Patents by Inventor Peter A. Walker
Peter A. Walker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9046022Abstract: A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: GrantFiled: March 6, 2014Date of Patent: June 2, 2015Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Glen Spreitzer, Andrew Peter Walker
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Patent number: 9005559Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: GrantFiled: January 20, 2014Date of Patent: April 14, 2015Assignees: Johnson Matthey Public Limited Company, Johnson Matthey Japan Godo KaishaInventors: Satoshi Sumiya, Lifeng Wang, Hanako Oyamada, Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Publication number: 20150098879Abstract: An apparatus comprising a compression ignition engine and an exhaust system therefor comprising at least one exhaust system component for treating exhaust gas and means for generating an exotherm for heating the at least one exhaust system component, which exotherm generating means consisting essentially of a catalyst and means for injecting hydrocarbon into exhaust gas for combustion on the catalyst, which catalyst consisting essentially of both a palladium (Pd) component and a platinum (Pt) component, and an optional support material, disposed on a substrate monolith.Type: ApplicationFiled: December 15, 2014Publication date: April 9, 2015Inventors: Bernard Paul Gabriel Ghislain Marie OGER, Paul Richard PHILLIPS, Martyn Vincent TWIGG, Andrew Peter WALKER
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Patent number: 8986635Abstract: Methods are disclosed for reducing or preventing a selective catalytic reduction (SCR) catalyst disposed on a first substrate monolith in an exhaust system of a lean-burn internal combustion engine from becoming poisoned with platinum group metal (PGM) which may volatilize from a catalyst composition comprising PGM disposed on at least one second substrate monolith upstream of the SCR catalyst. The methods comprise adsorbing volatilized PGM in at least one PGM trapping material, which is disposed on a third substrate monolith disposed between the first substrate monolith and the second substrate monolith.Type: GrantFiled: March 6, 2014Date of Patent: March 24, 2015Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Publication number: 20150057878Abstract: A method for determining change of direction of a vehicle includes steps of maintaining a rolling window of ABS data indicative of ABS tooth count and capturing a relevant rolling window of ABS data at the predetermined one-measurement point; storing the rolling window of the ABS data indicative of ABS tooth in a buffer; monitoring the ABS data and detecting a valid stop event which causes the rate of change of ABS tooth count to substantially decrement to zero; and monitoring the ABS data and detecting a valid move event which causes the rate of change of ABS tooth count to substantially increment from zero.Type: ApplicationFiled: November 18, 2013Publication date: February 26, 2015Applicant: Schrader Electronics Ltd.Inventors: Edward Friel, Gary Graham, Peter Walker, Alan Millen
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Publication number: 20150057876Abstract: Auto-location systems and methods of tire pressure monitoring sensor units arranged with a wheel of a vehicle detect a predetermined time (T1) when a wheel phase angle reaches angle of interest using a rim mounted or a tire mounted sensor. The systems and methods transmit a radio frequency message associated with a wheel phase angle indication. The wheel phase angle indication triggers wheel phase and/or speed data such as ABS data at the predetermined time (T1) to be stored. A correlation algorithm is executed to identify the specific location of a wheel based on the wheel phase and/or speed data at the predetermined time (T1). TPM sensor parameters from a tire pressure monitoring sensor unit are assigned to the specific location of the wheel based on a confidence interval width analysis of the ABS data at the predetermined (T1).Type: ApplicationFiled: August 22, 2013Publication date: February 26, 2015Inventors: Gary Graham, Peter Walker, Alan Millen, Steven Baird, John Greer, James Coalter
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Patent number: 8925304Abstract: An apparatus comprising a compression ignition engine and an exhaust system therefor comprising at least one exhaust system component for treating exhaust gas and means for generating an exotherm for heating the at least one exhaust system component, which exotherm generating means consisting essentially of a catalyst and means for injecting hydrocarbon into exhaust gas for combustion on the catalyst, which catalyst consisting essentially of both a palladium (Pd) component and a platinum (Pt) component, and an optional support material, disposed on a substrate monolith.Type: GrantFiled: June 19, 2012Date of Patent: January 6, 2015Assignee: Johnson Matthey Public Limited CompanyInventors: Bernard Paul Gabriel Ghislain Marie Oger, Paul Richard Phillips, Martyn Vincent Twigg, Andrew Peter Walker
