Patents by Inventor Gregory A. Merkel

Gregory A. Merkel 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: 8000987
    Abstract: A method includes determining a standard set of activities to perform an assessment and certification process, and identifying cost elements and cost drivers for each activity of the standard set of activities. Additionally, the method includes determining requirements for a particular assessment and certification project, and determining a cost estimation based upon at least one of the standard set of activities, the cost elements, the cost drivers, and the requirements.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: August 16, 2011
    Assignee: International Business Machines Corporation
    Inventors: Donna M. Hickey, Randy S. Johnson, Shelby J. Lassiter, Gregory Merkel
  • Patent number: 7494613
    Abstract: A diesel particulate filter comprising a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof, wherein the filter exhibits a CTE (25-800° C.) of less than 13×10?7/° C., a bulk filter density of less than 0.60 g/cm3, a median pore diameter, d50, of less than 25 micrometers, a porosity and pore size distribution that satisfy the relationship Pm?3.75, wherein Pm is equal to 10.2474{1/[(d50)2(%porosity/100)]}+0.0366183(d90)?0.00040119(d90)2+0.468815(100/%porosity)2+0.0297715(d50)+1.61639(d50?d10)/d50, wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10<d50<d90. A method of making the same is also provided.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: February 24, 2009
    Assignee: Corning Incorporated
    Inventors: Gregory A. Merkel, Tinghong Tao
  • Publication number: 20090048895
    Abstract: A method includes determining a standard set of activities to perform an assessment and certification process, and identifying cost elements and cost drivers for each activity of the standard set of activities. Additionally, the method includes determining requirements for a particular assessment and certification project, and determining a cost estimation based upon at least one of the standard set of activities, the cost elements, the cost drivers, and the requirements.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Donna M. HICKEY, Randy S. JOHNSON, Shelby J. LASSITER, Gregory MERKEL
  • Publication number: 20080032090
    Abstract: Substantially non-microcracked, porous, cordierite ceramic honeycomb bodies are provided. Although exhibiting moderately high thermal expansion (CTE) between 7×10?7 to 16×10?7/° C. (25-800° C.), the honeycomb bodies exhibit relatively high thermal shock parameter (TSP), such as TSR?525° C. by virtue of a high MOR/E ratio, and/or low Eratio=ERT/E1000° C. and well interconnected porosity, as witnessed by a relatively high pore connectivity factor (PCF). A method of manufacturing the honeycomb ceramic structure is also provided.
    Type: Application
    Filed: June 28, 2007
    Publication date: February 7, 2008
    Inventors: Douglas Beall, Isabelle Marie Melscoet-Chauvel, Gregory Merkel, Tinghong Tao, David Thompson
  • Publication number: 20080032091
    Abstract: Substantially non-microcracked, porous, cordierite ceramic honeycomb bodies are provided. Although exhibiting moderately high thermal expansion (CTE) between 7×10?7 to 16×10?7/° C. (25-800° C.), the honeycomb bodies exhibit relatively high thermal shock parameter (TSP), such as TSR?525° C. by virtue of a high MOR/E ratio, and/or low Eratio=ERT/E1000° C. and well interconnected porosity, as witnessed by a relatively high pore connectivity factor (PCF). A method of manufacturing the honeycomb ceramic structure is also provided.
