Patents Represented by Law Firm J & A
  • Patent number: 4347590
    Abstract: An area surveillance system which combines an ultrasonic intrusion detector, an electronic range finder, an instant camera and an alarm. The system is packaged in a temper-proof housing and is particularly suitable for the protection of residential and commercial buildings and for providing a quick identification of intruders. The output of the range finder is used to focus the camera objective on the intruding subject. After focusing a series of pictures of the area are taken. The pictures are readily available for early identification of the intruder. By means of an interface programming device, immediate or delayed silent and/or audible alarms are triggered upon detection of the intruder.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: August 31, 1982
    Inventors: Vernon G. Heger, Henri J. A. Charmasson
  • Patent number: 4341625
    Abstract: A method is provided for preparing a porous catalyst carrier having a pore volume of at least 0.5 cc/g, a content of micropores in which the pore diameter is between 80 and 150 A. which constitutes at least 70% of the pore volume and a content of macropores which constitutes less than 3% of the pore volume. In the method, a powdered solid comprised of predominantly alpha-alumina monohydrate and sized in the range below 500 microns is treated with a particular amount of a monobasic acid. The acid in the resulting mixture is then at least partially neutralized by admixing with a nitrogen base such as aqueous ammonia. The treated and neutralized feed is converted into a catalyst carrier by shaping as desired, drying, and calcining. Further aspects of the invention are a hydrodesulfurization catalyst prepared using the present carrier and a hydrodesulfurization process for metals-contaminated hydrocarbon feeds using the catalyst.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: July 27, 1982
    Assignee: Chevron Research Company
    Inventor: Paul W. Tamm
  • Patent number: 4340757
    Abstract: A process for the preparation of 2,6-dialkylaniline which comprises the reaction of 1,3-dialkyl-5-tertiary-butylbenzene with molecular bromine to form 2-bromo-1,3-dialkyl-5-tertiary-butylbenzene, which is subsequently reacted with 1,3-dialkylbenzene in the presence of hydrogen fluoride to form a mixture of 2-bromo-1,3-dialkylbenzene and 1,3-dialkyl-5-tertiary-butylbenzene, which is then reacted with ammonia in the presence of a catalytic amount of cuprous halide.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: July 20, 1982
    Assignee: Chevron Research Company
    Inventor: Shigeto Suzuki
  • Patent number: 4340758
    Abstract: A process for the preparation of 2,6-dialkylaniline which comprises the reaction of 1,3-dialkylbenzene with isobutene in the presence of a hydrogen fluoride catalyst to form 1,3-dialkyl-5-tertiary-butylbenzene, which is subsequently nitrated in the presence of a soluble mercuric salt catalyst to form 2-nitro-1,3-dialkyl-5-tertiary-butylbenzene, which is then catalytically hydrogenated to give 2,6-dialkyl-4-tertiary-butylaniline, followed by pyrolysis in the presence of a heterogeneous acidic catalyst.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: July 20, 1982
    Assignee: Chevron Research Company
    Inventors: Seymour J. Lapporte, David M. Marquis
  • Patent number: 4339461
    Abstract: N-substituted-3-nitro-benzylamines have been found to be fungicidally effective, particularly against Tomato Early Blight and Bean Powdery Mildew.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: July 13, 1982
    Assignee: Chevron Research Company
    Inventor: William F. King
  • Patent number: 4336539
    Abstract: A method and apparatus for converting a plan position indicating (PPI) radar image signal into a raster-type video signal and for broadcasting the radar image over an area scanned by the radar beam, where it can be received by a craft traveling within said area. Means are also provided on board each craft for indicating the position of the craft on said image. The PPI radar image signal is first converted to a digital form and stored in a memory unit; then extracted from the memory unit in a format compatible with the television raster display system. The radar image is broadcasted in its PPI form and converted on-board the craft. Means are provided on the crafts for synchronizing the radar image signal with an enhancing signal generated every time the radar beam sweeps over the corresponding crafts.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: June 22, 1982
    Inventor: Alvin E. Hendrickson
  • Patent number: 4335980
    Abstract: A hull heating system for an offshore production structure for use in arctic waters wherein the heat from the produced fluids is used to maintain the temperature of the outer surface of the structure above the melting temperature of the ice adjacent the structure.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: June 22, 1982
    Assignee: Chevron Research Company
    Inventor: Coral L. DePriester
  • Patent number: 4334118
    Abstract: Improved processes for polymerizing C.sub.3 -C.sub.12 olefins (e.g. propylene) comprising polymerizing olefins in the presence of a solid phosphoric acid catalyst and an alkanol. As well as catalyzing the polymerization, the catalyst also catalyzes the decomposition of the alkanol into water and olefin. The water in turn replaces water lost from the catalyst during the polymerization thus maintaining a more constant phosphoric acid strength catalyst without subjecting said catalyst to excess liquid water and substantially improving overall polymerization conversions and catalyst life.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: June 8, 1982
    Assignee: Chevron Research
    Inventor: John F. Manning
  • Patent number: 4332159
