Patents by Inventor John Steven Paschkewitz
John Steven Paschkewitz 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: 11904277Abstract: A method of dispensing a graded material includes generating droplets of a first working material, the droplets having a size in the range of 10 nanometers to 10 micrometers, adding the droplets of the first working material into a carrier fluid to create a first emulsion, wherein addition of the droplets of the first working material is controlled to create gradient in the emulsion, mixing the first emulsion to create a homogenous, graded mixture, and dispensing the homogenous, graded mixture onto a surface.Type: GrantFiled: October 26, 2020Date of Patent: February 20, 2024Assignee: XEROX CORPORATIONInventors: John Steven Paschkewitz, David Mathew Johnson
-
Patent number: 11059216Abstract: A deposition system has a reservoir of a material to be deposited, the material having fibers, a print head having a mixer to generate a mixed flow of the materials having fibers, a flow focusing section arranged to cause short fibers to align inside the print head, and an outlet of the print head to allow the material to be deposited on a substrate, and a controller to actuate the print head to control an orientation of the print head relative to a substrate to cause longer fibers to align external to the print head. A deposition system includes a reservoir of a material to be deposited, the material having fibers, a print head connected to the reservoir of material by a conduit, the print head having an exit nozzle and an actuator, the actuator to control the orientation of the exit nozzle relative to a substrate.Type: GrantFiled: June 21, 2017Date of Patent: July 13, 2021Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: John Steven Paschkewitz, Gabriel Iftime, Victor Alfred Beck, David Mathew Johnson
-
Publication number: 20210039046Abstract: A method of dispensing a graded material includes generating droplets of a first working material, the droplets having a size in the range of 10 nanometers to 10 micrometers, adding the droplets of the first working material into a carrier fluid to create a first emulsion, wherein addition of the droplets of the first working material is controlled to create gradient in the emulsion, mixing the first emulsion to create a homogenous, graded mixture, and dispensing the homogenous, graded mixture onto a surface.Type: ApplicationFiled: October 26, 2020Publication date: February 11, 2021Inventors: JOHN STEVEN PASCHKEWITZ, DAVID MATHEW JOHNSON
-
Patent number: 10850236Abstract: A mixing system has a parallel droplet dispenser capable of making droplets of a first working material in the range of 10 nanometers to 10 micrometers, a pump to deliver fluid for the droplets of the first working material and to produce a first emulsion, a compact mixer having low inter-voxel mixing to receive the emulsion and produce a homogenous material, and a dispensing system. A method of dispensing a graded material includes generating droplets of a first working material, the droplets having a size in the range of 10 nanometers to 10 micrometers, adding the droplets of the first working material into a fluid to create a first emulsion, wherein addition of the droplets of the first working material is controlled to create gradient in the emulsion, mixing the first emulsion to create a homogenous, graded mixture, and dispensing the homogenous, graded mixture onto a surface.Type: GrantFiled: August 31, 2015Date of Patent: December 1, 2020Assignee: Palo Alto Research Center IncorporatedInventors: John Steven Paschkewitz, David Mathew Johnson
-
Patent number: 10744686Abstract: A system and method is provided for creating a structure including a vasculature network. A film deposition device is configured to dispense droplets onto a surface of a substrate to form a curable fugitive pre-patterned liquid film on the surface of the substrate. An electrohydrodynamic film patterning (EHD-FP) device has a patterned electrode structure formed to generate an electric field and to subject the film on the surface of the substrate to the electric field. The film thereby being formed by the EHD-FP into patterned features in response to being subjected to the electric field. Then a casting system is configured to cover the patterned features in an epoxy to form patterned structures, wherein the patterned structures comprise a fugitive vasculature structure.Type: GrantFiled: September 27, 2017Date of Patent: August 18, 2020Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David Mathew Johnson, Corie Lynn Cobb, John Steven Paschkewitz
-
Patent number: 10391706Abstract: A method of creating a three-dimensional object includes generating a spray from a fluid by stretching the fluid between two diverging surfaces into a fluid filament until the fluid filament breaks into a plurality of droplets and forms the spray, entraining the spray in a carrier gas flow, directing the carrier gas flow toward a target surface through a multi-nozzle array, and repeatedly applying the carrier gas flow on a target surface to form the three-dimensional object by controlling the direction of the carrier gas flow toward the target surface.Type: GrantFiled: June 25, 2018Date of Patent: August 27, 2019Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David Mathew Johnson, Armin R. Volkel, Victor Beck, John Steven Paschkewitz
-
Patent number: 10173365Abstract: The disclosed spray deposition systems and methods use spray charging and discharging techniques to assist with digital deposition of spray droplets on a substrate. For example, the disclosed systems and methods have a charging system that generates spray droplets from a spray generator and charges the droplets. Focusing electrodes help to collimate the droplets into a tight droplet stream and, optionally, steering electrodes help direct the tight droplet stream. A charge removal system neutralizes or removes the charge from the droplets, either during the deposition of the droplets on a substrate or after the droplets have been deposited on a substrate.Type: GrantFiled: December 20, 2017Date of Patent: January 8, 2019Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: John Steven Paschkewitz, Eric Shrader, Victor Beck