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Patent number: 8811378Abstract: A computing system includes: a plurality of tightly coupled processing nodes; a plurality of circuit switched networks using a circuit switching mode, interconnecting the processing nodes, and handling data transfers that meet one or more criteria; and a plurality of electronic packet switched networks, also interconnecting the processing nodes, handling data transfers that do meet the at least one criteria. The circuit switched networks and the electronic packet switched networks operate simultaneously.Type: GrantFiled: April 11, 2012Date of Patent: August 19, 2014Assignee: International Business Machines CorporationInventors: Alan Benner, Ramakrishnan Rajamony, Eugen Schenfeld, Craig Brian Stunkel, Peter A. Walker
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Publication number: 20140186244Abstract: A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: Johnson Matthey Public Limited CompanyInventors: Philip Gerald BLAKEMAN, Gavin Michael BROWN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Raj Rao RAJARAM, Glen SPREITZER, Andrew Peter WALKER
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Publication number: 20140186245Abstract: An exhaust system 10 for a vehicular lean-burn internal combustion engine comprises: (a) a first substrate monolith 6 comprising a SCR catalyst; (b) at least one second substrate monolith 4 comprising a catalytic washcoat coating comprising at least one platinum group metal (PGM) disposed upstream of the first substrate monolith; and (c) a third substrate monolith 2 disposed between the first substrate monolith and the or each second substrate monolith, wherein at least one PGM on the or each second substrate monolith 4 is liable to volatilise when the or each second substrate monolith 4 is exposed to relatively extreme conditions including relatively high temperatures, and wherein the third substrate monolith 2 comprises a washcoat coating comprising at least one metal oxide for trapping volatilised PGM.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Philip Gerald BLAKEMAN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Raj Rao RAJARAM, Andrew Peter WALKER
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Publication number: 20140157763Abstract: An extruded honeycomb catalyst for nitrogen oxide reduction according to the selective catalytic reduction (SCR) method in exhaust gases from motor vehicles includes an extruded active carrier in honeycomb form having a first SCR catalytically active component and with a plurality of channels through which the exhaust gas flows during operation, and a washcoat coating having a second SCR catalytically active component being applied to the extruded body, wherein the first SCR catalytically active component and the second SCR catalytically active component are each independently one of: (i) vanadium catalyst with vanadium as catalytically active component; (ii) mixed-oxide catalyst with one or more oxides, in particular those of transition metals or lanthanides as catalytically active component; and (iii) an Fe- or a Cu-zeolite catalyst.Type: ApplicationFiled: July 31, 2012Publication date: June 12, 2014Applicant: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Neil Robert Collins, Ralf Dotzel, Jörg Werner Münch, Paul Richard Philips, Gudmund Smedler, Andrew Peter Walker
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Publication number: 20140130760Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: ApplicationFiled: January 20, 2014Publication date: May 15, 2014Applicants: JOHNSON MATTHEY PUBLIC LIMITED COMPANY, JOHNSON MATTHEY JAPAN G.K.Inventors: SATOSHI SUMIYA, LIFENG WANG, HANAKO OYAMADA, PHILIP GERALD BLAKEMAN, MICHAEL GAVIN BROWN, SOUGATO CHATTERJEE, ANDREW FRANCIS CHIFFEY, JANE GAST, PAUL RICHARD PHILLIPS, RAJ RAO RAJARAM, ANDREW PETER WALKER
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Patent number: 8715602Abstract: A method of reducing nitrogen oxides (NOx) in a flowing combustion exhaust gas to N2, which method comprising oxidizing nitrogen monoxide to nitrogen dioxide on a transition metal/elite catalyst at catalyst bed temperatures below 50° C. and reducing NOx with the catalyst using an hydrocarbon (HC) reductant at catalyst bed temperatures below 150° C.Type: GrantFiled: January 12, 2007Date of Patent: May 6, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Jillian Elaine Collier, Philip Gerald Blakeman, Isabel Zoe Tingay, Paul James Millington, Raj Rao Rajaram, Andrew Peter Walker
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Patent number: 8667785Abstract: A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilize when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilized PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: GrantFiled: December 11, 2012Date of Patent: March 11, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Glen Spreitzer, Andrew Peter Walker