    Type: Application
    Filed: June 28, 2007
    Publication date: February 7, 2008
    Inventors: Douglas Beall, Isabelle Marie Melscoet-Chauvel, Gregory Merkel, Tinghong Tao, David Thompson
  • Patent number: 7309371
    Abstract: A diesel particulate filter having a honeycomb body composed of cordierite and exhibiting a CTE (25-800° C.) of less than 13×10?7/° C.; a median pore diameter, d50, of less than 25 ?m; % porosity not less than 53%; and a narrow pore size distribution wherein a value of d50?d10)/d50 is not greater than 0.6; and a value of d90 less than 40 ?m wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10<d50<d90. The particulate filter preferably exhibits a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: December 18, 2007
    Assignee: Corning Incorporated
    Inventors: Gregory A. Merkel, Tinghong Tao
  • Patent number: 7294164
    Abstract: This invention relates to an aluminum titanate body having a narrow pore size distribution as characterized by the relation (d50?d10)/d50 being less than 0.50 corresponding to a high degree of interconnected porosity. The body also preferably exhibits a low coefficient of thermal expansion of less than 15×10?7 C?1, high porosity of at least 38% by volume, and at least 0.10% by weight metal oxide, the metal being either yttrium, calcium, bismuth, a lanthanide metal or combinations of thereof. MOR is preferably at least 450 psi. Median pore diameter is preferably at least 8 microns. The inventive ceramic body is particularly useful as a wall-flow filter for a diesel exhaust. A method of fabrication is provided where the sintering temperature is preferably between 1375°-1550° C.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: November 13, 2007
    Assignee: Corning Incorporated
    Inventor: Gregory A. Merkel
  • Publication number: 20070214759
    Abstract: This invention relates to an aluminum titanate body having a narrow pore size distribution as characterized by the relation (d50?d10)/d50 being less than 0.50 corresponding to a high degree of interconnected porosity. The body also preferably exhibits a low coefficient of thermal expansion of less than 15×10?7 C?1, high porosity of at least 38% by volume, and at least 0.10% by weight metal oxide, the metal being either yttrium, calcium, bismuth, a lanthanide metal or combinations of thereof. MOR is preferably at least 450 psi. Median pore diameter is preferably at least 8 microns. The inventive ceramic body is particularly useful as a wall-flow filter for a diesel exhaust. A method of fabrication is provided where the sintering temperature is preferably between 1375°-1550° C.
    Type: Application
    Filed: January 10, 2007
    Publication date: September 20, 2007
    Inventor: Gregory Merkel
  • Publication number: 20070119133
    Abstract: A porous cordierite ceramic honeycomb article with increased mechanical strength and thermal shock resistance. The porous cordierite ceramic honeycomb article has MA<2220, or MT>2660 wherein MA=3645 (IA)?106 (CTE)+19 (d90)+17 (% porosity), MT=4711 (IT)+116 (CTE)?26 (d90)?28 (% porosity), and a CTE?9×10?7/° C. in at least one direction. A method of manufacturing is also disclosed wherein the inorganic raw material mixture contains talc, an alumina-forming source, a silica-forming source, and 0-18 wt. % of a kaolin or calcined kaolin containing not more than 8 wt. % of a fine kaolin source having a median particle diameter of less than 7 ?m, wherein the fired porous ceramic cordierite honeycomb article has a porosity<54% . Alternatively, if greater than 8 wt. % of the fine kaolin source is used, then a slow ramp rate is utilized from 1200° C. to 1300° C. of not more than 20° C./hr.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Douglas Beall, Gregory Merkel, David Thompson
  • Publication number: 20070107398
    Abstract: A diesel particulate filter comprising a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof, wherein the filter exhibits a CTE (25-800° C.) of less than 13×10?7/° C., a bulk filter density of less than 0.60 g/cm3, a median pore diameter, d50, of less than 25 micrometers, a porosity and pore size distribution that satisfy the relationship Pm?3.75, wherein Pm is equal to 10.2474{1/[(d50)2(1/oporosity/100)]}+0.0366183(d90)?0.00040119(d90)2+0.468815(100/% porosity)2+0.0297715(d50)+1.61639(d50?d10)/d50, wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10<d50<d90. A method of making the same is also provided.
    Type: Application
    Filed: January 10, 2007
    Publication date: May 17, 2007
    Inventors: Gregory Merkel, Tinghong Tao
  • Publication number: 20070107397
    Abstract: A diesel particulate filter having a honeycomb body composed of cordierite and exhibiting a CTE (25-800° C.) of less than 13×10?7/° C.; a median pore diameter, d50, of less than 25 ?m; % porosity not less than 53%; and a narrow pore size distribution wherein a value of d50-d10)/d50 is not greater than 0.6; and a value of d90 less than 40 ?m wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10<d50<d90. The particulate filter preferably exhibits a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof.