-
Patent number: 10138317Abstract: A method of forming lightweight structures from particle networks includes functionalizing edges of particles of an anisotropic material, exfoliating of the particles to form sheets of the material, aligning the sheets of material to form a network of multi-layered and aligned particles, and forming a structure out of the network of particles. One example uses graphite powder mixed into 4-aminobenzoic acid for edge functionalization, and exfoliation occurs with sonication in a solvent. The resulting particles undergo alignment with an aligning nozzle that also dispenses the aligned particles to form a structure.Type: GrantFiled: May 25, 2017Date of Patent: November 27, 2018Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Gabriel Iftime, John Steven Paschkewitz
-
Publication number: 20180297269Abstract: A method of creating a three-dimensional object includes generating a spray from a fluid by stretching the fluid between two diverging surfaces into a fluid filament until the fluid filament breaks into a plurality of droplets and forms the spray, entraining the spray in a carrier gas flow, directing the carrier gas flow toward a target surface through a multi-nozzle array, and repeatedly applying the carrier gas flow on a target surface to form the three-dimensional object by controlling the direction of the carrier gas flow toward the target surface.Type: ApplicationFiled: June 25, 2018Publication date: October 18, 2018Inventors: DAVID MATHEW JOHNSON, ARMIN R. VOLKEL, VICTOR BECK, JOHN STEVEN PASCHKEWITZ
-
Patent number: 10029416Abstract: Polymer spray deposition systems and methods are disclosed that can be used with a wide range of thermoplastic materials to produce high resolution objects having the complexity and structural integrity typically only achieved using more traditional manufacturing techniques, like injection molding processes. The polymeric spray deposition systems and methods use a spray generator that stretches the fluid between two diverging surfaces, such as two rollers or between two pistons. The stretched fluid breaks apart into a plurality of droplets and is guided through a delivery system, that can include an optional droplet size selector, and into a multi-nozzle array. The multi-nozzle array is controlled and directs the spray onto a target surface, thereby creating a three-dimensional object. The disclosed polymer spray deposition systems and methods can be used in three-dimensional print heads and printing techniques.Type: GrantFiled: January 28, 2014Date of Patent: July 24, 2018Assignee: Palo Alto Research Center IncorporatedInventors: David Mathew Johnson, Armin R. Volkel, Victor Beck, John Steven Paschkewitz
-
Publication number: 20180111312Abstract: The disclosed spray deposition systems and methods use spray charging and discharging techniques to assist with digital deposition of spray droplets on a substrate. For example, the disclosed systems and methods have a charging system that generates spray droplets from a spray generator and charges the droplets. Focusing electrodes help to collimate the droplets into a tight droplet stream and, optionally, steering electrodes help direct the tight droplet stream. A charge removal system neutralizes or removes the charge from the droplets, either during the deposition of the droplets on a substrate or after the droplets have been deposited on a substrate.Type: ApplicationFiled: December 20, 2017Publication date: April 26, 2018Inventors: JOHN STEVEN PASCHKEWITZ, ERIC SHRADER, VICTOR BECK
-
Patent number: 9884437Abstract: A system and method is provided for creating a structure including a vasculature network. A film deposition device is configured to dispense droplets onto a surface of a substrate to form a curable fugitive pre-patterned liquid film on the surface of the substrate. An electrohydrodynamic film patterning (EHD-FP) device has a patterned electrode structure formed to generate an electric field and to subject the film on the surface of the substrate to the electric field. The film thereby being formed by the EHD-FP into patterned features in response to being subjected to the electric field. Then a casting system is configured to cover the patterned features in an epoxy to form patterned structures, wherein the patterned structures comprise a fugitive vasculature structure.Type: GrantFiled: June 20, 2014Date of Patent: February 6, 2018Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David Mathew Johnson, Corie Lynn Cobb, John Steven Paschkewitz
-
Patent number: 9878493Abstract: The disclosed spray deposition systems and methods use spray charging and discharging techniques to assist with digital deposition of spray droplets on a substrate. For example, the disclosed systems and methods have a charging system that generates spray droplets from a spray generator and charges the droplets. Focusing electrodes help to collimate the droplets into a tight droplet stream and, optionally, steering electrodes help direct the tight droplet stream. A charge removal system neutralizes or removes the charge from the droplets, either during the deposition of the droplets on a substrate or after the droplets have been deposited on a substrate.Type: GrantFiled: December 17, 2014Date of Patent: January 30, 2018Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: John Steven Paschkewitz, Eric Shrader, Victor Beck
-
