Patents by Inventor Brian Edward Williams
Brian Edward Williams 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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Publication number: 20240066175Abstract: The invention describes a method and a walk through apparatus to treat surfaces with hydroxyl ions to reduce the viability and/or kill pathogens.Type: ApplicationFiled: August 24, 2023Publication date: February 29, 2024Inventors: Robert Edward Turner, Brian Whitney Williams, Gregory A. Cox, James Spencer Alonso, Matthew M. Cox
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Patent number: 10220614Abstract: An inkjet printhead including an inkjet configured to eject drops of ink in response to receiving an electrical signal, a memory configured to store image data, and a processor operatively coupled to the inkjet and the memory. The processor receives the image data and determines a period of latency of the inkjet printhead. When the period of latency is within a predetermined timeframe, the processor increases a voltage of the electrical signal to a second voltage for an initial number of drops to eject the drops of ink in a pattern of printed ink drops with reference to at least a portion of the image data and reduce the voltage of the electrical signal after the initial number of drops to eject drops of ink in a pattern of printed ink drops with reference to a remaining portion of the image data, and generates the electrical signal.Type: GrantFiled: August 17, 2017Date of Patent: March 5, 2019Assignee: XEROX CORPORATIONInventors: Douglas Dean Darling, Reid W. Gunnell, Brian Edward Williams
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Publication number: 20190054740Abstract: An inkjet printhead including an inkjet configured to eject drops of ink in response to receiving an electrical signal, a memory configured to store image data, and a processor operatively coupled to the inkjet and the memory. The processor receives the image data and determines a period of latency of the inkjet printhead. When the period of latency is within a predetermined timeframe, the processor increases a voltage of the electrical signal to a second voltage for an initial number of drops to eject the drops of ink in a pattern of printed ink drops with reference to at least a portion of the image data and reduce the voltage of the electrical signal after the initial number of drops to eject drops of ink in a pattern of printed ink drops with reference to a remaining portion of the image data, and generates the electrical signal.Type: ApplicationFiled: August 17, 2017Publication date: February 21, 2019Inventors: DOUGLAS DEAN DARLING, REID W. GUNNELL, BRIAN EDWARD WILLIAMS
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Patent number: 9016816Abstract: A method for operating an inkjet printer includes identifying a pattern of ink drops ejected from an inkjet with reference to image data for a printed image, identifying a waveform component for an electrical signal operating the inkjet to eject an ink drop in the pattern of ink drops with reference to at least a portion of the image data, and generating the electrical signal with the identified waveform component to eject the ink drop in the pattern of ink drops at a first velocity onto a first location of an image receiving surface.Type: GrantFiled: June 10, 2013Date of Patent: April 28, 2015Assignee: Xerox CorporationInventors: Takahiro Peter Terayama, Douglas Dean Darling, Russell J. Watt, Terrance Lee Stephens, James Dudley Padgett, Daniel Mark Platt, Brian Edward Williams, Monica Louise Maestas, Kenneth Eugene Strohmeyer, Jr., David L. Knierim, John Milton Brookfield
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Publication number: 20140362135Abstract: A method for operating an inkjet printer includes identifying a pattern of ink drops ejected from an inkjet with reference to image data for a printed image, identifying a waveform component for an electrical signal operating the inkjet to eject an ink drop in the pattern of ink drops with reference to at least a portion of the image data, and generating the electrical signal with the identified waveform component to eject the ink drop in the pattern of ink drops at a first velocity onto a first location of an image receiving surface.Type: ApplicationFiled: June 10, 2013Publication date: December 11, 2014Inventors: Takahiro Peter Terayama, Douglas Dean Darling, Russell J. Watt, Terrance Lee Stephens, James Dudley Padgett, Daniel Mark Platt, Brian Edward Williams, Monica Louise Maestas, Kenneth Eugene Strohmeyer, JR., David L. Knierem, John Milton Brookfield
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Patent number: 8403440Abstract: A drop emitting device that includes a drop generator, a drive signal including a plurality of fire intervals applied to the drop generator, wherein the drive signal includes in each fire interval a bi-polar drop firing waveform or a non-firing waveform.Type: GrantFiled: February 12, 2009Date of Patent: March 26, 2013Assignee: Xerox CorporationInventors: Brian Edward Williams, Terrance Lee Stephens
