Patent
US 11,142,650AIR FLOW GENERATING DEVICE, GRAPHENE DISPERSION, AND PREPARATION METHOD THEREOF
Ting-Yu Wu
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 11,142,650Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. R eferring to b oth FI G. 1 and F I G. 2, a n air fl ow generating device 1 00 incl ude s an outer bushi n g 110 and a rotating awl 12 0, wherei n the …
FIG. 2 is a perspective view of th e r o tati n g awl of
FIG. 3C. M ore over, the diameter of a bottom surface 1222a of the top 1222 is equal to t h e diameter of the t op surface 1223b of the center 1223, and the …
FIG. 4 is a fl o w schematic diagram of the manufacturing m ethod of a graphen e powder. DES CRIPTI ON OF THE EMBO DIMENTS [003 6] The invention provides an air …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An air flow generating device for preparing a graphene powder, comprisin g: an outer bushing having a chamber, an intake opening, and an outtake opening, wherein the intake opening is connected to the chamber from below and the outtake opening is connected to the chamber from above, and the chamber has a necked portion; and a rotating awl disposed in the chamber, wherein the rotating awl and the chamber are conformal, the rotating awl and an inner wall of the cha m ber have a slit spacing in between, the rotating awl comprises a rotating body and a plurality of screw threads, and the plurality of screw threads are distributed on an outer surface of the rotating body from a bottom of the rotating body toward a top of the rotating body in a spiral manner, the rotating body comprises the bottom, the top, and a center located between the bottom and the top, and a diameter of the rotating body is decreased from the bottom to the top, wherein angles of the plurality of screw threads at the top, the center, and the bottom are different, when the rotating awl rotates in the chamber, an upward cyclone having a horizontal component is produced via the plurality of screw threads and the slit spacing. Currently amended
(ori g inal) The air flow generating device of claim 1, wherein a top surface of the rotating awl and a top surface of the necked portion are level. Original
The air flow generating device of claim 1, wherein a cross section of the rotating awl is stellate. Original
The air flow generating device of claim 1, wherein a rotating speed of the rotating awl is between 3000 rp m and 7000 rpm. Original
The air flow generating device of claim 1, wherein a quantity of the plurality of screw threads is between 8 and 32. Previously presented
The air flow generating device of claim 1, wherein the slit spacing is between 0.05 mm and 10 mm. Original
A preparation method of a graphene dispersion, comprising: performing a homogenization process on a graphene powder and a processing solvent to form a g r aphene paste; and perfo rm ing a layer-thinning process on the graphene paste to form a graphene dispersion, wherein the graphene powder is formed by the air flow generating device of claim 1. Withdrawn
The graphene dispersion of claim 1 8, wherein an average diameter of the graphene powder is 3 [m to 1 5 [ym. Withdrawn
The graphene dispersion of claim 1 8, wherein based on a total weight of the graphene dispersion, an amount of the graphene powder is 0.001 wt% to 30 wt%. Withdrawn
The air fl ow generating device of claim 1, wherein the angle of the plurality of screw threads located at the top is 15 to 35 degrees, the angle of the plurality of screw threads located at the bottom is 70 to 90 degrees, and the angle of the plurality of screw threads located at the center is 35 to 70 degrees New
Canceled
(Currently a m ended) The air flow generating device of claim [[3]] 1, wherein a diameter of a bottom surface of the bottom is greater than a diameter of a top surface of the bottom. Currently amended
The air flow generating device of claim 4, wherein a diameter of a bottom surface of the center is greater than a diameter of a top surface of the center, and a diameter of the bottom surface of the center is equal to the diameter of the top surface of the bottom. Original
Layer stacks claimed or described, ordered top of device to substrate.
air flow generating device
Materials described outside the worked examples.
