Patent
US 10,640,383APPARATUS AND METHOD FOR PREPARING GRAPHENE BY EXFOLIATION OF GRAPHITE USING A PULSED OR CAVITATING WATERJET
Wenzhuo Yan
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,640,383Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: a high-pressure water pump for generating a high-pressure flow of water; a waterjet nozzle for receiving the water and for generating a pulsed or cavitating waterjet; a graphite supply vessel having a supply duct for supplying graphite powder; an exfoliation chamber that has a first inlet for receiving the waterjet and a second inlet for receiving the graphite powder; an outlet through which a slurry is expelled from the exfoliation chamber; a filtering unit downstream of the exfoliation chamber for separating graphene from the slurry; and a graphene collection tank for collecting the graphene. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 1 wherein the exfoliation chamber comprises a flow-choking insert to create a Venturi effect to suck the graphite powder through the second inlet. Original
The apparatus as claimed in claim 1 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
The apparatus as claimed in claim 1 comprising two opposed nozzles, each nozzle having a primary exfoliation chamber, the nozzles sharing a secondary exfoliation chamber and a common outlet. Original
The apparatus as claimed in claim 1 further comprising a plurality of parallel exfoliation chambers and a plurality of parallel ultrasonically modulated nozzles driven by a common ultrasonic coupler connected to a common ultrasonic generator. Original
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.1.svg 0.16 4.87 Black and white a pressure vessel for receiving the water and providing a graphite slurry; a waterjet nozzle for receiving the graphite slurry into an exfoliation chamber incorporated within the waterjet nozzle and for exfoliating the graphite in the graphite slurry using a pulsed or cavitating waterj et generated by the waterj et nozzle; an outlet through which the graphite slurry is expelled from the water j et nozzle; a filtering unit downstream of the waterjet for separating graphene from the slurry; and SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.2.svg 0.16 3.61 Black and white Original
The apparatus as claimed in claim 8 further comprising a secondary exfoliation chamber at the exit of the waterjet nozzle. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 8 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
14-18. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene preparing apparatus (separate exfoliation chamber configuration)
No layer stack recorded.
graphene preparing apparatus (integrated nozzle-exfoliation chamber configuration)
No layer stack recorded.
Materials described outside the worked examples.
graphene
graphite powder
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
GRAPHENE NANOPLATELETS- OR GRAPHITE NANOPLATELETS-BASED NANOCOMPOSITES FOR REDUCING ELECTROMAGNETIC INTERFERENCES
METHOD OF PREPARING GRAPHENE NANOPLATE, PREPARED GRAPHENE NANOPLATE, GRAPHENE NANOPLATE PASTE, AND CONDUCTIVE LAYER INCLUDING THE GRAPHENE NANOPLATE
Patent
Atlas literature
Patent
US 10,640,383Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: a high-pressure water pump for generating a high-pressure flow of water; a waterjet nozzle for receiving the water and for generating a pulsed or cavitating waterjet; a graphite supply vessel having a supply duct for supplying graphite powder; an exfoliation chamber that has a first inlet for receiving the waterjet and a second inlet for receiving the graphite powder; an outlet through which a slurry is expelled from the exfoliation chamber; a filtering unit downstream of the exfoliation chamber for separating graphene from the slurry; and a graphene collection tank for collecting the graphene. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 1 wherein the exfoliation chamber comprises a flow-choking insert to create a Venturi effect to suck the graphite powder through the second inlet. Original
The apparatus as claimed in claim 1 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
The apparatus as claimed in claim 1 comprising two opposed nozzles, each nozzle having a primary exfoliation chamber, the nozzles sharing a secondary exfoliation chamber and a common outlet. Original
The apparatus as claimed in claim 1 further comprising a plurality of parallel exfoliation chambers and a plurality of parallel ultrasonically modulated nozzles driven by a common ultrasonic coupler connected to a common ultrasonic generator. Original
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.1.svg 0.16 4.87 Black and white a pressure vessel for receiving the water and providing a graphite slurry; a waterjet nozzle for receiving the graphite slurry into an exfoliation chamber incorporated within the waterjet nozzle and for exfoliating the graphite in the graphite slurry using a pulsed or cavitating waterj et generated by the waterj et nozzle; an outlet through which the graphite slurry is expelled from the water j et nozzle; a filtering unit downstream of the waterjet for separating graphene from the slurry; and SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.2.svg 0.16 3.61 Black and white Original
The apparatus as claimed in claim 8 further comprising a secondary exfoliation chamber at the exit of the waterjet nozzle. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 8 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
14-18. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene preparing apparatus (separate exfoliation chamber configuration)
No layer stack recorded.
graphene preparing apparatus (integrated nozzle-exfoliation chamber configuration)
No layer stack recorded.
