Patents Assigned to The British Petroleum Company Limited
  • Drilling method
    Patent number: 4137975
    Abstract: A pump is installed in a drill string above the bit and both the bit and pump are connected to the outputs of a differential gearing located therebetween. The circulation of drilling fluids is the reverse from the conventional and by operating a valve in the drill string the torque applied to the bit and pump can be controlled. Useful for drilling weak formations.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: February 6, 1979
    Assignee: The British Petroleum Company Limited
    Inventor: Michael D. Pennock
  • Apparatus for testing lubricants
    Patent number: 4133200
    Abstract: Apparatus suitable for the assessment of lubricants for the slides of machine tools, comprises a fixed slide carrier block, a moving slide block, and a drive block moving parallel to the slides at constant speed, under the action of a motor. The drive block carries a bracket with a lever which makes it possible to load the moving slide block and has a compressible elastic element to push the moving slide block. A comparator dial and an electric displacement sensor are connected to a recorder, so as to display and record the relative movements of the fixed and moving slide blocks.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: January 9, 1979
    Assignee: The British Petroleum Company Limited
    Inventor: Daniel G. Cray
  • Polymer composition
    Patent number: 4131481
    Abstract: This specification relates to foams produced from ion leachable glass and a polycarboxylic acid.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: December 26, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: Paul H. Drake, Colin J. Humphris, John E. Preedy
  • Lubricating greases
    Patent number: 4129512
    Abstract: The polyurea thickener of a polyurea grease is prepared from:(a) a mixture of aliphatic and aromatic monoamines(b) one or more aromatic di-isocyanates(c) a diamine which is 4,17-dioxaeicosandiamine-1,20 and which has the formulaH.sub.2 N--(CH.sub.2).sub.3 --O--(CH.sub.2).sub.12 --O--(CH.sub.2).sub.3 --NH.sub.
    Type: Grant
    Filed: February 8, 1978
    Date of Patent: December 12, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: Alexander W. Kisselow, Peter K. Wulk
  • Solar energy collector
    Patent number: 4129117
    Abstract: A solar energy collector comprising a transparent container containing a particulate or fibrous radiation absorbing material and having a transparent outer cover through which a heat conveying fluid can pass before passing through the container.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: December 12, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Lawrence Harvey
  • Oil separation material
    Patent number: 4129499
    Abstract: Anthracite packed oil water coalescers are treated with certain polymers, e.g. polybutene polyamines to improve their performance when dealing with sea water - oil emulsions.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: December 12, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: Roger J. R. Cairns, Joan M. Howard nee Murtagh
  • Baffle
    Patent number: 4125361
    Abstract: A burner has a flow tube along which passes a high pressure fuel gas from a Coanda nozzle at one end of the tube. The other end of the tube is divergent in the manner of a venturi in the gas flow direction. A peripheral ring is situated at the divergent outlet end which separates off the fuel gas and entrained air layer passing along the interior wall of the flow tube from the central gas flow and deflects this fuel fuel/air layer outwardly from the central gas flow.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: November 14, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Ronald L. Bourn
  • Oil control system
    Patent number: 4123911
    Abstract: Seapack. Pack which can be attached to the deck of a support vessel comprises a deflated anti-pollution boom comprising a continuous water inflatable water chamber, a driven roller which can pull the barrier aboard the vessel and cause its deflation, means to attach a first end of the barrier to the vessel, means to inflate the gas chamber and means to inflate the water chamber.
    Type: Grant
    Filed: October 14, 1977
    Date of Patent: November 7, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: Arthur Finigan, Michael G. Webb
  • Platinum group metal catalyst
    Patent number: 4122040
    Abstract: Hydrogen transfer catalyst comprises (a) as support a graphite containing carbon having (1) a basal plane surface area of at least 100 m.sup.2 /g, (2) a ratio of BET surface area to basal plane surface area of not more than 5:1 and (3) a ratio of basal plane surface area to edge surface area of at least 5:1 and (b) as active component, 0.01 to 10% by weight, of the total weight of catalyst of a platinum group metal disposed thereon. The catalyst is particularly suitable for reforming.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: October 24, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: John James McCarroll, John Trevor Kent Clark, Stephen Robert Tennison
  • Biocidal compositions
    Patent number: 4115130
    Abstract: A biocidal composition suitable for use in marine anti-fouling coatings is a water-insoluble mineral having an internal pore structure, containing, within the pores a biocidal compound effective against marine growth. Preferred minerals are zeolites, particularly synthetic faujasites, and porous silicas; preferred biocidal compounds are organo-tin compounds.The compounds may be incorporated into anti-fouling paints e.g. epoxy, epoxy-coal tar and chlorinated rubber paints or wax coatings.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: September 19, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: Ronald Alfred Crump, Colin Christopher McCain
  • Oil boom
    Patent number: 4112689
    Abstract: The air/water figure of eight cross-section boom has an additional water chamber along side the original. The extra water boom has some buoyancy due to internal small air tube and thus forms a weir. Surface oil and water collects between the two water tubes and is recovered.
