Patents by Inventor Peter Brian Logsdon
Peter Brian Logsdon 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: 7214294Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: September 16, 2004Date of Patent: May 8, 2007Assignee: Honeywell International Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Patent number: 6843934Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: November 14, 2003Date of Patent: January 18, 2005Assignee: Honeywell International Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Patent number: 6821436Abstract: A process for removing a chlorinated methane impurity from a stream comprising a halogenated compound other than the chlorinated methane impurity, the process comprising contacting the stream with a polymer adsorbent to produce a purified product stream, the polymer adsorbent having a pore size distribution characterized by a higher cumulative porosity as a function of the log of pore diameter than that of activated carbon.Type: GrantFiled: March 3, 2003Date of Patent: November 23, 2004Assignee: Honeywell International Inc.Inventors: Kane David Cook, Charles Francis Swain, Peter Brian Logsdon
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Publication number: 20040229961Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: ApplicationFiled: November 14, 2003Publication date: November 18, 2004Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Patent number: 6689822Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: October 2, 2000Date of Patent: February 10, 2004Assignee: AlliedSignal Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Publication number: 20030225177Abstract: The invention relates to integral skin foams and in particular to integral skin foams that are prepared using 1,1,1,3,3-pentafluoropropane (HFA-245fa) alone or in combination with water as the blowing agent. The foams exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in many applications including, for example, shoe soles.Type: ApplicationFiled: January 31, 2003Publication date: December 4, 2003Inventors: Peter Brian Logsdon, David John Williams, Mary Charlotte Bogdan, Kevin Donald Uhrich
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Publication number: 20030155305Abstract: A process for removing a chlorinated methane impurity from a stream comprising a halogenated compound other than the chlorinated methane impurity, the process comprising contacting the stream with a polymer adsorbent to produce a purified product stream, the polymer adsorbent having a pore size distribution characterized by a higher cumulative porosity as a function of the log of pore diameter than that of activated carbon.Type: ApplicationFiled: March 3, 2003Publication date: August 21, 2003Inventors: Kane David Cook, Charles Francis Swain, Peter Brian Logsdon
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Patent number: 6589444Abstract: The present invention relates to novel compositions of drying agents of superabsorbent polymers, molecular sieves and mixtures thereof and binders of polyurethane foam, polyisocyanurate foam and supports comprising cellulose and a method for separating, drying and/or filtering chemical mixtures. The composition and method of the invention have broad applicability. They may be used for example to remove water from chemical mixtures like refrigerants (e.g., in vehicular refrigeration systems), air (e.g., in vehicular braking systems), natural gas and cleaning solvents (e.g., used in semiconductor manufacture and pipeline cleaning).Type: GrantFiled: April 4, 2001Date of Patent: July 8, 2003Assignee: Honeywell International Inc.Inventors: Raymond Hilton Percival Thomas, Roy Philip Robinson, David John Williams, Peter Brian Logsdon
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Patent number: 6514928Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: March 15, 1999Date of Patent: February 4, 2003Assignee: AlliedSignal Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Patent number: 6500359Abstract: This invention provides compositions of 1,1,1,3,3-pentafluoropropane, water and at least one hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane and hexane that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: September 20, 2001Date of Patent: December 31, 2002Assignee: Honeywell International Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Peter Brian Logsdon, Hang Thanh Pham, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Publication number: 20020128337Abstract: The invention relates to integral skin foams and in particular to integral skin foams that are prepared using 1,1,1,3,3-pentafluoropropane (HFA-245fa) alone or in combination with water as the blowing agent. The foams exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in many applications including, for example, shoe soles.Type: ApplicationFiled: September 27, 2001Publication date: September 12, 2002Inventors: Peter Brian Logsdon, David John Williams, Mary Charlotte Bogdan, Kevin Donald Uhrich