Materials described outside the worked examples.
graphene
graphite powder
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
GRAPHENE NANOPLATELETS- OR GRAPHITE NANOPLATELETS-BASED NANOCOMPOSITES FOR REDUCING ELECTROMAGNETIC INTERFERENCES
METHOD OF PREPARING GRAPHENE NANOPLATE, PREPARED GRAPHENE NANOPLATE, GRAPHENE NANOPLATE PASTE, AND CONDUCTIVE LAYER INCLUDING THE GRAPHENE NANOPLATE
Patent
Atlas literature
Patent
US 10,640,383Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: a high-pressure water pump for generating a high-pressure flow of water; a waterjet nozzle for receiving the water and for generating a pulsed or cavitating waterjet; a graphite supply vessel having a supply duct for supplying graphite powder; an exfoliation chamber that has a first inlet for receiving the waterjet and a second inlet for receiving the graphite powder; an outlet through which a slurry is expelled from the exfoliation chamber; a filtering unit downstream of the exfoliation chamber for separating graphene from the slurry; and a graphene collection tank for collecting the graphene. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 1 wherein the exfoliation chamber comprises a flow-choking insert to create a Venturi effect to suck the graphite powder through the second inlet. Original
The apparatus as claimed in claim 1 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
The apparatus as claimed in claim 1 comprising two opposed nozzles, each nozzle having a primary exfoliation chamber, the nozzles sharing a secondary exfoliation chamber and a common outlet. Original
The apparatus as claimed in claim 1 further comprising a plurality of parallel exfoliation chambers and a plurality of parallel ultrasonically modulated nozzles driven by a common ultrasonic coupler connected to a common ultrasonic generator. Original
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.1.svg 0.16 4.87 Black and white a pressure vessel for receiving the water and providing a graphite slurry; a waterjet nozzle for receiving the graphite slurry into an exfoliation chamber incorporated within the waterjet nozzle and for exfoliating the graphite in the graphite slurry using a pulsed or cavitating waterj et generated by the waterj et nozzle; an outlet through which the graphite slurry is expelled from the water j et nozzle; a filtering unit downstream of the waterjet for separating graphene from the slurry; and SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.2.svg 0.16 3.61 Black and white Original
The apparatus as claimed in claim 8 further comprising a secondary exfoliation chamber at the exit of the waterjet nozzle. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 8 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
14-18. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene preparing apparatus (separate exfoliation chamber configuration)
No layer stack recorded.
graphene preparing apparatus (integrated nozzle-exfoliation chamber configuration)
No layer stack recorded.
Materials described outside the worked examples.
graphene
graphite powder
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
GRAPHENE NANOPLATELETS- OR GRAPHITE NANOPLATELETS-BASED NANOCOMPOSITES FOR REDUCING ELECTROMAGNETIC INTERFERENCES
METHOD OF PREPARING GRAPHENE NANOPLATE, PREPARED GRAPHENE NANOPLATE, GRAPHENE NANOPLATE PASTE, AND CONDUCTIVE LAYER INCLUDING THE GRAPHENE NANOPLATE
Patent
Atlas literature
Patent
US 10,640,383Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: a high-pressure water pump for generating a high-pressure flow of water; a waterjet nozzle for receiving the water and for generating a pulsed or cavitating waterjet; a graphite supply vessel having a supply duct for supplying graphite powder; an exfoliation chamber that has a first inlet for receiving the waterjet and a second inlet for receiving the graphite powder; an outlet through which a slurry is expelled from the exfoliation chamber; a filtering unit downstream of the exfoliation chamber for separating graphene from the slurry; and a graphene collection tank for collecting the graphene. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 1 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 1 wherein the exfoliation chamber comprises a flow-choking insert to create a Venturi effect to suck the graphite powder through the second inlet. Original
The apparatus as claimed in claim 1 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
The apparatus as claimed in claim 1 comprising two opposed nozzles, each nozzle having a primary exfoliation chamber, the nozzles sharing a secondary exfoliation chamber and a common outlet. Original
The apparatus as claimed in claim 1 further comprising a plurality of parallel exfoliation chambers and a plurality of parallel ultrasonically modulated nozzles driven by a common ultrasonic coupler connected to a common ultrasonic generator. Original
A graphene preparing apparatus for exfoliating graphite, the apparatus comprising: SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.1.svg 0.16 4.87 Black and white a pressure vessel for receiving the water and providing a graphite slurry; a waterjet nozzle for receiving the graphite slurry into an exfoliation chamber incorporated within the waterjet nozzle and for exfoliating the graphite in the graphite slurry using a pulsed or cavitating waterj et generated by the waterj et nozzle; an outlet through which the graphite slurry is expelled from the water j et nozzle; a filtering unit downstream of the waterjet for separating graphene from the slurry; and SVG 15641865.03-11-2020.K₇NII₄XURXEAPX0.CLM.2.svg 0.16 3.61 Black and white Original
The apparatus as claimed in claim 8 further comprising a secondary exfoliation chamber at the exit of the waterjet nozzle. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is an ultrasonically pulsed waterjet nozzle for generating a high-frequency pulsed waterjet. Original
The apparatus as claimed in claim 8 wherein the waterjet nozzle is a reverse-flow cavitating nozzle. Original
The apparatus as claimed in claim 8 further comprising a slurry pump disposed between the outlet and the filtering unit to pump the slurry to the filtering unit. Original
14-18. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene preparing apparatus (separate exfoliation chamber configuration)
No layer stack recorded.
graphene preparing apparatus (integrated nozzle-exfoliation chamber configuration)
No layer stack recorded.
Materials described outside the worked examples.
graphene
graphite powder
Additional fabrication and treatment steps described in the patent.
Related documents with shared materials, methods, properties, or citations.
GRAPHENE NANOPLATELETS- OR GRAPHITE NANOPLATELETS-BASED NANOCOMPOSITES FOR REDUCING ELECTROMAGNETIC INTERFERENCES
METHOD OF PREPARING GRAPHENE NANOPLATE, PREPARED GRAPHENE NANOPLATE, GRAPHENE NANOPLATE PASTE, AND CONDUCTIVE LAYER INCLUDING THE GRAPHENE NANOPLATE