Patents by Inventor George A. Schurr
George A. Schurr 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: 7247200Abstract: This disclosure relates to process for producing titanium dioxide (TiO2) pigments, comprising the following steps: a) oxidizing a mixture of titanium tetrahalide and a rutile forming agent, such as aluminum halide, present in the vapor phase and in the presence of a nucleant to form a gaseous suspension comprising titanium dioxide particles; b) passing the gaseous suspension to a cooling conduit; c) introducing scouring material into the cooling conduit; wherein the particles of the scouring material have a diameter in the range of about 0.25 mm to about 12.7 mm; d) separating the vapor phase to form a powder comprising the titanium dioxide particles and the scouring material; and e) simultaneously subjecting the powder to substantially uniform heating at a temperature of about 300° C. to about 600° C.Type: GrantFiled: November 1, 2005Date of Patent: July 24, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Russell Bertrum Diemer, Jr., Alan Roger Eaton, Narayanan Sankara Subramanian, Stephen William Taylor, George A. Schurr, David A Zimmerman
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Publication number: 20070095253Abstract: This disclosure relates to process for producing titanium dioxide (TiO2) pigments, comprising the following steps: a) oxidizing a mixture of titanium tetrahalide and a rutile forming agent, such as aluminum halide, present in the vapor phase and in the presence of a nucleant to form a gaseous suspension comprising titanium dioxide particles; b) passing the gaseous suspension to a cooling conduit; c) introducing scouring material into the cooling conduit; wherein the particles of the scouring material have a diameter in the range of about 0.25 mm to about 12.7 mm; d) separating the vapor phase to form a powder comprising the titanium dioxide particles and the scouring material; and e) simultaneously subjecting the powder to substantially uniform heating at a temperature of about 300° C. to about 600° C.Type: ApplicationFiled: November 1, 2005Publication date: May 3, 2007Inventors: Russell Diemer, Alan Eaton, Narayanan Subramanian, Stephen Taylor, GEORGE SCHURR, DAVID ZIMMERMAN
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Patent number: 7163708Abstract: A process for dry coating a food particle having a size in the range from about 0.5 mm to about 20.0 mm is disclosed. The resulting coated food particle has a moisture level that is substantially the same as the moisture level of the uncoated food particle. A process for encapsulating a frozen liquid particle having a size in the range from 5 micrometers to 5 millimeters with a liquid coating material is also disclosed. Also disclosed are coated food particles and encapsulate frozen liquid particles made by one of the processes of the invention.Type: GrantFiled: June 19, 2002Date of Patent: January 16, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Sean M. Dalziel, Thomas E. Friedmann, George A. Schurr
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Publication number: 20060068019Abstract: A process for coating a polyunsaturated fatty acid (PUFA)-containing carrier particle or a PUFA matrix particle, or a liquid pharmaceutical-containing carrier particle or a liquid pharmaceutical matrix particle. Also disclosed are such particles made by the process of the invention and foods, pharmaceuticals, beverages, nutritional supplements, infant formula, pet food and animal feed with incorporate such particles.Type: ApplicationFiled: August 14, 2003Publication date: March 30, 2006Inventors: Sean Dalziel, Thomas Friedmann, George Schurr
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Publication number: 20050271709Abstract: A process for coating a soy product or flour is described in which the moisture level of the coated soy product is substantially the same as the moisture level of the uncoated soy product. Coated soy products or coated flours made using the process of the invention are also disclosed.Type: ApplicationFiled: August 14, 2003Publication date: December 8, 2005Inventors: Sean Dazliel, Thomas Friedman, George Schurr
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Publication number: 20050255202Abstract: A process for encapsulating a solid food particle with a liquid encapsulating material comprising the steps of metering and encapsulation mixture (20) into a flow restrictor (14) concurrently a gas stream is introduced at inlet (22) into the flow restrictor there by atomizing the liquid encapsulating material and creating a turbulent flow zone at the outlet of the flow restrictor (14). Concomitant with metering the encapsulating material with the gas stream, solid food particulate (30) is introduced via hopper (28) to the turbulent zone at the outlet of the flow restrictor (14) wherein the solid food particles are encapsulating by the atomized encapsulating material, the encapsulated food particle inhibits environmental volatiles from diffusing into the food product while preventing oxidation of the food.Type: ApplicationFiled: August 14, 2003Publication date: November 17, 2005Inventors: Sean Dalziel, Thomas Friedmann, George Schurr
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Publication number: 20050233074Abstract: A process of manufacturing compositions comprised of carrier particles under 100 nm that have been loaded to a level of greater than 60% by weight with a liquid. The highly-liquid-loaded particles can be further coated or encapsulated with functional coating or encapsulating materials.Type: ApplicationFiled: August 14, 2003Publication date: October 20, 2005Inventors: Sean Dalziel, Prathibha Gai, Thomas Friedmann, Qian Zhao, George Schurr
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Publication number: 20050220996Abstract: A process of coating to create pharmaceutical particles is disclosed. The coating can enhance the pharmaceutical particle by providing a controlled release barrier, moisture barrier, surface modifying agent, wetting agent, flowability or fluidizing agent, hydrophobicity or hydrophilicity agent, flavor masking agent, odor masking agent, release control agent, or coloring agent; or an inert particle can be coated with a pharmaceutically active liquid. Also disclosed are coated pharmaceutical particles made by one of the processes of the invention.Type: ApplicationFiled: August 14, 2003Publication date: October 6, 2005Inventors: Larry Berger, Nutan Gangrade, Qian Zhao, Sean Dalziel, George Schurr, Thomas Friedmann, Torence Trout Jr.
