Patents Represented by Attorney Jennifer M. Hall
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Patent number: 7294607Abstract: The present invention relates to a lubricant composition exhibiting enhanced load-carrying capacity and oxidative/corrosion stability. The lubricant composition of the present invention comprises a major portion of an aliphatic ester base oil having lubrication properties and formed by the reaction of pentaerythritol and an organic carboxylic acid. The lubricant composition further comprises 3-(di-isobutoxy-thiophosphonylsulfanyl)-2-methyl-propionic acid (DITMPA) as an additive comprising from about 0.01 to about 0.40 weight percent of the fully formulated lubricating oil composition as well as yellow metal passivator comprising from about 0.01 to about 0.40 weight percent of the fully formulated lubricating oil composition. The enhanced load-carrying capacity and oxidative/corrosion stability of lubricant compositions containing DITMPA and yellow metal passivator is achieved without deleteriously affecting other salient properties of the lubricant.Type: GrantFiled: August 21, 2003Date of Patent: November 13, 2007Assignee: BP Corporation North America Inc.Inventors: Patrick E. Godici, David G. V. Jones, Kim E. Fyfe
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Patent number: 6884761Abstract: The present invention relates, generally, to a high temperature stable mixed polyol ester lubricant composition partly containing an aromatic carboxylic acid ester and a process of making the same. Typically, the aromatic acid ester is benzoic acid, and the lubricant composition preferably comprises a mixture of linear C5, i-C9, and linear C7-10 aliphatic carboxylic acid. The esters are preferably formed from an aliphatic polyol. These mixed polyol esters are useful in aero-derived gas turbine engines.Type: GrantFiled: November 25, 2002Date of Patent: April 26, 2005Assignee: BP Corporation North America Inc.Inventors: Patrick E. Godici, Jeenok T. Kim, Martin A. Krevalis, Richard H. Schlosberg
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Patent number: 6863988Abstract: Monolayer packages comprised of an oxygen scavenging composition suitable for direct contact with package contents and recycle with other polyester bottles are disclosed. The oxygen scavenging composition is comprised of a modified copolymer which is comprised of predominantly polyester segments and an oxygen scavenging amount of oxygen scavenging segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. Use of these oxygen scavenging copolymers in bottles provides a clear and rigid monolayer bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolymers of this invention are over 99 wt % PET and contain less than 50 ppb of extractable components.Type: GrantFiled: October 25, 2001Date of Patent: March 8, 2005Assignee: BP Corporation North America Inc.Inventors: James M. Tibbitt, Paul J. Cahill, George E. Rotter, David P. Sinclair, Gary T. Brooks, Raymond T. Behrends
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Patent number: 6844299Abstract: This invention generally relates to new polyol ester derivatives of polyamines for use as dispersant additives compatible in synthetic ester-based turbo oils. The dispersant additives of the present invention consist of a hydrocarbon acid, a polyol, an amine carrier such as diacid or cyclic anhydride and a polyamine. The hydrocarbon acid makes up the non-polar hydrocarbon portion of the dispersant and the polyamine functions as the polar headgroup. The diacid or cyclic anhydride provides a means for attaching the polar polyamine to the dispersant structure through an amide linkage. Different dispersant structures are obtained by varying the hydrocarbon acid, the polyol and the nature of the polyamine.Type: GrantFiled: February 20, 2003Date of Patent: January 18, 2005Assignee: BP Corporation North America Inc.Inventors: Paul W. Bessonette, Patrick E. Godici, Kim E. Fyfe, Jeenok T. Kim
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Patent number: 6789699Abstract: An apparatus for containing a fluid, said apparatus comprising (d) at least two internal chambers, (f) a fluid product line leading from each chamber to (g) a junction for product lines from at least two of said chambers to produce a mixed product, (h) means for delivering a desired ratio of fluid products in said mixed fluid product, (i) an exit line from said junction for said mixed fluid product, and (j) means for reversibly closing said exit line.Type: GrantFiled: March 12, 2003Date of Patent: September 14, 2004Assignee: BP Oil International LimitedInventors: Alisdair Quentin Clark, Harry Read
