Patents by Inventor David Robert Mekala
David Robert Mekala 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).
-
Patent number: 9460830Abstract: A composite material includes a plurality of fibers embedded in a metal matrix. The composite material further includes a plurality of particles disposed in the metal matrix. At least 25% of the fibers contact or are spaced less than 0.2 micrometers from an adjacent fiber within the metal matrix.Type: GrantFiled: December 12, 2013Date of Patent: October 4, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: David Robert Mekala, Mark A. Wright, Jung-Sheng Wu
-
Patent number: 9431150Abstract: A composite material includes a plurality of fibers embedded in a metal matrix. The composite material further includes a plurality of particles disposed in the metal matrix. At least 25% of the fibers contact or are spaced less than 0.2 micrometers from an adjacent fiber within the metal matrix.Type: GrantFiled: December 12, 2013Date of Patent: August 30, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: David Robert Mekala, Mark A. Wright, Jung-Sheng Wu
-
Publication number: 20150318080Abstract: A composite material includes a plurality of fibers embedded in a metal matrix. The composite material further includes a plurality of particles disposed in the metal matrix. At least 25% of the fibers contact or are spaced less than 0.2 micrometers from an adjacent fiber within the metal matrix.Type: ApplicationFiled: December 12, 2013Publication date: November 5, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: David Robert Mekala, Mark A. Wright, Jung-Sheng Wu
-
Patent number: 8828620Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.Type: GrantFiled: August 30, 2012Date of Patent: September 9, 2014Assignee: 3M Innovative Properties CompanyInventors: David Robert Mekala, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
-
Publication number: 20120321986Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.Type: ApplicationFiled: August 30, 2012Publication date: December 20, 2012Inventors: David Robert Mekala, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
-
Patent number: 8268511Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.Type: GrantFiled: April 8, 2010Date of Patent: September 18, 2012Assignee: 3M Innovative Properties CompanyInventors: David Robert Mekala, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
-
Patent number: 7855160Abstract: A catalyst ink is provided, comprising: 25-95% by weight water; 1-50% by weight of at least one solid catalyst, typically a highly dispersed platinum catalyst; 1-50% by weight of at least one polymer electrolyte in acid (H+) form; and 1-50% by weight of at least one polar aprotic organic solvent. The catalyst ink typically has a viscosity at 1 sec?1 of 10 Pa·sec or less. The catalyst ink typically does not ignite spontaneously when dried to completion in air at a temperature of 80° C. or greater. The catalyst ink may be used in the fabrication of membrane electrode assemblies for use in fuel cells.Type: GrantFiled: July 21, 2010Date of Patent: December 21, 2010Assignee: 3M Innovative Properties CompanyInventors: Bhaskar V. Velamakanni, David Robert Mekala, Eric Joseph Hanson
-
Publication number: 20100285951Abstract: A catalyst ink is provided, comprising: 25-95% by weight water; 1-50% by weight of at least one solid catalyst, typically a highly dispersed platinum catalyst; 1-50% by weight of at least one polymer electrolyte in acid (H+) form; and 1-50% by weight of at least one polar aprotic organic solvent. The catalyst ink typically has a viscosity at 1 sec?1 of 10 Pa·sec or less. The catalyst ink typically does not ignite spontaneously when dried to completion in air at a temperature of 80° C. or greater. The catalyst ink may be used in the fabrication of membrane electrode assemblies for use in fuel cells.Type: ApplicationFiled: July 21, 2010Publication date: November 11, 2010Inventors: Bhaskar V. Velamakanni, David Robert Mekala, Eric Joseph Hanson
-
Publication number: 20100196796Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.Type: ApplicationFiled: April 8, 2010Publication date: August 5, 2010Inventors: David Robert MEKALA, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
-
Patent number: 7722684Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.Type: GrantFiled: February 20, 2007Date of Patent: May 25, 2010Assignee: 3M Innovative Properties CompanyInventors: David Robert Mekala, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
-
Patent number: 7195690Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.Type: GrantFiled: May 28, 2003Date of Patent: March 27, 2007Assignee: 3M Innovative Properties CompanyInventors: David Robert Mekala, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
-
Publication number: 20040241525Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.Type: ApplicationFiled: May 28, 2003Publication date: December 2, 2004Applicant: 3M Innovative Properties CompanyInventors: David Robert Mekala, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
-
Publication number: 20040107869Abstract: A catalyst ink is provided, comprising: 25-95% by weight water; 1-50% by weight of at least one solid catalyst, typically a highly dispersed platinum catalyst; 1-50% by weight of at least one polymer electrolyte in acid (H+) form; and 1-50% by weight of at least one polar aprotic organic solvent. The catalyst ink typically has a viscosity at 1 sec−1 of 10 Pa·sec or less. The catalyst ink typically does not ignite spontaneously when dried to completion in air at a temperature of 80° C. or greater. The catalyst ink may be used in the fabrication of membrane electrode assemblies for use in fuel cells.Type: ApplicationFiled: December 10, 2002Publication date: June 10, 2004Applicant: 3M Innovative Properties CompanyInventors: Bhaskar V. Velamakanni, David Robert Mekala, Eric Joseph Hanson