Patents Assigned to Kerr
  • Patent number: 4094810
    Abstract: An improved process for providing an aqueous slurry of an ash concentrate composition wherein predetermined amounts of the composition are mixed into a solution of water and a surfactant at a predetermined rate. The slurry is pumpable and is produced via the process of the present invention without the necessity of providing pH adjustments.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: June 13, 1978
    Assignee: Kerr-McGee Corporation
    Inventor: David C. Thomas
  • Patent number: 4093936
    Abstract: A logging method and apparatus for measuring parameters of an earth formation near a borehole wherein a first downhole logging device is connected to a first surface measuring apparatus via a coaxial cable in a first mode of operation of the logging apparatus and wherein a second downhole logging device is connected to a second surface measuring apparatus and to a surface power supply via the coaxial cable in a second mode of operation of the logging apparatus, the second downhole logging device being connected to the coaxial cable in response to the surface power supply being connected to the coaxial cable.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: June 6, 1978
    Assignee: Kerr-McGee Corporation
    Inventors: Howard C. Eberline, Jack L. Moon
  • Patent number: 4092848
    Abstract: This invention relates to a method and apparatus for readily determining the wear experienced in the interior conical section of a hydrocyclone during use of the hydrocyclone.In the practice of this invention, the apparatus is inserted into the hydrocyclone interior until it is flush with the conical interior section of the hydrocyclone after which the length of the tip of the apparatus protruding from the hydrocyclone is measured. As the conical interior section of the hydrocyclone wears during use, the length of the protruding tip of the apparatus will increase upon measurement. A rejection criteria is developed based on independent measurements while maintaining the desired particle size distribution in the overflow product and the desired flow split ratio of overflow to underflow of the fluid hydrocyclone feed material to determine at what point a hydrocyclone should be rejected as no longer suitable to achieve the desired hydrocyclone separation while maintaining the desired flow split ratio.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: June 6, 1978
    Assignee: Kerr-McGee Chemical Corporation
    Inventor: David Charles Thomas
  • Patent number: 4092237
    Abstract: In accordance with this invention, oil shale is introduced into a lock which discharges into a closed, vertical, stationary kiln fitted with mechanisms which cause the particulate oil shale to move continuously downwardly in a controlled, uniform plug type flow. The shale is heated by a counter flow of hot, nonoxidizing gases to the temperature required to pyrolyze the kerogen. The gaseous fraction of the kerogen joins the counter flowing gases for removal from the top of the kiln. The hot particulate shale containing the carbonaceous fraction of the kerogen moves downwardly through a second lock into a conveyance connected to the top of a second similar kiln wherein the carbonaceous residue is reacted with gaseous water and oxygen in a cocurrent manner to supply heat to the decarbonized shale and to produce carbon oxides and hydrogen.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: May 30, 1978
    Assignee: Kerr-McGee Corporation
    Inventor: Homer Charles Reed
  • Patent number: 4090958
    Abstract: An improved coal processing system wherein a feed mixture (including coal, dissolving solvent, insoluble coal products and soluble coal products) at a first temperature level is separated in a first separation zone into a heavy fraction including the insoluble coal products and a light fraction and, thereafter, the heavy fraction is withdrawn from the first separation zone and heated to a second temperature level higher than the first temperature level and in which the second temperature level is sufficiently high to produce a heavy fraction that is flowable.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: May 23, 1978
    Assignee: Kerr-McGee Corporation
    Inventor: Robert Edward Leonard
  • Patent number: 4090957
    Abstract: An improved coal processing system wherein relatively small droplets of a feed mixture (including both soluble and insoluble coal products) are dispersed in a first separation zone and contacted, countercurrently with a dissolving solvent to form a heavy fraction containing the insoluble coal products and a separate light fraction containing the soluble coal products.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: May 23, 1978
    Assignee: Kerr-McGee Corporation
    Inventor: Robert E. Leonard
  • Patent number: 4085027
    Abstract: An improved hybrid bipolar electrode particularly useful in an alkali chloride electrolysis application, having an anodic member and cathodic member connected in spaced apart relationship by a fastener assembly, a seal being formed between portions of the anodic member and the cathodic member to substantially seal electrolyte from the space between the anodic member and the cathodic member. In one aspect, a barrier member is interposed between the anodic member and the cathodic member to inhibit the contact of migrating atomic hydrogen with the anodic member. In one other aspect of the present invention, a portion of the fastener assembly is constructed of an electrically conductive material and electrical continuity is established between the anodic member and the cathodic member via the fastener assembly, the barrier member serving to effectuate a more even distribution of current flow between the cathodic member and the anodic member in yet another aspect of the present invention.