    Type: Grant
    Filed: August 2, 1977
    Date of Patent: September 12, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Michael Guthrie Webb
  • Oligomerization process
    Patent number: 4112011
    Abstract: A process for producing unsaturated hydrocarbons by oligomerizing a C.sub.3 -C.sub.8 monoolefin in the presence of a gallium catalyst deposited on a support.
    Type: Grant
    Filed: June 8, 1977
    Date of Patent: September 5, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Alexander John Kolombos
  • Olefins production
    Patent number: 4111793
    Abstract: This invention relates to a method of producing olefins from a wax distillate feed by cracking the feed in the presence of steam at a catalyst temperature of between 650.degree. and 900.degree. C over a manganese catalyst.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: September 5, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: Alexander John Kolombos, Donald McNeice, Dennis Charles Wood
  • Oil-containing effluent treatment by gravity separation
    Patent number: 4105553
    Abstract: Oil-containing effluent is treated by passing it through a gravity separator and obtaining (a) a wet oil fraction, (b) an aqueous fraction of reduced oil content and (c) a wet oily sludge. Fractions (a) and (c) are then combined and passed through a pressure filter so that solids are retained and oil and water passed through. The oil and water are then passed to a separator and a reusable oil fraction is recovered and a water fraction which is returned to the gravity separator.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: August 8, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Guy F. Oldham
  • Polychloroprene-containing blends
    Patent number: 4100123
    Abstract: Blends comprising (1) a rubber component containing polychloroprene and a defined amount of EPDM, (2) hardened extract, (3) a vulcanization agent.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: July 11, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Peter Henry Westermann
  • Method of applying a layer of silica on a substrate
    Patent number: 4099990
    Abstract: Substrate surfaces are rendered resistant to coking by vaporizing an alkoxysilane in contact with the surface to form a protective layer of silica thereon.
    Type: Grant
    Filed: March 23, 1976
    Date of Patent: July 11, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: David Emmerson Brown, John Trevor Kent Clark, John James McCarroll, Malcolm Leslie Sims
  • Blends containing modified polyethylene
    Patent number: 4098739
    Abstract: A blend of chlorosulphonated polyethylene elastomer and hardened extract obtained by blowing a gas containing free oxygen at elevated temperatures into a solvent extract of petroleum vacuum distillate or a deasphalted petroleum residue which extract boils above 350.degree. C at atmospheric pressure and contains a major proportion of aromatic hydrocarbons, said hardened extract having a saturated hydrocarbon content of not more than 10% by weight. The hardened extract serves not only to extend the chlorosulfonated polyethylene, but also improves certain physical properties of sheets made from the blend.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: July 4, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Peter Henry Westermann
  • Breakwater
    Patent number: 4098086
    Abstract: Method of wave calming in which a plate rigid in the direction of wave travel is suspended in the water to be calmed. The plate has a length of one half of the incident water wavelength in the wave direction and is suspended to a still water depth of 1/5 to 1/40 of the plate beam.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: July 4, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: Denis Henry Desty, Roger Duckworth
  • Forming process
    Patent number: 4096815
    Abstract: Drawn wall ironing of metal sheets facilitated by pouring a polymer coating on at least one surface of the metal.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: June 27, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: Philip George Faulkner
  • Preparation of titanium containing catalyst on magnesium support material
    Patent number: 4097409
    Abstract: Process for the production of a supported Ziegler catalyst comprising treating a support material, obtained by heating silica with a magnesium halide or alkoxide, with a halogen containing titanium compound at a temperature below 40.degree. C.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: June 27, 1978
    Assignee: The British Petroleum Company Limited
    Inventor: John Gabriel Speakman