Patents by Inventor Paul Raymond Drury
Paul Raymond Drury 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: 20170100932Abstract: Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said actuator being actuable to eject a droplet of fluid from a fluid channel through a respective nozzle, a support member for said at least one droplet ejection unit, a first conduit extending along said row and to one side of both said support member and said at least one droplet ejection unit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit extending along said row and to the other side of both said support member and said at least one droplet ejection unit for receiving droplet fluid from each of the fluid channels of said at least one droplet ejection unit.Type: ApplicationFiled: July 22, 2016Publication date: April 13, 2017Inventors: Paul Raymond Drury, Angus Condie, Jerzy M. Zaba
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Patent number: 9415582Abstract: Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said actuator being actuable to eject a droplet of fluid from a fluid channel through a respective nozzle, a support member for said at least one droplet ejection unit, a first conduit extending along said row and to one side of both said support member and said at least one droplet ejection unit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit extending along said row and to the other side of both said support member and said at least one droplet ejection unit for receiving droplet fluid from each of the fluid channels of said at least one droplet ejection unit.Type: GrantFiled: June 5, 2014Date of Patent: August 16, 2016Assignee: XAAR TECHNOLOGY LIMITEDInventors: Paul Raymond Drury, Angus Condie, Jerzy M. Zaba
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Publication number: 20140285581Abstract: Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said actuator being actuable to eject a droplet of fluid from a fluid channel through a respective nozzle, a support member for said at least one droplet ejection unit, a first conduit extending along said row and to one side of both said support member and said at least one droplet ejection unit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit extending along said row and to the other side of both said support member and said at least one droplet ejection unit for receiving droplet fluid from each of the fluid channels of said at least one droplet ejection unit.Type: ApplicationFiled: June 5, 2014Publication date: September 25, 2014Inventors: Paul Raymond Drury, Angus Condie, Jerzy M. Zaba
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Patent number: 8783583Abstract: Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said actuator being actuable to eject a droplet of fluid from a fluid channel through a respective nozzle, a support member for said at least one droplet ejection unit, a first conduit extending along said row and to one side of both said support member and said at least one droplet ejection unit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit extending along said row and to the other side of both said support member and said at least one droplet ejection unit for receiving droplet fluid from each of the fluid channels of said at least one droplet ejection unit.Type: GrantFiled: January 7, 2010Date of Patent: July 22, 2014Assignee: Xaar Technology LimitedInventors: Paul Raymond Drury, Angus Condie, Jerzy M. Zaba
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Patent number: 8570604Abstract: A method for controlling the printing of overlapping swathes, the swathes extending perpendicular to a succession of print lines; for each print line a transition is defined between one swathe and the next, with the location of the transition in the print line varying between print lines, for example varying pseudo-randomly or as a curve extending in the swathe direction.Type: GrantFiled: October 3, 2007Date of Patent: October 29, 2013Assignee: Xaar Technology LimitedInventors: Julian Bane, Steve Temple, Paul Raymond Drury
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Patent number: 8567923Abstract: A method for depositing droplets onto a substrate employs an apparatus, such as an inkjet printhead, the apparatus having: an array of channels, acting as fluid chambers, separated by interspersed walls, with each channel communicating with an aperture or nozzle for the release of droplets of a fluid contained within the channel, such as ink. Each of the walls separates two neighboring channels and is actuable such that, in response to a first voltage, it will deform so as to decrease the volume of one channel and increase the volume of the other channel, and, in response to a second voltage, it will deform so as to cause the opposite effect on the volumes of the neighboring channels. The method includes the steps of: receiving input data, such as an array of image data pixels; selecting pairs of adjacent channels based on the input data; assigning the selected pairs of adjacent channels as firing channels and the remaining channels as non-firing channels.Type: GrantFiled: November 12, 2009Date of Patent: October 29, 2013Assignee: Xaar Technology LimitedInventors: Paul Raymond Drury, Julian Richard Bane, Alison Diane Morris