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: April 18, 1978
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Kenneth A. Poush, James E. Reynolds
  • Patent number: 4075032
    Abstract: The present invention provides a process for the surface treatment of antimony oxide for use as a pigment in paints or plastics wherein a hydrous oxide or mixture of oxides is precipitated onto the antimony oxide pigment. Specifically, this invention concerns the precipitation of hydrous oxides of titania, alumina or silica. In operation, the pH of an aqueous slurry of antimony oxide is adjusted to be within a specified pH range and the coating of the antimony oxide is effected by adding an amount of the hydrous oxide to cause precipitation of the hydrous oxide upon the antimony oxide pigment. The present invention contemplates an improved antimony oxide pigment having a first coating of amorphous alumina and a second coating of boehmite alumina. The present invention also contemplates an improved antimony oxide pigment having a first coating of titania and a second coating of alumina.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: February 21, 1978
    Assignee: Kerr-McGee Chemical Corporation
    Inventor: David Charles Thomas
  • Patent number: 4070267
    Abstract: An improved system for processing coal wherein a feed mixture (comprising a dissolving solvent, insoluble coal products and soluble coal products) is separated in a first separation zone, provided with a coalescing section, into a first heavy fraction and a first light fraction (comprising soluble coal products, the dissolving solvent and some insoluble coal products), and a portion of the insoluble coal products is separated from the first light fraction by contacting at least the first light fraction with the coalescing section. Such contacting reduces the amount of insoluble coal products in the first light fraction withdrawn from the first separation zone.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: January 24, 1978
    Assignee: Kerr-McGee Corporation
    Inventor: Robert E. Leonard
  • Patent number: 4070268
    Abstract: An improved coal deashing process wherein coal is mixed with a first dissolving solvent, heated, solubilized and flashed to provide a prepared mixture. The flashing is effected at a temperature below about 650.degree. F. to increase the amount of the first dissolving solvent in the prepared mixture. The prepared mixture then is mixed with a second dissolving solvent to produce a feed mixture which is subjected to two or more successive phase separations. Insoluble coal products present are separated from the feed mixture in a first separation zone and the soluble coal products are recovered from the first and the second dissolving solvents in a second separation zone. The second dissolving solvent is recovered from the first and the second heavy fractions and the second light fraction for recycling to aid in producing the feed mixture. The first dissolving solvent is recovered from the first and second flash zones.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: January 24, 1978
    Assignee: Kerr-McGee Corporation
    Inventors: Robert E. Davis, Roger A. Baldwin
  • Patent number: 4069130
    Abstract: An improved bipolar electrode having an anodic member and a cathodic member connected in an assembled position spaced a distance apart via a fastener assembly disposed between the anodic member and the cathodic member. In one aspect of the present invention, a portion of the fastener assembly is constructed of an electrically conductive material and, in this aspect, the fastener assembly establishes electrical continuity between the anodic member and the cathodic member in addition to providing the mechanical interconnection between the anodic member and the cathodic member.
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: January 17, 1978
    Assignee: Kerr-McGee Chemical Corporation
    Inventor: Olen L. Riggs, Jr.
  • Patent number: 4053078
    Abstract: A child safe closure of the kind which is secured to a container by interengagement of locking lugs within locking recesses is provided with a sealing member which provides a moisture tight seal with an internal wall of the container. The sealing member has a sealing bead which is inserted deeply within the container opening to a location adjacent or below the lower ends of integrally formed locking lugs or recesses on the container to avoid any depressions made in the interior wall of the container during cooling of thicker cross sectional portions of the container wall. A tapered lead-in surface on the container guides and centers the sealing bead as it travels downwardly toward its sealing position. Preferably, the sealing member is in the form of a separable, flexible sealing fitment retained within the closure cap and formed with an annular flange connected through an annular transverse V-shaped web to a circular planar crown.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: October 11, 1977
    Assignee: Kerr Glass Manufacturing Corporation
    Inventor: James E. Herr
  • Patent number: 4034033
    Abstract: A method of recovering plastic material from phonograph record center sections and making plastic phonograph records incorporating the recovered material, comprising the steps of:A. recovering the plastic material from the center portions of discarded phonograph records by removing the labels from the center portions after they have been immersed in an aromatic hydrocarbon and crushing the center portions into small particles;B. combining the recovered material with proportions of scrap from phonograph records, briquets of plastic and new polyvinyl chloride to arrive at a new material composition comprising 20% recovered plastic from the center portions, 25% scrap plastic, 25% briquets, and 30% new polyvinyl chloride;C. heating the new material composition in a three temperature zoned furnace with its first zone being heated to a temperature ranging from 215.degree. F-225.degree. F, its second zone being heated to a temperature ranging from 235.degree. F-245.degree.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: July 5, 1977
    Assignee: Fredrick M. Kerr
    Inventor: Ricardo Haro Carrere
  • Patent number: 4028219
