Patents by Inventor George Schurr

George 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).

  • Patent number: 7247200
    Abstract: 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: Grant
    Filed: November 1, 2005
    Date of Patent: July 24, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Russell Bertrum Diemer, Jr., Alan Roger Eaton, Narayanan Sankara Subramanian, Stephen William Taylor, George A. Schurr, David A Zimmerman
  • Publication number: 20070095253
    Abstract: 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: Application
    Filed: November 1, 2005
    Publication date: May 3, 2007
    Inventors: Russell Diemer, Alan Eaton, Narayanan Subramanian, Stephen Taylor, GEORGE SCHURR, DAVID ZIMMERMAN
  • Patent number: 7163708
    Abstract: 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: Grant
    Filed: June 19, 2002
    Date of Patent: January 16, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sean M. Dalziel, Thomas E. Friedmann, George A. Schurr
  • Publication number: 20060068019
    Abstract: 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: Application
    Filed: August 14, 2003
    Publication date: March 30, 2006
    Inventors: Sean Dalziel, Thomas Friedmann, George Schurr
  • Publication number: 20050271709
    Abstract: 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: Application
    Filed: August 14, 2003
    Publication date: December 8, 2005
    Inventors: Sean Dazliel, Thomas Friedman, George Schurr
  • Publication number: 20050255202
    Abstract: 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: Application
    Filed: August 14, 2003
    Publication date: November 17, 2005
    Inventors: Sean Dalziel, Thomas Friedmann, George Schurr
  • Publication number: 20050233074
    Abstract: 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: Application
    Filed: August 14, 2003
    Publication date: October 20, 2005
    Inventors: Sean Dalziel, Prathibha Gai, Thomas Friedmann, Qian Zhao, George Schurr
  • Publication number: 20050220996
    Abstract: 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: Application
    Filed: August 14, 2003
    Publication date: October 6, 2005
    Inventors: Larry Berger, Nutan Gangrade, Qian Zhao, Sean Dalziel, George Schurr, Thomas Friedmann, Torence Trout Jr.
  • Publication number: 20040131730
    Abstract: 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: Application
    Filed: October 24, 2003
    Publication date: July 8, 2004
    Inventors: Sean M. Dalziel, Thomas E. Friedmann, George A. Schurr
  • Patent number: 6538164
    Abstract: 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: Grant
    Filed: September 28, 2000
    Date of Patent: March 25, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: F. Glenn Gallagher, George Schurr
  • Publication number: 20030031768
    Abstract: 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: Application
    Filed: June 19, 2002
    Publication date: February 13, 2003
    Inventors: Sean M. Dalziel, Thomas E. Friedmann, George A. Schurr
  • Patent number: 5943125
    Abstract: 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: Grant
    Filed: February 26, 1997
    Date of Patent: August 24, 1999
    Assignee: Acuity Imaging, LLC
    Inventors: Steven Joseph King, Jonathan Edmund Ludlow, Jon Chouinard, George Schurr
  • Patent number: 5926557
    Abstract: 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: Grant
    Filed: March 26, 1997
    Date of Patent: July 20, 1999
    Assignee: Acuity Imaging, LLC
    Inventors: Steven Joseph King, Johathan Edmund Ludlow, George Schurr
  • Patent number: 5828449
    Abstract: 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: Grant
    Filed: July 25, 1997
    Date of Patent: October 27, 1998
    Assignee: Acuity Imaging, LLC
    Inventors: Steven Joseph King, Jonathan Edmund Ludlow, George Schurr
  • Patent number: 4430001
    Abstract: 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: Grant
    Filed: September 28, 1981
    Date of Patent: February 7, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: George A. Schurr
  • Patent number: 4303702
    Abstract: 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: Grant
    Filed: December 26, 1979
    Date of Patent: December 1, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Raymond Bullock, Jr., Christian E. Rick, George A. Schurr