    Type: Application
    Filed: January 10, 2007
    Publication date: May 17, 2007
    Inventors: Gregory Merkel, Tinghong Tao
  • Patent number: 7179316
    Abstract: A diesel particulate filter comprising a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof, wherein the filter exhibits a CTE (25–800° C.) of less than 13×10?7/° C., a bulk filter density of less than 0.60 g/cm3, a median pore diameter, d50, of less than 25 micrometers, a porosity and pore size distribution that satisfy the relationship Pm?3.75, wherein Pm is equal to 10.2474{1/[(d50)2(% porosity/100)]}+0.0366183(d90)?0.00040119(d90)2+0.468815(100/% porosity)2+0.0297715(d50)+1.61639(d50?d10)/d50, wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10<d50<d90. A method of making the same is also provided.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: February 20, 2007
    Assignee: Corning Incorporated
    Inventors: Gregory A. Merkel, Tinghong Tao
  • Patent number: 7141089
    Abstract: A ceramic filter for trapping and combusting diesel exhaust particulates composed of an end-plugged cordierite honeycomb structure exhibiting a pore size distribution as determined by mercury porosimetry in which the quantity d50/(d50+d90) as related to pore size distribution is less than 0.70, a soot loaded permeability factor Sf, as defined by the equation [d50/(d50+d90)]/[% porosity/100], of less than 1.55, and, a coefficient of thermal expansion (25–800° C.) of no greater than 17×10?7/° C. The ceramic filter further exhibits a median pore diameter, d50, of at least 4 micrometers and up to 40 micrometers. A method of making the filter is provided.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: November 28, 2006
    Assignee: Corning Incorporated
    Inventors: Douglas M. Beall, Gregory A. Merkel, Martin J. Murtagh
  • Publication number: 20060021309
    Abstract: This invention relates to an aluminum titanate body having a narrow pore size distribution as characterized by the relation (d50-d10)/d50 being less than 0.50 corresponding to a high degree of interconnected porosity. The body also preferably exhibits a low coefficient of thermal expansion of less than 15×10?7 C?1, high porosity of at least 38% by volume, and at least 0.10% by weight metal oxide, the metal being either yttrium, calcium, bismuth, a lanthanide metal or combinations of thereof. MOR is preferably at least 450 psi. Median pore diameter is preferably at least 8 microns. The inventive ceramic body is particularly useful as a wall-flow filter for a diesel exhaust. A method of fabrication is provided where the sintering temperature is preferably between 1375°-1550° C.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 2, 2006
    Inventor: Gregory Merkel
  • Publication number: 20060021308
    Abstract: This invention relates to a mullite-aluminum titanate body having a low coefficient of thermal expansion of less than 15×10?7 C?1, a high porosity of at least 38% by volume, a median pore diameter of at least 8 microns, and a narrow pore size distribution as characterized by the relation (d50-d10)/d50 being less than 0.50 corresponding to a high degree of interconnected porosity. The inventive ceramic body also contains at least 0.10% by weight metal oxide, the metal being either yttrium, calcium, bismuth, a lanthanide metal or combinations of thereof. The inventive ceramic body is particularly useful as a wall-flow filter for diesel exhaust. A method of fabrication is provided where the sintering temperature is between 1375°-1550° C.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 2, 2006
    Inventor: Gregory Merkel
  • Patent number: 6864198
    Abstract: A cordierite ceramic body having (i) a pore size distribution and a porosity which satisfy the relationship 10.2474/[(d50)2(pore fraction)]+0.0366183(d90)?0.00040119(d90)2+0.468815(1/pore fraction)2+0.0297715(d50)+1.61639(d50?d10)/d50?3.65, and (ii) a CTE (25°-800° C.) of ?15×10?7/° C., wherein the cordierite ceramic body is produced from a moldable mixture comprising cordierite-forming raw materials including (a) a fine talc having a median particle diameter, as measured by laser diffraction, of less than 10 micrometers, and a B.E.T. specific surface area of greater than 5 m2/g, and (b) a pore former. The cordierite ceramic body is suitable in the fabrication of cellular, wall-flow diesel particulate filters having a low pressure drop, high filtration efficiency and improved strength.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: March 8, 2005
    Assignee: Corning Incorporated
    Inventor: Gregory A. Merkel
  • Publication number: 20040261384
    Abstract: A diesel particulate filter comprising a plugged, wall-flow honeycomb filter body composed of cordierite and having a plurality of parallel end-plugged cell channels traversing the body from a frontal inlet end to an outlet end thereof, wherein the filter exhibits a CTE (25-800° C.) of less than 13×10−7/° C., a bulk filter density of less than 0.60 g/cm3, a median pore diameter, d50, of less than 25 micrometers, a porosity and pore size distribution that satisfy the relationship Pm≦3.75, wherein Pm is equal to 10.2474{1/[(d50)2(% porosity/100)]}+0.0366183(d90)−0.00040119(d90)2+0.468815(100/% porosity)2+0.0297715(d50)+1.61639(d50−d10)/d50, wherein d10, and d90 are pore diameters at 10% and 90% of the pore size distribution on a volumetric basis, and d10<d50<d90. A method of making the same is also provided.
