Patents Represented by Attorney J. A. Buchanan
  • Patent number: 6098767
    Abstract: A crash attenuator adapted to be mounted on a vehicle to attenuate some of the energy of an impact, the crash attenuator includes a frame adapted to be mounted on a vehicle; a slider mounted on the frame to slide in response relative to the frame toward the vehicle in response to an impact; a collapsible, energy-absorbing member positioned between the slider and the frame to absorb energy as the slider telescopes relative to the frame; and a crushable, energy-absorbing crash cushion on the outboard side of the slider.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: August 8, 2000
    Assignee: Albert W. Unrath, Inc.
    Inventor: Albert W. Unrath
  • Patent number: 4629511
    Abstract: The treatment of pavement surfaces with a rapid setting high float asphalt emulsion which comprises 50 to 75 weight percent asphalt, about 0.01 to 1.0 weight percent anionic emulsifier, about 0.2 to 15 weight percent carboxylic acid esters, sufficient base to provide said emulsion with a pH greater than about 9, and water.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: December 16, 1986
    Assignee: Chevron Research Company
    Inventor: Eugene J. Vanderzanden
  • Patent number: 4614832
    Abstract: Preparation of dialkyl oxalates by the oxidative carbonylation of alcohols which comprises reacting carbon monoxide with an alcohol in the presence of a catalytic amount of a catalyst comprising palladium in complex combination with a ligand and in the presence of a stoichiometric amount of a quinone. Advantageously, carboxylic acid cocatalysts may be employed in addition to the palladium-containing catalyst.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: September 30, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Patent number: 4599351
    Abstract: 3-(N-butyryl or valeryl-N-arylamino)-gamma-butyrolactones and their thio analogs. These compounds are useful as fungicides.
    Type: Grant
    Filed: February 1, 1984
    Date of Patent: July 8, 1986
    Assignee: Chevron Research Company
    Inventor: David C. K. Chan
  • Patent number: 4591006
    Abstract: A fully mobil and totally contained well servicing and drilling rig is disclosed having equipment on the rig for automatically handling well elements (pipe, tubing and rods) going into and coming out of a well. The rig provides well element storage racks, cranes for moving well elements onto and off the tracks, transfer means for moving well elements from horizontal to vertical position, well element conveying means for moving elements to and from the transfer means, an automatic manipulator for moving elements into alignment with the well being serviced, automatic hoisting means, means for connecting and disconnecting elements from the element string within the well, driving means for all of the equipment, and control means for sequencing and operating all of the means so that the entire well servicing or drilling can be accomplished without human handling of well elements in the vicinity of the well head and rig.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: May 27, 1986
    Assignee: Chevron Research Company
    Inventors: Stanley O. Hutchison, Paul V. Oldershaw, James E. Hansen
  • Patent number: 4584423
    Abstract: A process for isomerizing xylenes containing ethylbenzene to obtain near equilibrium amounts of paraxylene and to convert the ethylbenzene to hydrocarbons readily removable from the xylenes. The isomerization reaction uses a ZSM-5 type catalyst with 0.05 to 1.5 percent of an added metal such as zinc, cadmium, or barium. The isomerization is carried out in the absence of added hydrogen at low pressure, preferably between about 0 and 200 psig. Relatively low xylene losses are achieved even at high ethylbenzene conversion levels.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: April 22, 1986
    Assignee: Chevron Research Company
    Inventors: Gerald J. Nacamuli, Donald A. Hickson
  • Patent number: 4579991
    Abstract: A process for the preparation of alpha olefin oligomers having predominantly terminal unsaturation using a catalyst system comprising an alkyl aluminum halide component and a second component comprising at least one zirconium compound, preferably in combination with at least one titanium compound. There is also disclosed a catalyst composition for use in this process.
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: April 1, 1986
    Assignee: Chevron Research Company
    Inventor: Mary A. White
  • Patent number: 4579582
    Abstract: 5-Deoxy-3-O-arylmethyl or substituted arylmethyl-1,2-O-alkylidene-a-D-xylofuranose and 5-C-alkyl and alkenyl derivatives thereof. The compounds are useful as herbicides and plant growth regulators.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: April 1, 1986
    Assignee: Chevron Research Company
    Inventor: William Loh
  • Patent number: 4579644
    Abstract: A temperature gradient in staged turbulent bed retort established by adding heat transfer material at different levels along vertical length of retort to prevent thermal cracking of product vapors.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: April 1, 1986
    Assignee: Chevron Research Company
    Inventors: Byron G. Spars, Robert P. Sieg
  • Patent number: 4569841
    Abstract: A strain of Erwinia herbicola identified as EHO-10 has been found to have a broad spectrum of inhibitory activity against pathogenic bacteria. Pathogenic bacteria inhibited by EHO-10 includes those from the following genera: Agrobacterium, Corynebacterium, Erwinia, Pseudomonas, and Xanthomonas. EHO-10 has inhibitory activity against Erwinia amylovora, a bacteria pathogen causing fire blight disease of pear and other trees.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: February 11, 1986
    Assignee: Chevron Research Company
    Inventor: Shih-Tung Liu
  • Patent number: 4567154
    Abstract: A catalyst composition for use in polymerizing alpha olefins which comprises a solid supported titanium complex and a cocatalyst comprising a mixture of an alkyl aluminum halide and a dialkyl magnesium or alkyl lithium compound.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: January 28, 1986
    Assignee: Chevron Research Company
    Inventor: Robert Bacskai
  • Patent number: 4556496
    Abstract: A refrigeration lubricating oil composition comprising a branched-chain alkylbenzene or mixture of branched-chain alkylbenzenes containing a total of from 10 to 25 carbon atoms in the alkyl groups, and about 50 ppm to 5 weight percent of a dialkyl sulfosuccinate wherein each alkyl group has 3 to 7 carbon atoms.