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Patent number: 6414046Abstract: The invention relates to polyurethane and polyisocyanurate closed-cell foams. More particularly, the invention relates to polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising 1-chloro-1,2,2,2-tetrafluoroethane (HCFC-124) and 1,1-dichloro-1-fluoroethane (HCFC-141b). Foams prepared with the blowing agent of the invention possess improved thermal performance.Type: GrantFiled: September 4, 2001Date of Patent: July 2, 2002Assignee: Honeywell International Inc.Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Peter Brian Logsdon, David John Williams
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Publication number: 20020072548Abstract: The invention relates to polyurethane and polyisocyanurate closed-cell foams. More particularly, the invention relates to polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising 1-chloro-1,2,2,2-tetrafluoroethane (HCFC-124) and 1,1-dichloro-1-fluoroethane (HCFC-141b). Foams prepared with the blowing agent of the invention possess improved thermal performance.Type: ApplicationFiled: September 4, 2001Publication date: June 13, 2002Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Peter Brian Logsdon, David John Williams
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Patent number: 6355113Abstract: A non-aqueous cleaning process uses an organic solvent for removing soil or surface contamination from contaminated articles such as printed circuit boards which are cleaned by immersion into a sump compartment of a cleaning tank containing the organic cleaning solvent. The organic solvent is preferably a hydrocarbon solvent. The cleaned articles, now coated with the organic cleaning solvent, are then disposed in a rinsing sump containing a fluorocarbon based rinsing solvent having an affinity for the organic cleaning solvent. The organic solvent is thus removed from the articles which are then dried without waste water as in a conventional solvent vapor degreasing solvent process.Type: GrantFiled: November 6, 1998Date of Patent: March 12, 2002Assignee: 3M Innovative Properties CompanyInventors: David Nalewajek, Rajat Subhra Basu, David Paul Wilson, Michael Van Der Puy, Ellen Louise Swan, Peter Brian Logsdon, Gary J. Zyhowski, Hepburn Ingham, Daniel Franklin Harnish, Joel Edward Rodgers
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Patent number: 6288135Abstract: This invention provides compositions of 1,1,1,3,3-pentafluoropropane, water and at least one hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane and hexane that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: May 1, 2000Date of Patent: September 11, 2001Assignee: AlliedSignal Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Peter Brian Logsdon, Hang Thanh Pham, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Publication number: 20010014707Abstract: The present invention relates to novel compositions of drying agents of superabsorbent polymers, molecular sieves and mixtures thereof and binders of polyurethane foam, polyisocyanurate foam and supports comprising cellulose and a method for separating, drying and/or filtering chemical mixtures. The composition and method of the invention have broad applicability. They may be used for example to remove water from chemical mixtures like refrigerants (e.g., in vehicular refrigeration systems), air (e.g., in vehicular braking systems), natural gas and cleaning solvents (e.g., used in semiconductor manufacture and pipeline cleaning).Type: ApplicationFiled: April 4, 2001Publication date: August 16, 2001Inventors: Raymond Hilton Percival Thomas, Roy Philip Robinson, David John Williams, Peter Brian Logsdon
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Patent number: 6100230Abstract: This invention provides compositions of 1,1,1,3,3-pentafluoropropane, water and at least one hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane and hexane that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: March 15, 1999Date of Patent: August 8, 2000Assignee: AlliedSignal Inc.Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Peter Brian Logsdon, Hang Thanh Pham, Ronald Riegal, David John Williams, Kevin Donald Uhrich
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Patent number: 5728315Abstract: Azeotrope-like compositions of trifluoromethane, carbon dioxide, ethane, and hexafluoroethane are provided. The compositions of the invention are environmentally desirable for use as refrigerants, aerosol propellants, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: May 1, 1996Date of Patent: March 17, 1998Assignee: AlliedSignal Inc.Inventors: Rajiv Ratna Singh, Ian Robert Shankland, Roy Phillip Robinson, Hang Thanh Pham, Raymond Hilton Percival Thomas, Peter Brian Logsdon