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Patent number: 8317309Abstract: A system for recycling waste phase change ink in a phase change ink imaging device includes a printhead having an on-board phase change ink reservoir and a waste ink collector for receiving ink from an ejecting face of the printhead. The printhead is supplied ink from a remote ink reservoir, which is also fluidly connected to the waste ink collector by a waste phase change ink conveyor, which is configured to convey melted waste phase change ink from the waste ink collector to the remote ink reservoir.Type: GrantFiled: March 16, 2012Date of Patent: November 27, 2012Assignee: Xerox CorporationInventors: Steven Ross Slotto, Britton T. Pinson, Clifford Alan Bell, Steven Van Cleve Korol, Brian Edward Williams
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Publication number: 20120176454Abstract: A system for recycling waste phase change ink in a phase change ink imaging device includes a printhead having an on-board phase change ink reservoir and a waste ink collector for receiving ink from an ejecting face of the printhead. The printhead is supplied ink from a remote ink reservoir, which is also fluidly connected to the waste ink collector by a waste phase change ink conveyor, which is configured to convey melted waste phase change ink from the waste ink collector to the remote ink reservoir.Type: ApplicationFiled: March 16, 2012Publication date: July 12, 2012Applicant: XEROX CORPORATIONInventors: Steven Ross Slotto, Britton T. Pinson, Clifford Alan Bell, Steven Van Cleve Korol, Brian Edward Williams
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Patent number: 8162465Abstract: A system for recycling waste phase change ink in a phase change ink imaging device includes a waste ink collector positioned within a phase change ink imaging device to collect waste phase change ink produced by a printhead in the phase change ink imaging device. The waste ink collector includes a heater for heating the waste phase change ink in the collector to at least a phase change ink melting temperature. A waste phase change ink conveyor is configured to convey melted waste phase change ink from the waste ink collector to an ink reservoir for the printhead.Type: GrantFiled: November 20, 2008Date of Patent: April 24, 2012Assignee: Xerox CorporationInventors: Steven Ross Slotto, Britton T. Pinson, Clifford Alan Bell, Steven Van Cleve Korol, Brian Edward Williams
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Patent number: 8118391Abstract: A method of operating a printhead of an imaging device includes actuating a plurality of ink jets of the printhead to emit drops of ink onto an image receiving surface in accordance with a test pattern. The test pattern includes full pixel density areas and half pixel density areas that alternate in a process direction. Distances in a process direction between drops of the full pixel density areas and drops of the half pixel density areas in transition regions of the test pattern are then measured. The measured process direction distances are then correlated to a graininess level for the printhead.Type: GrantFiled: April 29, 2009Date of Patent: February 21, 2012Assignee: Xerox CorporationInventors: Trevor James Snyder, Brian Edward Williams, Susan J. Zoltner, Ernest I. Esplin, Conor D. Kelly
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Patent number: 7857432Abstract: A drop generator includes a pressure chamber and a flexible diaphragm plate disposed on the chamber and forming a wall of the pressure chamber. A piezoelectric transducer having a bottom surface is attached to the diaphragm plate. The diaphragm plate includes a recess that forms a perimeter around the bottom surface of the transducer that partially underlies at least one edge of the bottom surface. An inlet channel is connected to the pressure chamber and configured to direct ink to the pressure chamber from a manifold. An outlet channel is connected to the pressure chamber to receive ink from the pressure chamber and has a channel axis that is perpendicular to the diaphragm plate. The outlet channel includes a first outlet channel section and a second outlet channel section. The first outlet channel section includes a plurality of subsections having alternating diameters. The second outlet channel section includes an aperture disposed at an end thereof.Type: GrantFiled: February 24, 2009Date of Patent: December 28, 2010Assignee: Xerox CorporationInventors: Terrance Lee Stephens, Brian Edward Williams, John Milton Brookfield, James Dudley Padgett
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Publication number: 20100277540Abstract: A method of operating a printhead of an imaging device includes actuating a plurality of ink jets of the printhead to emit drops of ink onto an image receiving surface in accordance with a test pattern. The test pattern includes full pixel density areas and half pixel density areas that alternate in a process direction. Distances in a process direction between drops of the full pixel density areas and drops of the half pixel density areas in transition regions of the test pattern are then measured. The measured process direction distances are then correlated to a graininess level for the printhead.Type: ApplicationFiled: April 29, 2009Publication date: November 4, 2010Applicant: XEROX CORPORATIONInventors: Trevor James Snyder, Brian Edward Williams, Susan J. Zoltner, Ernest I. Esplin, Conor D. Kelly