    Type: Application
    Filed: June 25, 2003
    Publication date: December 30, 2004
    Inventors: Gregory A. Merkel, Tinghong Tao
  • Patent number: 6773657
    Abstract: A sintered ceramic that exhibits an average linear coefficient of thermal expansion (25-800° C.) below about 5.0×10−7° C.−1, a total porosity between the range of 20% to about 30%. Furthermore, the sintered ceramic article exhibits a pore size distribution such that at least about 86% of pores are of a pore size of less than about 2 &mgr;m. Lastly, the ceramic article exhibits an interconnected pore structure with the pores exhibiting a generally elongated shape, i.e., the pores are predominately oriented with their long axis in the plane of the webs. This invention also relates to a method for producing a sintered cordierite ceramic article involving first compounding and plasticizing a cordierite-forming inorganic powder batch comprising a platy talc having median particle of size less than about 2 &mgr;m, and preferably a talc morphology index greater than about 0.75.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: August 10, 2004
    Assignee: Corning Incorporated
    Inventors: Douglas M. Beall, Christopher J. Malarkey, Gregory A. Merkel
  • Publication number: 20040148916
    Abstract: A cordierite ceramic body having (i) a pore size distribution and a porosity which satisfy the relationship 10.2474/[(d50)2(pore fraction)]+0.0366183(d90)−0.00040119(d90)2+0.468815(1/pore fraction)2+0.0297715(d50)+1.61 639(d50−d10)/d50≦3.65, and (ii) a CTE (25°-800° C.) of ≦15×10−7/° C., wherein the cordierite ceramic body is produced from a moldable mixture comprising cordierite-forming raw materials including (a) a fine talc having a median particle diameter, as measured by laser diffraction, of less than 10 micrometers, and a B.E.T. specific surface area of greater than 5 m2/g, and (b) a pore former. The cordierite ceramic body is suitable in the fabrication of cellular, wall-flow diesel particulate filters having a low pressure drop, high filtration efficiency and improved strength.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 5, 2004
    Inventor: Gregory A. Merkel
  • Patent number: RE38888
    Abstract: A ceramic comprising predominately a cordierite-type phase approximating the stoichiometry Mg2Al4Si5O18 and having a coefficient of thermal expansion (25-800° C.) of greater than 4×10?7/° C. and less than 13×10?7/° C. and a permeability and a pore size distribution which satisfy the relation 2.108 (permeability)+18.511 (total pore volume)+0.1863 (percentage of total pore volume comprised of pores between 4 and 40 micrometers)>24.6. The ceramic is suitable in the fabrication of cellular, wall-flow, diesel particulate filters having a pressure drop in kPa that at an artificial carbon soot loading of 5 grams/liter and a flow rate of 26 scfm is less than 8.9-0.035 (number of cells per square inch)+300 (cell wall thickness in inches), a bulk filter density of at least 0.60 g/cm3 and a volumetric heat capacity of at least 0.67 J cm?3 K?1 as measured at 500° C.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: November 22, 2005
    Assignee: Corning Incorporated
    Inventors: Douglas M. Beall, David L. Hickman, Gregory A. Merkel