Patents by Inventor Maria McDougall
Maria McDougall 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: 8672460Abstract: Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described.Type: GrantFiled: February 25, 2010Date of Patent: March 18, 2014Assignee: Xerox CorporationInventors: Armin R. Volkel, David Biegelsen, Philip D. Floyd, Greg Anderson, Fred Endicott, Eric Peeters, Jaan Noolandi, Karen A. Moffat, Peter M. Kazmaier, Maria McDougall, Daniel G. Bobrow
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Patent number: 8550604Abstract: Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described.Type: GrantFiled: February 25, 2010Date of Patent: October 8, 2013Assignee: Xerox CorporationInventors: Armin R. Volkel, David Biegelsen, Philip D. Floyd, Greg Anderson, Fred Endicott, Eric Peeters, Jaan Noolandi, Karen A. Moffat, Peter M. Kazmaier, Maria McDougall, Daniel G. Bobrow
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Patent number: 8550603Abstract: Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described.Type: GrantFiled: February 25, 2010Date of Patent: October 8, 2013Assignee: Xerox CorporationInventors: Armin R. Volkel, David Biegelsen, Philip D. Floyd, Greg Anderson, Fred Endicott, Eric Peeters, Jaan Noolandi, Karen A. Moffat, Peter M. Kazmaier, Maria McDougall, Daniel G. Bobrow
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Patent number: 8278018Abstract: In accordance with the invention, there is a method of forming a toner. The method can include blending two or more colorants to form a sample toner and forming a sample color specimen including a printed image comprising the sample toner. The method can further include comparing spectral distribution curves of the sample color specimen with that of a target color specimen including a target color and repeating the disclosed steps until acquiring a desired spectral match between the sample toner and the target color.Type: GrantFiled: March 14, 2007Date of Patent: October 2, 2012Assignee: Xerox CorporationInventors: James M. Proper, Scott Silence, Rick Veregin, Daryl Walter Vanbesien, Eric Strohm, Raj Patel, Maria McDougall
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Publication number: 20100147687Abstract: Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described.Type: ApplicationFiled: February 25, 2010Publication date: June 17, 2010Applicant: XEROX CORPORATIONInventors: Armin R. Völkel, David Biegelsen, Philip D. Floyd, Greg Anderson, Fred Endicott, Eric Peeters, Jaan Noolandi, Karen A. Moffat, Peter M. Kazmaier, Maria McDougall, Daniel G. Bobrow
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Publication number: 20100147686Abstract: Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described.Type: ApplicationFiled: February 25, 2010Publication date: June 17, 2010Applicant: XEROX CORPORATIONInventors: Armin R. Völkel, David Biegelsen, Philip D. Floyd, Greg Anderson, Fred Endicott, Eric Peeters, Jaan Noolandi, Karen A. Moffat, Peter M. Kazmaier, Maria McDougall, Daniel G. Bobrow
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Publication number: 20100147691Abstract: Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described.Type: ApplicationFiled: February 25, 2010Publication date: June 17, 2010Applicant: XEROX CORPORATIONInventors: Armin R. Völkel, David Biegelsen, Philip D. Floyd, Greg Anderson, Fred Endicott, Eric Peeters, Jaan Noolandi, Karen A. Moffat, Peter M. Kazmaier, Maria McDougall, Daniel G. Bobrow
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Patent number: 7695602Abstract: Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described.Type: GrantFiled: November 12, 2004Date of Patent: April 13, 2010Assignee: Xerox CorporationInventors: Armin R. Völkel, David Biegelsen, Philip D. Floyd, Greg Anderson, Fred Endicott, Eric Peeters, Jaan Noolandi, Karen A. Moffat, Peter M. Kazmaier, Maria McDougall, Daniel G. Bobrow
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Publication number: 20080232848Abstract: In accordance with the invention, there is a method of forming a toner. The method can include blending two or more colorants to form a sample toner and forming a sample color specimen including a printed image comprising the sample toner. The method can further include comparing spectral distribution curves of the sample color specimen with that of a target color specimen including a target color and repeating the disclosed steps until acquiring a desired spectral match between the sample toner and the target color.Type: ApplicationFiled: March 14, 2007Publication date: September 25, 2008Inventors: James M. Proper, Scott Silence, Rick Veregin, Daryl Walter Vanbesien, Eric Strohm, Raj Patel, Maria McDougall
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Publication number: 20070065745Abstract: The toner described herein contains toner particles containing polymer, colorant and cross-linked polymer. The cross-linked polymer is incorporated at least in the shell of the toner particles. Incorporating cross-linked polymer in the shell of the toner particles provide bumps in the surface of the toner particles. These bumps can behave as spacers. Such toner can be formed by aggregating at least polymer particles and colorant particles to form core particles; aggregating at least cross-linked polymer particles to the surface of the core particles; and coalescing the resulting particles to form toner particles.Type: ApplicationFiled: September 19, 2005Publication date: March 22, 2007Applicant: Xerox CorporationInventors: Paul Gerroir, Daryl Vanbesien, Vladislav Skorokhod, Maria McDougall, Eric Strohm, Edward Zwartz
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Publication number: 20070057387Abstract: Various venturi configurations are described that are particularly significant for ballistic aerosol marking (BAM) applications. The specific venturi geometries enable the printing of lines having sharp edges and particular widths, using relatively low pressures.Type: ApplicationFiled: September 13, 2005Publication date: March 15, 2007Inventors: Karen Moffat, Subajinie Sathiyavanthan, Maria McDougall, Edward Zwartz, Richard Veregin, Caroline Turek