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Publication number: 20040131730Abstract: A process for dry coating a food particle having a size in the range from about 0.5 mm to about 20.0 mm is disclosed. The resulting coated food particle has a moisture level that is substantially the same as the moisture level of the uncoated food particle. A process for encapsulating a frozen liquid particle having a size in the range from 5 micrometers to 5 millimeters with a liquid coating material is also disclosed. Also disclosed are coated food particles and encapsulate frozen liquid particles made by one of the processes of the invention.Type: ApplicationFiled: October 24, 2003Publication date: July 8, 2004Inventors: Sean M. Dalziel, Thomas E. Friedmann, George A. Schurr
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Patent number: 6538164Abstract: Volatile compounds may be economically recovered from solids present in aqueous solution by subjecting the solution to rapid separation where the volatilization occurs in a flash, spray, or fluid bed, or mechanically agitated dryers. Rapidly separating the solids from the volatile compound greatly simplifies the isolation of the volatile compounds from water. The methods have utility for fermentation processes, solids management, and recycling processes.Type: GrantFiled: September 28, 2000Date of Patent: March 25, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: F. Glenn Gallagher, George Schurr
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Publication number: 20030031768Abstract: A process for dry coating a food particle having a size in the range from about 0.5 mm to about 20.0 mm is disclosed. The resulting coated food particle has a moisture level that is substantially the same as the moisture level of the uncoated food particle. A process for encapsulating a frozen liquid particle having a size in the range from 5 micrometers to 5 millimeters with a liquid coating material is also disclosed. Also disclosed are coated food particles and encapsulate frozen liquid particles made by one of the processes of the invention.Type: ApplicationFiled: June 19, 2002Publication date: February 13, 2003Inventors: Sean M. Dalziel, Thomas E. Friedmann, George A. Schurr
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Patent number: 5943125Abstract: An inspection system and method uses a ring illumination apparatus to illuminate one or more reflective elements, such as solder balls on an electronic component or other protruding surfaces or objects. The ring illumination apparatus includes a substantially ring-shaped light source that provides a substantially even illumination across the one or more reflective elements. An illumination detection device detects light beams reflecting off of the illuminated reflective elements for forming a reflected image. A method of processing the reflected image includes locating one or more edges of each reflected image element representing an illuminated reflective element. The edges of the reflected image elements are located by determining the maximum intensity gradient in the pixels forming the reflected image element. The inspection system and method thereby determines various characteristics such as the absence/presence, location, pitch, size and shape of each reflective element.Type: GrantFiled: February 26, 1997Date of Patent: August 24, 1999Assignee: Acuity Imaging, LLCInventors: Steven Joseph King, Jonathan Edmund Ludlow, Jon Chouinard, George Schurr
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Patent number: 5926557Abstract: An inspection system and method uses a ring illumination apparatus to illuminate one or more reflective elements, such as solder balls on an electronic component or other protruding surfaces or objects. The ring illumination apparatus includes a substantially ring-shaped light source that provides a substantially even illumination across the one or more reflective elements. An illumination detection device detects light beams reflecting off of the illuminated reflective elements for forming a reflected image. A method of processing the reflected image includes locating one or more points on each reflected image element representing an illuminated reflective element. The points on the reflected image elements are used to located the pattern of the reflected image elements and/or to fit an outline around each image element corresponding to a known percentage of the true dimensions of each solder ball or other reflective element.Type: GrantFiled: March 26, 1997Date of Patent: July 20, 1999Assignee: Acuity Imaging, LLCInventors: Steven Joseph King, Johathan Edmund Ludlow, George Schurr
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Patent number: 5828449Abstract: An inspection system and method uses a ring illumination apparatus to illuminate one or more reflective elements, such as solder balls on an electronic component or other protruding surfaces or objects. The ring illumination apparatus includes a substantially ring-shaped light source that provides a substantially even illumination across the one or more reflective elements. An illumination detection device detects light beams reflecting off of the illuminated reflective elements for forming a reflected image. A method of processing the reflected image includes locating one or more edges of each reflected image element representing an illuminated reflective element. The edges of the reflected image elements are located by determining the maximum intensity gradient in the pixels forming the reflected image element. The inspection system and method thereby determines various characteristics such as the absence/presence, location, pitch, size and shape of each reflective element.Type: GrantFiled: July 25, 1997Date of Patent: October 27, 1998Assignee: Acuity Imaging, LLCInventors: Steven Joseph King, Jonathan Edmund Ludlow, George Schurr
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Patent number: 4430001Abstract: An apparatus and process for uniformly mixing a relatively small amount of material with a relatively large amount of another material in particulate form by introducing the smaller amount of material via a pipe within another concentric pipe through which a high pressure gas is introduced which thereby provides a zone of turbulence into which a particulate material in larger amounts is introduced, the mixture of gas and materials being transported through a treatment chamber to produce a uniform mixture.Type: GrantFiled: September 28, 1981Date of Patent: February 7, 1984Assignee: E. I. Du Pont de Nemours & Co.Inventor: George A. Schurr
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Patent number: 4303702Abstract: The flowability of fine particle size, rutile titanium dioxide is improved by uniformly mixing 0.05-2% by weight of naphthenic acid with the titanium dioxide.Type: GrantFiled: December 26, 1979Date of Patent: December 1, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventors: Raymond Bullock, Jr., Christian E. Rick, George A. Schurr