Publication number: 20180015644Abstract: A system and method is provided for creating a structure including a vasculature network. A film deposition device is configured to dispense droplets onto a surface of a substrate to form a curable fugitive pre-patterned liquid film on the surface of the substrate. An electrohydrodynamic film patterning (EHD-FP) device has a patterned electrode structure formed to generate an electric field and to subject the film on the surface of the substrate to the electric field. The film thereby being formed by the EHD-FP into patterned features in response to being subjected to the electric field. Then a casting system is configured to cover the patterned features in an epoxy to form patterned structures, wherein the patterned structures comprise a fugitive vasculature structure.Type: ApplicationFiled: September 27, 2017Publication date: January 18, 2018Applicant: Palo Alto Research Center IncorporatedInventors: David Mathew Johnson, Corie Lynn Cobb, John Steven Paschkewitz
-
Publication number: 20170355130Abstract: A deposition system has a reservoir of a material to be deposited, the material having fibers, a print head having a mixer to generate a mixed flow of the materials having fibers, a flow focusing section arranged to cause short fibers to align inside the print head, and an outlet of the print head to allow the material to be deposited on a substrate, and a controller to actuate the print head to control an orientation of the print head relative to a substrate to cause longer fibers to align external to the print head. A deposition system includes a reservoir of a material to be deposited, the material having fibers, a print head connected to the reservoir of material by a conduit, the print head having an exit nozzle and an actuator, the actuator to control the orientation of the exit nozzle relative to a substrate.Type: ApplicationFiled: June 21, 2017Publication date: December 14, 2017Inventors: JOHN STEVEN PASCHKEWITZ, GABRIEL IFTIME, VICTOR ALFRED BECK, DAVID MATHEW JOHNSON
-
Patent number: 9821339Abstract: A method to fabricate hierarchical graded materials includes providing a reservoir of functionalized particles, mixing at least some of the functionalized particles using a mixer in the print head having a mixed fluid volume control on an order of a voxel to produce mixed functionalized particles, and actuating a print head to deposit the mixed functionalized particles on a substrate.Type: GrantFiled: December 19, 2014Date of Patent: November 21, 2017Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: John Steven Paschkewitz, Gabriel Iftime, Victor Alfred Beck, David Mathew Johnson
-
Publication number: 20170260313Abstract: A method of forming lightweight structures from particle networks includes functionalizing edges of particles of an anisotropic material, exfoliating of the particles to form sheets of the material, aligning the sheets of material to form a network of multi-layered and aligned particles, and forming a structure out of the network of particles. One example uses graphite powder mixed into 4-aminobenzoic acid for edge functionalization, and exfoliation occurs with sonication in a solvent. The resulting particles undergo alignment with an aligning nozzle that also dispenses the aligned particles to form a structure.Type: ApplicationFiled: May 25, 2017Publication date: September 14, 2017Inventors: GABRIEL IFTIME, JOHN STEVEN PASCHKEWITZ
-
Patent number: 9718914Abstract: A method of forming lightweight structures from particle networks includes functionalizing edges of particles of an anisotropic material, exfoliating of the particles to form sheets of the material, aligning the sheets of material to form a network of multi-layered and aligned particles, and forming a structure out of the network of particles. One example uses graphite powder mixed into 4-aminobenzoic acid for edge functionalization, and exfoliation occurs with sonication in a solvent. The resulting particles undergo alignment with an aligning nozzle that also dispenses the aligned particles to form a structure.Type: GrantFiled: August 31, 2015Date of Patent: August 1, 2017Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Gabriel Iftime, John Steven Paschkewitz
-
Patent number: 9713903Abstract: A system to fabricate hierarchical graded materials includes a reservoir to contain a material to be deposited, a print head connected to the reservoir to allow the print head to receive the material to be deposited, the print head having a mixing section, and an actuator connected to the print head, the actuator configured to actuate the print head in six axes of motion.Type: GrantFiled: October 19, 2016Date of Patent: July 25, 2017Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: John Steven Paschkewitz, Gabriel Iftime, Victor Alfred Beck, David Mathew Johnson
-
Patent number: 9700869Abstract: A liquid thin film is disposed on a conveyor surface (e.g., a roller or belt) that moves the thin film into a precisely controlled gap (or nip) region in which the liquid thin film is subjected to an electric field that causes the liquid to undergo electrohydrodynamic (EHD) patterning deformation, whereby portions of the liquid thin film form patterned liquid features having a micro-scale patterned shape. A curing mechanism (e.g., a UV laser) is used to solidify (e.g., in the case of polymer thin films, cross-link) the patterned liquid inside or immediately after exiting the gap region. The patterned structures are either connected by an intervening web as part of a polymer sheet, or separated into discreet micro-scale structures. Nanostructures (e.g., nanotubes or nanowires) disposed in the polymer become vertically oriented during the EHD patterning process. Segmented electrodes and patterned charges are utilized to provide digital patterning control.Type: GrantFiled: July 17, 2013Date of Patent: July 11, 2017Assignee: Newport Fab, LLCInventors: David Mathew Johnson, Armin R. Volkel, John Steven Paschkewitz