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Publication number: 20070020554Abstract: A dual coagulant toner process comprising adding a first component comprising an ionic salt to a latex emulsion of resin having a colorant mixed therein, to form a latex emulsion; adding a second component comprising an organo-metallic aggregating agent to the latex emulsion by agitation at a temperature above a glass transition temperature of the resin, thereby forming a product mixture; subsequently cooling the product mixture to a temperature below the glass transition temperature of the resin, in order to form toner particles; and optionally, isolating the toner particles.Type: ApplicationFiled: July 25, 2005Publication date: January 25, 2007Inventors: Allan Chen, Tie Ng, Richard Veregin, Maria McDougall, Guerino Sacripante, Raj Patel
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Publication number: 20070009823Abstract: A toner composition includes toner particles of at least a resin, a wax, and a colorant, and external additives applied on an exterior surface of the toner particles, including silica, titania, and spacer particles.Type: ApplicationFiled: July 8, 2005Publication date: January 11, 2007Applicant: XEROX CORPORATIONDInventors: Vladislav Skorokhod, Maria McDougall, Wafa Bashir, Richard Veregin, Mary Schlitzer
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Publication number: 20060269858Abstract: Toner compositions comprising toner particles including additive particles upon an external surface of the toner particles, wherein the additive particles include crosslinked styrene containing polymer particles, exhibit reduced sensitivity to relative humidity. The crosslinked styrene containing polymer particles preferably have an average particle size of from about 30 nm to about 300 nm, and may comprise styrene homopolymer particles, styrene copolymer particles or mixtures thereof. A process of reducing the relative humidity sensitivity of toner using such external surface additive is also described.Type: ApplicationFiled: May 31, 2005Publication date: November 30, 2006Applicant: XEROX CORPORATIONInventors: Maria McDougall, Daryl Vanbesien, Allan Chen, Richard Veregin, Vladislav Skorokhod
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Publication number: 20060222986Abstract: A toner having at least one binder, at least one colorant and external additives. The external additives include at least one of silica and titania, and at least two metal stearates. A developer may be produced including the toner having at least two metal stearates and a carrier. An electrophotographic machine includes the toner with two metal stearates.Type: ApplicationFiled: March 31, 2005Publication date: October 5, 2006Applicant: Xerox CorporationInventors: Richard Veregin, Maria McDougall, Eric Strohm, Dwight Tshudy, Thomas Pickering
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Publication number: 20060222991Abstract: A toner composition is provided which contains a polyester resin with hydrophilic groups and hydrophobic end groups and a colorant, wherein said polyester resin is of the formula: wherein R is an alkylene group; X is an aromatic hydrocarbon; Y is selected from the group consisting of an alkali and an alkaline earth metal salt of an arylenesulfonate or an alkylenesulfonate; R? is a hydrophobic group, and m and n represent the number of random segments of from about 50 to about 300 for n, and from about 20 to about 2,000 for m, and m is less than 20 times n.Type: ApplicationFiled: March 31, 2005Publication date: October 5, 2006Inventors: Guerino Sacripante, Ke Zhou, Richard Veregin, Edward Zwartz, Maria McDougall
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Publication number: 20060166125Abstract: A carrier comprised of a core, and thereover a polymer coating containing antimony tin oxide with an average diameter of from about 5 to about 90 nanometers.Type: ApplicationFiled: January 26, 2005Publication date: July 27, 2006Inventors: Vladislav Skorokhod, Maria McDougall, Richard Veregin, Cuong Vong, Jackie Parker
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Publication number: 20060154162Abstract: Toner particles comprise resin, wax and optionally colorants, and the wax is substantially excluded from the interior core of the toner particles. Processes for preparing such toner particles comprise providing an aqueous dispersion of resin particles and optionally colorants, mixing the aqueous dispersion in presence of a coagulant, aggregating to form particles, coalescing to form fused particles, and removing the fused particles from the aqueous dispersion. Wax dispersions can be added either after mixing or during aggregation, so that wax is excluded from the core of the toner particles.Type: ApplicationFiled: January 13, 2005Publication date: July 13, 2006Applicant: XEROX CORPORATIONInventors: Ke Zhou, Enno Agur, Wafa Bashir, Maria McDougall, Emily Moore, Shigang Qiu, Vladislav Skorokhod, Daryl Vanbesien, Edward Zwartz, Joseph Bartel, Patricia Burns, T. McAneney, Richard Veregin, Paul Gerroir
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Publication number: 20060135650Abstract: Polymer particles comprising a cross-linked polymer core and a linear non-cross-linked polymer shell may be formed by emulsion polymerization. The polymer particles may be used in forming toner.Type: ApplicationFiled: December 16, 2004Publication date: June 22, 2006Applicant: XEROX CORPORATIONInventors: Karen Moffat, Daryl Vanbesien, Ke Zhou, Paul Gerroir, Valerie Farrugia, Maria McDougall, Edward Zwartz
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Publication number: 20060121384Abstract: Toner compositions include a non cross linked resin; a cross linked resin or gel; a wax; and a colorant. Processes for preparing a toner include mixing a non-cross linked resin and a cross-linked resin or gel in the presence of a wax, a colorant, and a coagulant to provide toner size aggregates; adding additional non-cross linked latex to the formed aggregates thereby providing a shell over the formed aggregates; heating the shell covered aggregates to form toner; and, optionally, isolating the toner.Type: ApplicationFiled: December 3, 2004Publication date: June 8, 2006Inventors: Raj Patel, Daryl Vanbesien, Enno Agur, Edward Zwartz, Maria McDougall, Emily Moore, Patricia Burns, Kimberly Nosella, Ke Zhou, Vladislav Skorokhod, Wafa Bashir, Shigang Qiu