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Patent number: 8668891Abstract: An exhaust system 10 for a vehicular lean-burn internal combustion engine comprises: (a) a first substrate monolith 6 comprising a SCR catalyst; (b) at least one second substrate monolith 4 comprising a catalytic washcoat coating comprising at least one platinum group metal (PGM) disposed upstream of the first substrate monolith; and (c) a third substrate monolith 2 disposed between the first substrate monolith and the or each second substrate monolith, wherein at least one PGM on the or each second substrate monolith 4 is liable to volatilise when the or each second substrate monolith 4 is exposed to relatively extreme conditions including relatively high temperatures, and wherein the third substrate monolith 2 comprises a washcoat coating comprising at least one metal oxide for trapping volatilised PGM.Type: GrantFiled: December 11, 2012Date of Patent: March 11, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Patent number: 8652429Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidizing catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: GrantFiled: October 5, 2012Date of Patent: February 18, 2014Assignees: Johnson Matthey Public Limited Company, Johnson Matthey Japan Godo KaishaInventors: Satoshi Sumiya, Lifeng Wang, Hanako Oyamada, Philip Gerald Blakeman, Michael Gavin Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Patent number: 8533190Abstract: The present invention relates generally to methods and systems for searching and retrieving records from a database and in particular to capturing a user's preferences to facilitate retrieval of records from the database in accordance with those preferences. The invention is suitable for use in applications in which the records retrieved from the database correspond to books, films, music or the like and it will be convenient to describe the invention in relation to that exemplary, but non-limiting, application.Type: GrantFiled: March 20, 2009Date of Patent: September 10, 2013Inventor: Peter Walker
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Publication number: 20120255283Abstract: An apparatus comprising a compression ignition engine and an exhaust system therefor comprising at least one exhaust system component for treating exhaust gas and means for generating an exotherm for heating the at least one exhaust system component, which exotherm generating means consisting essentially of a catalyst and means for injecting hydrocarbon into exhaust gas for combustion on the catalyst, which catalyst consisting essentially of both a palladium (Pd) component and a platinum (Pt) component, and an optional support material, disposed on a substrate monolith.Type: ApplicationFiled: June 19, 2012Publication date: October 11, 2012Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Bernard Paul Gabriel Ghislain Marie Oger, Paul Richard Phillips, Martyn Vincent Twigg, Andrew Peter Walker
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Publication number: 20120233985Abstract: An apparatus comprises: (i) a lean burn internal combustion engine; (ii) an exhaust system for treating a flowing exhaust gas from the engine, which system comprising: (a) a first substrate monolith comprising a NOx adsorber catalyst (NAC); and (b) a catalysed soot filter (CSF) comprising a filter substrate; and (iii) means for enriching the exhaust gas to provide an enriched exhaust gas composition intermittently during normal lean running operation for removing sulfate adsorbed on the NAC, wherein the exhaust system comprises: (c) a compound located downstream of at least some of the NAC, which compound is effective to remove and/or convert at least some hydrogen sulfide in enriched exhaust gas derived from removing sulfate adsorbed on the NAC.Type: ApplicationFiled: December 21, 2007Publication date: September 20, 2012Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Hai-Ying Chen, Howard Sherman Hess, Andrew Peter Walker
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Publication number: 20120195591Abstract: A computing system includes: a plurality of tightly coupled processing nodes; a plurality of circuit switched networks using a circuit switching mode, interconnecting the processing nodes, and handling data transfers that meet one or more criteria; and a plurality of electronic packet switched networks, also interconnecting the processing nodes, handling data transfers that do meet the at least one criteria. The circuit switched networks and the electronic packet switched networks operate simultaneously.Type: ApplicationFiled: April 11, 2012Publication date: August 2, 2012Applicant: International Business Machines CorporationInventors: Alan Benner, Ramakrishnan Rajamony, Eugen Schenfeld, Craig Brian Stunkel, Peter A. Walker