    Abstract: This invention relates to an improved process for the production of deashed coal which includes contacting coal with coal dissolving solvent at elevated temperature and pressure in a hydrogen atmosphere and thereafter passing the resulting mixture to a vacuum tower to remove coal dissolving solvent for recirculation and leave vacuum tower still bottoms, which are substantially free of coal dissolving solvent. Said still bottoms then are contacted with a solubilizing solvent to dissolve a substantial quantity of said still bottoms after which said dissolved still bottoms are separated from undissolved still bottoms. The separation procedure may be effected by settling, countercurrent decantation, or filtration using pressure precoated rotary and plate filters and the like.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: June 7, 1977
    Assignee: Kerr-McGee Corporation
    Inventors: Roger Allen Baldwin, Robert Elliott Davis
  • Patent number: 4022636
    Abstract: The present invention provides an improved process for coating titanium dioxide with precipitated alumina (aluminum oxide) for use as a pigment in plastics wherein a first coating of amorphous alumina is precipitated onto the titanium dioxide and then a second coating of crystalline alumina is precipitated over the first coating. In operation, the pH of an aqueous slurry of titanium dioxide pigment is adjusted to be within a first pH range as the first alumina coating is effected by adding an amount of sodium aluminate to the aqueous slurry and then the pH of the slurry is adjusted to be within a second pH range while a second amount of sodium aluminate is added to form the second coating over the first coating. The present invention also contemplates an improved titanium dioxide pigment having a first coating of amorphous alumina and a second coating of boehmite alumina.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: May 10, 1977
    Assignee: Kerr-McGee Chemical Corporation
    Inventor: Edward Conley Murray
  • Patent number: 4002259
    Abstract: To prevent leakage of the container contents when a child attempts to turn a child-safe closure in the removal direction, the closure is formed with a series of closely spaced detent members at least one of which will abut a detent member on the container to limit turning of the closure in the removal direction to a degree insufficient to allow leakage. Preferably, a series of six closely adjacent radially extending tab like detent members extend outwardly from the skirt wall of the closure within a quadrant of the skirt wall to assure locking by at least the leading or trailing one of the detent members under the worst tolerance conditions. The intermediate detent members become effective for other tolerance conditions which result in the manufacture of the closure and container which are usually made of molded plastic.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: January 11, 1977
    Assignee: Kerr Glass Manufacturing Corporation
    Inventor: Milton L. Geiser
  • Patent number: 3988587
    Abstract: An improved method and apparatus for providing an indication of the radiation activity of the radioactive decay products of radium in an environment wherein the alpha particle activity and the beta particle activity at a test site are detected and the detected alpha particle and the beta particle activities provide the indication of the radiation activity of radon and the decay products of radon at the test site. The background radiation activity at the test site is detected, and the detected alpha particle and the beta particle activities less the detected background radiation activity provide the indication of the radiation activity of radon and the decay products of radon.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: October 26, 1976
    Assignee: Kerr-McGee Nuclear Corporation
    Inventors: James D. Shreve, Jr., Larry S. Trowsdale, Adare Hill
  • Patent number: 3986740
    Abstract: This invention relates to an access door arrangement for easy entry into ductwork. The access door has a circular collar member which has a flat inner flange that threads into a hole in the ductwork. A closure member is located over an outer flange on the collar member. An annular gasket may be placed between the outer flange and the closure member for sealing or insulating purposes. The closure member is held firmly over the hole by a retaining ring which is placed over the closure member with its ends drawn together and held by a clasp and latch arrangement. The access door is very quickly and easily opened by merely releasing the retaining ring by opening the clasp and latch arrangement and moving the closure member off the collar. Furthermore, the whole access door arrangement is readily and quickly installed on ductwork by turning the inner flange into or out of a properly sized hole.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: October 19, 1976
    Assignee: Kerr-Hunt and Associates Limited
    Inventor: Norman Sergent Kerr
  • Patent number: 3984608
    Abstract: A method is provided for treating ionomeric polymers so as to inhibit the tendency of the polymers to form films. A coating composition including the treated ionomeric polymer is suitable for coating glassware so as to provide glassware having improved resistance to abrasion. The ionomeric polymer coating on the glassware resists film formation when the coating is inadvertently applied to the interior surface of the glassware. The method includes the step of adding colloidal silica to an aqueous dispersion of an ionomeric polymer.
    Type: Grant
    Filed: April 17, 1974
    Date of Patent: October 5, 1976
    Assignee: Kerr Glass Manufacturing Corporation
    Inventor: Herman E. Opitz
  • Patent number: 3981929
    Abstract: A method of separating methylolphenols from an organic solution containing the methylolphenols by contacting the organic solution with an aqueous alkaline borate solution in which lithium ions are present in a quantity greater than any other single alkali metal ion for a period of time sufficient to form a solid complex of the lithium and boron with the methylolphenols which then are separated from the organic solution.The methylolphenols subsequently may be recovered from the complex by decomposing the complex with acid and dissolving the released methylolphenols in an organic solvent.
    Type: Grant
    Filed: May 16, 1974
    Date of Patent: September 21, 1976
    Assignee: Kerr-McGee Corporation
    Inventors: Robert Elliott Davis, Friedrich Josef Weck