    Abstract: A method and apparatus for measuring Reid Vapor Pressure, as defined in ASTM D-323 procedure, of liquid hydrocarbon materials including a totally contained system having a sample preparation portion and a measurement portion. The method and apparatus is totally automated in preparing the apparatus for measurement and in performing the measurement.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: June 1, 1982
    Assignee: Chevron Research Company
    Inventors: Thomas G. Chin, Arthur Alston
  • Patent number: 4332912
    Abstract: Sulfur cement-aggregate compositions such as sulfur cement concrete and mortars, comprising a sulfur cement and an aggregate and processes for preparing such products. The composition is characterized by the use of an expansive clay contaminated aggregate, which has been pretreated with a salt solution (e.g., KCl, CaCl.sub.2, etc.). The salt solution pretreatment substantially improves the water stability of the final sulfur cement and aggregate product.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: June 1, 1982
    Assignee: Chevron Research
    Inventor: Bradley S. Albom
  • Patent number: 4332911
    Abstract: Sulfur cement-aggregate compositions comprising a sulfur cement and an aggregate containing an expansive clay and processes for preparing such adhesives. The processes, and resulting compositions, are characterized by adding a water soluble salt to the aggregate and then admixing said aggregate-salt mixture with molten sulfur cement. The resulting solidified composition has improved water stability.The compositions can be used as mortars or concretes depending on the particle sizes of the principal aggregate component.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: June 1, 1982
    Assignee: Chevron Research
    Inventors: Edward L. Nimer, Robert W. Campbell
  • Patent number: 4332669
    Abstract: Disclosed is an improved process for retorting oil shale in a staged turbulent bed retort wherein the raw shale feed particles are classified and deaerated into first and second fractions, said first fraction containing substantially only shale particles above about 25 mesh. The first fraction is then preheated with hot shale fines in a dilute phase lift pipe prior to retorting.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: June 1, 1982
    Assignee: Chevron Research Company
    Inventors: Byron G. Spars, Paul W. Tamm, P. H. Wallman
  • Patent number: 4328766
    Abstract: A casing which is intended to resemble a scaled-down brandy barrel mounts an internal shaft on which is journaled a sleeve which mounts a leaf spring and a coiled leash which extends through a slot in the casing. The collar also mounts a drum with spaced holes in its circumference which coact with a detent finger externally operable by a button which is designed to simulate a bung plug in the barrel. The barrel loops have extended bails through which the dog's collar engages.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: May 11, 1982
    Inventor: Daniel T. Deibert
  • Patent number: 4328700
    Abstract: A method and apparatus are disclosed for detecting leaks in fluid processing systems using sulfur hexafluoride as a tracer. Leak detection can be carried out with the processing system continuing in operation by using the apparatus according to the method of the invention, so that shutting down any part of the processing system in order to check for leakage can be avoided.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: May 11, 1982
    Assignee: Chevron Research Company
    Inventor: Bernard A. Fries
  • Patent number: 4326878
    Abstract: 1,2,4-Trisubstituted-1,2,4-triazolidin-3,5-dithiones are prepared by the reaction of a 1,2,4-trisubstituted 1,2,4-triazolidin-3-one-5-thione and phosphorous pentasulfide in the liquid phase. The triazolidin-dithione compounds are useful as herbicides and plant-growth regulators.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: April 27, 1982
    Assignee: Chevron Research
    Inventor: Stephen D. Ziman
  • Patent number: 4326077
    Abstract: Novel N-haloacetylphenylamino carbonyl oximes represented by the formula ##STR1## wherein Ar is phenyl or substituted phenyl; R.sup.1 is halomethyl; R.sup.2 and R.sup.3 are each independently hydrogen, alkyl, phenyl, benzyl, substituted phenyl or benzyl, haloalkyl, cyanoalkyl, alkoxyalkyl, alkylthioalkyl or thiocyanoalkyl; R.sup.4 is hydrogen or alkyl; n is 0 or 1; m is 0 or 1; R is hydrogen, alkyl, alkenyl, alkynyl, alkylthioalkyl, haloalkyl, alkoxyalkyl, cyanoalkyl, phenyl, benzyl, substituted phenyl or benzyl, or R is acyl of the formula ##STR2## wherein R.sup.5 is hydrogen, alkyl, haloalkyl, alkoxyalkyl, alkylthioalkyl, alkoxy, alkylthio, acetonyl, or the group --NR'R" wherein R' and R" are independently hydrogen, alkyl or phenyl; with the proviso that R.sup.2 and R.sup.3 may be joined together to form a carbocyclic ring or a heterocyclic ring; or R and R.sup.2 may be joined together to form a heterocyclic ring; or R and R.sup.3 may be joined together to form a heterocyclic ring.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: April 20, 1982
    Assignee: Chevron Research Company
    Inventors: William L. Schinski, David C. K. Chan, Irene C. Huang
  • Patent number: 4318505
    Abstract: A portable suitcase is provided conviently die cut from a single sheet of material such as corrugated fiberboard and preferably scored to be foldable in a tightly locked box configuration.
    Type: Grant
    Filed: August 12, 1980
    Date of Patent: March 9, 1982
    Inventor: Charles E. Cordell, Jr.
  • Patent number: D264955
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: June 15, 1982
    Inventor: Frederick M. Johnson
  • Patent number: D265268
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: July 6, 1982
    Assignee: Stephan E. Plough
    Inventors: Stephan E. Plough, David L. Swartzendruber
  • Patent number: D265785
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: August 17, 1982
    Inventor: John M. Weiskopf