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Publication number: 20110261119Abstract: A method for depositing droplets onto a substrate employs an apparatus, such as an inkjet printhead, the apparatus having: an array of channels, acting as fluid chambers, separated by interspersed walls, with each channel communicating with an aperture or nozzle for the release of droplets of a fluid contained within the channel, such as ink. Each of the walls separates two neighbouring channels and is actuable such that, in response to a first voltage, it will deform so as to decrease the volume of one channel and increase the volume of the other channel, and, in response to a second voltage, it will deform so as to cause the opposite effect on the volumes of the neighbouring channels. The method includes the steps of: receiving input data, such as an array of image data pixels; selecting pairs of adjacent channels based on the input data; assigning the selected pairs of adjacent channels as firing channels and the remaining channels as non-firing channels.Type: ApplicationFiled: November 12, 2009Publication date: October 27, 2011Applicant: XAAR TECHNOLOGY LIMITEDInventors: Paul Raymond Drury, Julian Richard Bane, Alison Diane Morris
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Patent number: 7901040Abstract: In an ink jet printhead have an elongate ink chamber and a nozzle at one end, a continuous flow of ink is provided through a high impedance channel communicating with the chamber close to the nozzle. Ink is ejected through the nozzle by generating longitudinal acoustic waves in the fluid chamber. A high velocity ink flow into the chamber from the channel sweeps away from the nozzle debris or bubbles that might otherwise block the nozzle.Type: GrantFiled: July 7, 2006Date of Patent: March 8, 2011Assignee: Xaar Technology LimitedInventor: Paul Raymond Drury
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Patent number: 7780273Abstract: An actuator taking the form of a piezoelectric wall separating two chambers, which utilizes two actuation modes. Both actuation modes cause volume displacements in both chambers, but act to reinforce one another in one chamber and cancel one another in the other chamber. A fluid pump for droplet deposition having an array of channels separated by such actuators can be operated with each channel acting substantially independently of its neighbors.Type: GrantFiled: July 11, 2005Date of Patent: August 24, 2010Assignee: XAAR Technology LimitedInventors: Stephen Temple, Paul Raymond Drury
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Publication number: 20100007898Abstract: A method for controlling the printing of overlapping swathes, the swathes extending perpendicular to a succession of print lines; for each print line a transition is defined between one swathe and the next, with the location of the transition in the print line varying between print lines, for example varying pseudo-randomly or as a curve extending in the swathe direction.Type: ApplicationFiled: October 3, 2007Publication date: January 14, 2010Applicant: XAAR TECHNOLOGY LIMITEDInventors: Julian Bane, Steve Temple, Paul Raymond Drury
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Publication number: 20090128603Abstract: In an ink jet printhead have an elongate ink chamber and a nozzle at one end, a continuous flow of ink is provided through a high impedance channel communicating with the chamber close to the nozzle. Ink is ejected through the nozzle by generating longitudinal acoustic waves in the fluid chamber. A high velocity ink flow into the chamber from the channel sweeps away from the nozzle debris or bubbles that might otherwise block the nozzle.Type: ApplicationFiled: July 7, 2006Publication date: May 21, 2009Applicant: XAAR TECHNOLOGY LIMITEDInventor: Paul Raymond Drury
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Publication number: 20080204509Abstract: An ink jet printhead has a first array of actuable side walls defining channels, the actuable sidewalls being displaceable to cause a pressure change in selected channels, alternate channels in the array being firing channels; and a second array of parallel side walls offset in a channel height direction to define channel extension regions opening to a respective firing channel. A nozzle communicates with each channel extension region. The spacing between adjacent side walls in the second array is large to reduce impedance and the spacing between adjacent actuable side walls in the first array is small to provide for efficient actuation.Type: ApplicationFiled: July 11, 2006Publication date: August 28, 2008Inventor: Paul Raymond Drury
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Publication number: 20080117260Abstract: An actuator taking the form of a piezoelectric wall separating two chambers, which utilizes two actuation modes. Both actuation modes cause volume displacements in both chambers, but act to reinforce one another in one chamber and cancel one another in the other chamber. A fluid pump for droplet deposition having an array of channels separated by such actuators can be operated with each channel acting substantially independently of its neighbors.Type: ApplicationFiled: July 11, 2005Publication date: May 22, 2008Applicant: XAAR TECHNOLOGY LIMITEDInventors: Stephen Temple, Paul Raymond Drury
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Patent number: 6820966Abstract: Droplet deposition apparatus comprises a fluid chamber comprising an actuator actuable by electrical signals to effect ejection of droplets from the fluid chamber, a drive circuit for supplying the electrical signals; and a conduit for supplying droplet fluid to said fluid chamber, the drive circuit being in substantial thermal contact with the conduit so as to transfer a substantial part of the heat generated in the drive circuit to the droplet fluid.Type: GrantFiled: October 22, 1999Date of Patent: November 23, 2004Assignee: Xaar Technology LimitedInventors: Paul Raymond Drury, Robert Alan Harvey, Howard John Manning, Salhadin Omer, Stephen Temple, Jerzy Marcin Zaba