processes to produce a hydraulic cement. The residue is mixed with siliceous and calcareous matereals and compacted. The compacted solids are introduced into a kiln and fired to produce hydraulic cement clinker. The primary fuel for the clinker production is contained in the residue. The clinker is removed from the kiln and ground to produce cement.Type: GrantFiled: September 7, 1979Date of Patent: February 10, 1981Assignee: Kerr-McGee CorporationInventor: Robert E. Leonard
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Patent number: 4248601Abstract: A process for reducing the sodium chloride content of crystalline potassium salts without the use of successive recrystallization. The crystalline potassium salts having a sodium chloride content greater than about 0.8 percent by weight are subjected to compacting and crushing to provide a crystalline product having an average particle diameter less than 1.6 millimeters. The crystalline product is leached with a brine at least about 80 percent saturated with said potassium salt and less than 50 percent saturated with sodium chloride to produce a crystalline potassium salt product containing less than about 0.35 percent by weight of sodiumchloride.Type: GrantFiled: July 12, 1979Date of Patent: February 3, 1981Assignee: Kerr-McGee Chemical CorporationInventors: Eugene R. McGough, Albert Adams
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Patent number: 4248692Abstract: A process for removing an agglomerate of accumulated materials including ash concentrate which collects within the first heavy phase withdrawal conduit of a coal deashing system employing solvent at elevated temperatures and pressures near the critical temperature of the solvent. A carrier fluid is introduced into the first heavy phase withdrawal conduit simultaneously with or after pressure reduction of the heavy phase under conditions such that a turbulent flow profile is developed within the withdrawal conduit which results in the removal of at least a substantial portion of any accumulated materials within the withdrawal conduit.Type: GrantFiled: August 29, 1979Date of Patent: February 3, 1981Assignee: Kerr-McGee Chemical CorporationInventors: Alfred H. Knebel, Donald E. Rhodes