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Publication number: 20100214374Abstract: A drop generator includes a pressure chamber and a flexible diaphragm plate disposed on the chamber and forming a wall of the pressure chamber. A piezoelectric transducer having a bottom surface is attached to the diaphragm plate. The diaphragm plate includes a recess that forms a perimeter around the bottom surface of the transducer that partially underlies at least one edge of the bottom surface. An inlet channel is connected to the pressure chamber and configured to direct ink to the pressure chamber from a manifold. An outlet channel is connected to the pressure chamber to receive ink from the pressure chamber and has a channel axis that is perpendicular to the diaphragm plate. The outlet channel includes a first outlet channel section and a second outlet channel section. The first outlet channel section includes a plurality of subsections having alternating diameters. The second outlet channel section includes an aperture disposed at an end thereof.Type: ApplicationFiled: February 24, 2009Publication date: August 26, 2010Applicant: XEROX CORPORATIONInventors: Terrance Lee Stephens, Brian Edward Williams, John Milton Brookfield, James Dudley Padgett
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Publication number: 20100201725Abstract: A drop emitting device that includes a drop generator, a drive signal including a plurality of fire intervals applied to the drop generator, wherein the drive signal includes in each fire interval a bi-polar drop firing waveform or a non-firing waveform.Type: ApplicationFiled: February 12, 2009Publication date: August 12, 2010Applicant: Xerox CorporationInventors: Brian Edward Williams, Terrance Lee Stephens
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Publication number: 20100123764Abstract: A system for recycling waste phase change ink in a phase change ink imaging device includes a waste ink collector positioned within a phase change ink imaging device to collect waste phase change ink produced by a printhead in the phase change ink imaging device. The waste ink collector includes a heater for heating the waste phase change ink in the collector to at least a phase change ink melting temperature. A waste phase change ink conveyor is configured to convey melted waste phase change ink from the waste ink collector to an ink reservoir for the printhead.Type: ApplicationFiled: November 20, 2008Publication date: May 20, 2010Applicant: XEROX CORPORATIONInventors: Steven Ross Slotto, Britton T. Pinson, Clifford Alan Bell, Steven Van Cleve Korol, Brian Edward Williams
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Patent number: 7585044Abstract: A method of adjusting an ink jet imaging device comprises measuring a drop parameter for drops generated by each drop generator in a plurality of drop generators. Each drop generator is configured to generate a drop in response to a drop generating signal having a fill portion, an eject portion, and a resonance tuning portion. A first portion of the drops are generated by each drop generator at a first fill density, and a second portion of the drops are generated by each drop generator at a second fill density. A drop parameter difference is measured for each drop generator of the plurality of drop generators of drops generated at the first and second fill densities. The resonance tuning portion of the drop generating signal for at least one drop generator is adjusted so that the drop parameter difference for the drop generator corresponds to the drop parameter difference normalization value.Type: GrantFiled: April 30, 2007Date of Patent: September 8, 2009Assignee: Xerox CorporationInventors: Brian Edward Williams, Terrance L. Stephens, Matthew Hudson Dixon
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Publication number: 20080266340Abstract: A method of adjusting an ink jet imaging device comprises measuring a drop parameter for drops generated by each drop generator in a plurality of drop generators. Each drop generator is configured to generate a drop in response to a drop generating signal having a fill portion, an eject portion, and a resonance tuning portion. A first portion of the drops are generated by each drop generator at a first fill density, and a second portion of the drops are generated by each drop generator at a second fill density. A drop parameter difference is measured for each drop generator of the plurality of drop generators of drops generated at the first and second fill densities. The resonance tuning portion of the drop generating signal for at least one drop generator is adjusted so that the drop parameter difference for the drop generator corresponds to the drop parameter difference normalization value.Type: ApplicationFiled: April 30, 2007Publication date: October 30, 2008Applicant: Xerox CorporationInventors: Brian Edward Williams, Terrance L. Stephens, Matthew Hudson Dixon