    Type: Grant
    Filed: March 28, 1984
    Date of Patent: December 3, 1985
    Assignee: Chevron Research Company
    Inventor: David J. Glova
  • Patent number: 4554010
    Abstract: 5-Deoxy-3-O-arylmethyl or substituted aryl-methyl-1,2-O-substituted-alkylidene or cycloalkylidene-alpha-D-xylofuranose and 5-C-alkyl, alkylidenyl and alkenyl derivatives thereof. The compounds are useful as herbicides and plant growth regulators.
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: November 19, 1985
    Assignee: Chevron Research Company
    Inventor: William Loh
  • Patent number: 4554011
    Abstract: 2S-(2.beta.,4.beta.,5.beta.)-5-Arylmethoxy-4-substituted 2-alkyl-1,3-dioxane and derivatives thereof. The compounds are especially useful as herbicides.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: November 19, 1985
    Assignee: Chevron Research Company
    Inventor: William Loh
  • Patent number: 4537623
    Abstract: Herbicidal 2-(oxaheterocycle or thiaheterocycle)-5-amino-3-oxo-4-(substituted-phenyl)-2,3-dihydrofurans and derivatives thereof. The compounds generally exhibit both pre-emergence and post-emergence phytotoxicity and are useful as herbicides and also plant growth regulating agents at low dosages.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: August 27, 1985
    Assignee: Chevron Research Company
    Inventor: Carl E. Ward
  • Patent number: 4534965
    Abstract: A method and composition is provided to control fungal infection of seeds and seedlings. Certain species of Streptomyces are grown on dried ground shrimp waste preferably suspended in a mineral salts medium. The supernate derived from the culture provides fungal infection control when used as a seed-coating or seed-soaking material. The residue, consisting of unused shrimp waste and a Streptomyces species, also provides protection against fungal infection of plants such as cotton seedlings. The residue is employed as a amendment to the soil in the immediate area of the newly planted seed.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: August 13, 1985
    Assignee: Chevron Research Company
    Inventors: Lewis R. Brown, Susan Brown-Skrobot
  • Patent number: 4534785
    Abstract: 5-Deoxy-3-O-arylmethyl or substituted arylmethyl-1,2-O-ethylene-alpha-D-xylofuranose and 5-C-alkyl, alkylidenyl and alkenyl derivatives thereof. The compounds are useful as herbicides and plant growth regulators.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: August 13, 1985
    Assignee: Chevron Research Company
    Inventor: William Loh
  • Patent number: 4531968
    Abstract: Halothiopyruvic amides, which have viricidal and/or fungicidal activity of the formula: ##STR1## wherein X is chloro, fluoro, bromo or iodo; andR is cyclohexyl substituted with 0, 1 or 2 lower alkyl groups, or phenyl substituted with 0, 1 or 2 lower alkyl groups.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: July 30, 1985
    Assignee: Chevron Research Company
    Inventors: William L. Schinski, Raymond J. Lukens
  • Patent number: 4501329
    Abstract: An improved particulate material is disclosed for use in a method for altering the permeability of a gravity override or relatively high permeability path through a subsurface earth formation resulting from fluid injection into the subsurface formation. The method includes adding selectively sized, finely divided, amorphous non-abrasive particulate material to a fluid and injecting the fluid into the gravity override or relatively high permeability path to deposit the particulate material thus altering the permeability in the override, or relatively high permeability path. The particulate material may include graphite, carbon black, clay suspensions, quartz, or other minerals reduced in size range to behave as non-abrasive amorphous material which will present a non-abrasive characteristic in injection wells and if the particulate material is produced with formation fluids from the treated formation.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: February 26, 1985
    Assignee: Chevron Research Company
    Inventor: Coral L. DePriester
  • Patent number: 4496786
    Abstract: A process for the conversion of methanol to olefins by contacting an methanol-containing feedstock with an SSZ-13 under methanol conversion conditions.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: January 29, 1985
    Assignee: Chevron Research Company
    Inventors: Donald S. Santilli, Stacey I. Zones