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Patent number: 6648177Abstract: A mobile fluid dispenser is provided for dispensing fluids. The mobile fluid dispenser comprises a body defining a tank, a pump mounted to the body, and wheels mounted to the body. The body comprises a tank. The wheels are configured such that the mobile fluid dispenser can be rolled on flat surfaces without being tipped from an upright position. The pump may be either electrically powered or air powered, and may be reversible to allow the tank to be filled with fluid from a remote supply source. The tank may also be filled through a fill opening formed in the body or through quick coupler.Type: GrantFiled: October 25, 2001Date of Patent: November 18, 2003Assignee: Castrol LimitedInventor: Adriano Burger
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Patent number: 6509436Abstract: Compositions for scavenging oxygen are disclosed. These compositions comprise condensation copolymers comprising predominantly polyester segments and an oxygen scavenging amount of polyolefin oligomer segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. The copolymers are preferably formed by transesterification during reactive extrusion and typically comprise about 0.5 to about 12 wt % of polyolefin oligomer segments. The copolycondensates are capable of absorbing at least 0.4 cc of oxygen per gram of copolymer in the solid state at ambient temperatures and are typically used as layers in films, liners, cups, wraps, bottles, etc. Use of these oxygen scavenging compositions in bottles provides a clear and rigid bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolycondensates of this invention are over 99.Type: GrantFiled: June 29, 2000Date of Patent: January 21, 2003Assignee: BP Corporation North America Inc.Inventors: Paul J. Cahill, Stephen Y. Chen
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Patent number: 6365257Abstract: The present invention relates to the fabrication of thick, three-dimensional preforms comprising fibers disposed as chords of a circle, and to composites comprising such structures embedded in a matrix material such as a thermoset resin, ceramic, metal or carbon. The fibrous preform structure composed of fiber disposed as chords of a circle produces a range of composite structures from isotropic orientation at the lamina level to balanced, symmetric lamina to best satisfy end use requirements. Carbon-carbon fiber composite articles produced from these chordal preforms are obtained by carbonizing such structures followed by infiltration with pyrolytic carbon using CAD processes exhibit attractive properties for high energy friction applications.Type: GrantFiled: April 14, 1999Date of Patent: April 2, 2002Assignee: BP Corporation North America Inc.Inventor: Daniel Howard Hecht
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Patent number: 6262220Abstract: Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed.Type: GrantFiled: July 31, 2000Date of Patent: July 17, 2001Assignee: BP Amoco CorporationInventors: Edward E. Paschke, Charles W. Bauer, Frank C. Robertson, James M. Tibbitt
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Patent number: 6187718Abstract: Superconducting composites comprising a high thermal conductivity carbon substrate and a layer of ceramic-type superconductor. Particularly attractive for use as a superconducting flexible conductor are composites comprising a high thermal conductivity, low resistivity carbon fiber disposed within a non-adherent sleeve layer formed of the superconducting ceramic material.Type: GrantFiled: September 14, 1994Date of Patent: February 13, 2001Assignee: BP Amoco CorporationInventor: David A. Schulz
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Patent number: 5885481Abstract: Oxygen-scavenging compositions comprising an oxidizable metal component and a solid, halogen-free, acidifying electrolyte component and, optionally, a water-absorbant binder and/or a polymeric resin exhibit good oxygen-scavenging performance and oxidation efficiency. The compositions can be used as an oxygen absorbent in packets or in combination with thermoplastic resins melt-fabricated into a wide variety of oxygen-scavenging packaging articles.Type: GrantFiled: August 12, 1997Date of Patent: March 23, 1999Assignee: Amoco CorporationInventors: Lakshmi N. Venkateshwaran, Dinesh J. Chokshi, Weilong L. Chiang
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Patent number: 5744056Abstract: Oxygen-scavenging compositions comprising an oxidizable metal component, an electrolyte component and a solid, non-electrolytic, acidifying component and, optionally, a water-absorbant binder and/or a polymeric resin exhibit good oxygen-scavenging performance with improved oxidation efficiency relative to compositions containing oxidizable metal component and either an electrolyte or acidifying component but not both. The compositions can be used as an oxygen absorbent in packets or in combination with thermoplastic resins melt-fabricated into a wide variety of oxygen-scavenging packaging articles.Type: GrantFiled: June 7, 1995Date of Patent: April 28, 1998Assignee: Amoco CorporationInventors: Lakshmi N. Venkateshwaran, Dinesh J. Chokshi, Weilong L. Chiang, Boh Chang Tsai