Patents Assigned to Continental Oil Company
  • Patent number: 4106586
    Abstract: The present invention relates to an improved hydraulic vibrator of the type which includes a fixed double rod piston and a reaction mass reciprocally disposed around the piston forming a hydraulic cylinder therein so that when hydraulic fluid is introduced to the cylinder relative to the piston the reaction mass is reciprocated. By the present invention a pair of sleeves are slidably disposed on the piston rods, portions of which can be selectively moved into the cylinder to decrease the displacement of the cylinder and thereby increase the frequency range of vibrations producible by the vibrator.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: August 15, 1978
    Assignee: Continental Oil Company
    Inventor: Jay H. Stafford
  • Patent number: 4107421
    Abstract: A method for reducing the vinyl halide content of polyvinyl halide, in particle form, containing vinyl halide, to a preselected level is disclosed. Briefly, the method comprises: (a) determining the threshold temperature corresponding to said preselected level of vinyl halide, and (b) purging the polyvinyl halide containing vinyl halide with an inert gas heated to a temperature of at least the determined threshold temperature until the vinyl halide content of the polyvinyl halide reaches said preselected level.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: August 15, 1978
    Assignee: Continental Oil Company
    Inventors: John F. Scamehorn, David V. Porchey
  • Patent number: 4105699
    Abstract: A process for preparing o-benzylphenol in high selectivity is disclosed. The process comprises heating a mixture of benzyl alcohol and phenol in the presence of an effective amount of activated alumina as a catalyst.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: August 8, 1978
    Assignee: Continental Oil Company
    Inventor: Charles M. Starks
  • Patent number: 4105698
    Abstract: A process for preparing ortho-substituted cinnamyl phenols is disclosed. The process comprises heating a mixture of cinnamyl alcohol and phenol in the presence of an effective amount of activated alumina.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: August 8, 1978
    Assignee: Continental Oil Company
    Inventors: Charles M. Starks, Allan J. Lundeen
  • Patent number: 4104906
    Abstract: Early detection of cracks in nonpermeable, structural members subject to stress is effected before the cracks traverse the member by forming a plurality of cavities in the member or adjacent thereto in which a plurality of fluids at differing pressures are confined and monitored, such that a crack in the structural member penetrating between at least two cavities allows passage of fluid between the cavities and is thus detected by a pressure sensor. The apparatus and process is particularly applicable to early detection with vacuum of cracks in the heat affected zone adjacent to welds on critical stressed members of an offshore platform. A strain gauge system may be employed in conjunction with the crack detection system.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: August 8, 1978
    Assignee: Continental Oil Company
    Inventor: Donald H. Oertle
  • Patent number: 4104806
    Abstract: An improved method of drying particulate matter, subject to agglomeration, by fluidized bed drying is disclosed. The improvement of the method comprises adding an effective amount of a fluidizing agent to the particulate matter prior to drying.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: August 8, 1978
    Assignee: Continental Oil Company
    Inventor: Robert J. Reusch
  • Patent number: 4105618
    Abstract: Sand control in an incompetent formation is effected by squeezing a thickened composition [comprising a hydrocarbon oil carrier, particulate matter (e.g. sand) a base-settable thermosetting resin, a neutralizing agent (e.g. lauryl amine), a miscible polar solvent (e.g. ethanol), and a carboxy vinyl polymer (e.g. CARBOPOL 934)] in contact with the incompetent formation and curing with a basic catalyst.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: August 8, 1978
    Assignee: Continental Oil Company
    Inventors: Thomas R. Sifferman, Derry D. Sparlin
  • Patent number: 4104454
    Abstract: A method for preventing polymer buildup in the polymerization reactor during the suspension polymerization of vinyl chloride monomer to form polyvinyl chloride polymer and copolymers, the method comprising coating reactor surfaces in contact with the reaction medium with a material selected from the group consisting of alumina, dithiooxamide, and mixtures of these prior to carrying out this polymerization.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: August 1, 1978
    Assignee: Continental Oil Company
    Inventors: Dean R. Weimer, Albert M. Durr
  • Patent number: 4101174
    Abstract: A liquid level sensor for determining the fluid level in a container and for controlling a fluid inlet to the container in response to the fluid level therein. The sensor includes a buoyant liquid-filled flexible conduit or liquid-filled hinged pipe member in the container and a pressure transducer responsive to the head pressure of the liquid in the flexible conduit or hinged pipe member.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: July 18, 1978
    Assignee: Continental Oil Company
    Inventor: Thomas R. Miller
  • Patent number: 4099565
    Abstract: Data useful to evaluate the effectiveness of or to design an enhanced recovery process (the recovery process involving mobilizing and moving hydrocarbons through a hydrocarbon-bearing subterranean formation from an injection well to a production well by injecting a mobilizing fluid into the injection well) are obtained by a process which comprises sequentially: determining hydrocarbon saturation in the formation in a volume in the formation near a well bore penetrating the formation, injecting sufficient of the mobilizing fluid to mobilize and move hydrocarbons from a volume in the formation near the well bore penetrating the formation, and determining by the single well tracer method a hydrocarbon saturation profile in a volume from which hydrocarbons are moved. The single well tracer method employed is disclosed by U.S. Pat. No. 3,623,842. The process is useful to evaluate surfactant floods, water floods, polymer floods, CO.sub.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: July 11, 1978
    Assignee: Continental Oil Company
    Inventors: Clyde Q. Sheely, Jr., David E. Baldwin, Jr.
  • Patent number: 4100035
    Abstract: Delayed petroleum coke is produced by conventional processing, including steaming of the coke in the drum to remove volatile material. After the steaming operation, the coke is quenched by injecting water onto the top of the steamed coke and passing the quench water downwardly through the coke, whereby the coke bed acts as a filter to trap fines which would pass overhead when the normal method of quenching by injecting quench water upwardly is used. Apparatus including retractable spray nozzles extending into the coke drum from the top is described.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: July 11, 1978
    Assignee: Continental Oil Company
    Inventor: George E. Smith
  • Patent number: 4100209
    Abstract: Alkyl alcohols are separated from alkyldimethylamines using an immiscible solvent mixture comprising a polar solvent (e.g. dimethylformamide) and a nonpolar solvent (e.g. hexane). The process is particularly useful for C.sub.12-14 alcohols and C.sub.12-14 alkyldimethylamines.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: July 11, 1978
    Assignee: Continental Oil Company
    Inventor: William J. Libbey
  • Patent number: 4100207
    Abstract: A method of preparing methyl-substituted phenols is disclosed. The method comprises heating a mixture of mono- or di-hydrocarbyl-substituted cresols and methanol at an elevated temperature in the presence of a catalytic amount of magnesium oxide.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: July 11, 1978
    Assignee: Continental Oil Company
    Inventors: Thomas E. Goodwin, Charles M. Starks
  • Patent number: 4098415
    Abstract: A method for rotating hose movably supported by a plurality of carts in a mine, comprising attaching a means to the roof of the mine for lifting the hose, lifting the hose using reversible hoist means, the hose resting on a support means passing under said hose, said support means having incorporated therein means for rotating the hose before replacing on the cart.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: July 4, 1978
    Assignee: Continental Oil Company
    Inventor: Charles E. Mason
  • Patent number: 4098593
    Abstract: A method for improving carbon bed loadings by diluting the vapor feed in order to produce optimum VCM concentrations for the adiabatic adsorption of VCM on dry activated carbon beds. The optimum concentrations are determined for each concentration and temperature of vapor gas.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: July 4, 1978
    Assignee: Continental Oil Company
    Inventors: Andrew J. Eisenstein, Richard A. Frohreich, John F. Scamehorn
  • Patent number: 4098711
    Abstract: Flexible polyvinyl chloride insulation for wire is made conductive at elevated temperatures activating a sensing conductor and eliminating thermostatic controls. Conduction through the insulation is imparted by adding compounds such as nonylphenoxy (ethyleneoxy) ethanol, certain metallic salts of alcohol sulfates, mixed ortho, parasulfonamides, and liquid crystal compounds.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: July 4, 1978
    Assignee: Continental Oil Company
    Inventor: Charles H. Rogers
  • Patent number: 4097535
    Abstract: An improved method of preparing an aldehyde by passing alcohol and air through a reactor containing a silver catalyst is disclosed. Briefly, the improvment comprises passing the alcohol and air through a zone, packed with silver catalyst, maintained at subreaction temperature prior to passing the reactants through the reaction zone. In a preferred embodiment, the reactants, after leaving the reaction zone, are passed through a zone containing inert material and maintained at a subreaction temperature.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: June 27, 1978
    Assignee: Continental Oil Company
    Inventors: Kang Yang, Kaye L. Motz, James D. Reedy
  • Patent number: 4095425
    Abstract: A control system for providing precise speed control for a rotary air modulator, and particularly for providing synchronized speed control as between two or more rotary air modulators. A common reference frequency is used for controlling rotational speed of one or more rotary air modulators wherein each modulator deploys an individual feedback system responsive to the reference frequency input to provide precise rotational speed and angular position coordination and, therefore, synchronism of frequency and phase output as between two or more individual modulators. The individual feedback systems include feedback and summation circuitry which derives angular velocity correction, angular position correction and hydraulic pressure drive variation for thereafter correcting and maintaining precise speed control of the rotary drive system.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: June 20, 1978
    Assignee: Continental Oil Company
    Inventors: Graydon L. Brown, Larry L. Newlin
  • Patent number: 4094766
    Abstract: Liquefaction of coal is effected by extraction of coal by a distillable solvent in the presence of hydrogen under conditions selected to produce a coal liquefaction product, the major portion of which is distillable. The effluent slurry product is vacuum distilled to recover the distillables including the solvent. The bottoms fraction is subjected to solvent treatment or fractionation to selectively recover the lower molecular weight portion, which portion is hydrogenated to yield distillate fuels. The remainder of the bottoms fraction is used as feed to a gasifier to make a hydrogen-rich gas or a methane-rich gas as desired.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: June 13, 1978
    Assignee: Continental Oil Company
    Inventor: Everett Gorin
  • Patent number: 4093667
    Abstract: Preparation of 4-n-hexylresorcinol is achieved by a two-step process involving: first preparing hexyl resorcyl ethers by reacting resorcinol with a hexylating agent having the general formula 1-C.sub.6 H.sub.13 X in the presence of a base, and second, treating the reaction product obtained with a catalyst to yield 4-n-hexylresorcinol by a rearrangement process. X can be selected from the group consisting of Cl- Br-, I-, ArSO.sub.3.sup.-, and similar materials.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: June 6, 1978
    Assignee: Continental Oil Company
    Inventor: Charles Masterson Starks