graphene powder
graphene dispersion
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene in dispersion layer count (claim range) | 3–5 layers | graphene powder |
graphene average diameter in dispersion (claim range) | 0.5–1 μm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,142,650Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. R eferring to b oth FI G. 1 and F I G. 2, a n air fl ow generating device 1 00 incl ude s an outer bushi n g 110 and a rotating awl 12 0, wherei n the …
FIG. 2 is a perspective view of th e r o tati n g awl of
FIG. 3C. M ore over, the diameter of a bottom surface 1222a of the top 1222 is equal to t h e diameter of the t op surface 1223b of the center 1223, and the …
FIG. 4 is a fl o w schematic diagram of the manufacturing m ethod of a graphen e powder. DES CRIPTI ON OF THE EMBO DIMENTS [003 6] The invention provides an air …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An air flow generating device for preparing a graphene powder, comprisin g: an outer bushing having a chamber, an intake opening, and an outtake opening, wherein the intake opening is connected to the chamber from below and the outtake opening is connected to the chamber from above, and the chamber has a necked portion; and a rotating awl disposed in the chamber, wherein the rotating awl and the chamber are conformal, the rotating awl and an inner wall of the cha m ber have a slit spacing in between, the rotating awl comprises a rotating body and a plurality of screw threads, and the plurality of screw threads are distributed on an outer surface of the rotating body from a bottom of the rotating body toward a top of the rotating body in a spiral manner, the rotating body comprises the bottom, the top, and a center located between the bottom and the top, and a diameter of the rotating body is decreased from the bottom to the top, wherein angles of the plurality of screw threads at the top, the center, and the bottom are different, when the rotating awl rotates in the chamber, an upward cyclone having a horizontal component is produced via the plurality of screw threads and the slit spacing. Currently amended
(ori g inal) The air flow generating device of claim 1, wherein a top surface of the rotating awl and a top surface of the necked portion are level. Original
The air flow generating device of claim 1, wherein a cross section of the rotating awl is stellate. Original
The air flow generating device of claim 1, wherein a rotating speed of the rotating awl is between 3000 rp m and 7000 rpm. Original
The air flow generating device of claim 1, wherein a quantity of the plurality of screw threads is between 8 and 32. Previously presented
The air flow generating device of claim 1, wherein the slit spacing is between 0.05 mm and 10 mm. Original
A preparation method of a graphene dispersion, comprising: performing a homogenization process on a graphene powder and a processing solvent to form a g r aphene paste; and perfo rm ing a layer-thinning process on the graphene paste to form a graphene dispersion, wherein the graphene powder is formed by the air flow generating device of claim 1. Withdrawn
The graphene dispersion of claim 1 8, wherein an average diameter of the graphene powder is 3 [m to 1 5 [ym. Withdrawn
The graphene dispersion of claim 1 8, wherein based on a total weight of the graphene dispersion, an amount of the graphene powder is 0.001 wt% to 30 wt%. Withdrawn
The air fl ow generating device of claim 1, wherein the angle of the plurality of screw threads located at the top is 15 to 35 degrees, the angle of the plurality of screw threads located at the bottom is 70 to 90 degrees, and the angle of the plurality of screw threads located at the center is 35 to 70 degrees New
Canceled
(Currently a m ended) The air flow generating device of claim [[3]] 1, wherein a diameter of a bottom surface of the bottom is greater than a diameter of a top surface of the bottom. Currently amended
The air flow generating device of claim 4, wherein a diameter of a bottom surface of the center is greater than a diameter of a top surface of the center, and a diameter of the bottom surface of the center is equal to the diameter of the top surface of the bottom. Original
Layer stacks claimed or described, ordered top of device to substrate.
air flow generating device
Materials described outside the worked examples.
graphene powder
graphene dispersion
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene in dispersion layer count (claim range) | 3–5 layers | graphene powder |
graphene average diameter in dispersion (claim range) | 0.5–1 μm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,142,650Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. R eferring to b oth FI G. 1 and F I G. 2, a n air fl ow generating device 1 00 incl ude s an outer bushi n g 110 and a rotating awl 12 0, wherei n the …
FIG. 2 is a perspective view of th e r o tati n g awl of
FIG. 3C. M ore over, the diameter of a bottom surface 1222a of the top 1222 is equal to t h e diameter of the t op surface 1223b of the center 1223, and the …
FIG. 4 is a fl o w schematic diagram of the manufacturing m ethod of a graphen e powder. DES CRIPTI ON OF THE EMBO DIMENTS [003 6] The invention provides an air …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An air flow generating device for preparing a graphene powder, comprisin g: an outer bushing having a chamber, an intake opening, and an outtake opening, wherein the intake opening is connected to the chamber from below and the outtake opening is connected to the chamber from above, and the chamber has a necked portion; and a rotating awl disposed in the chamber, wherein the rotating awl and the chamber are conformal, the rotating awl and an inner wall of the cha m ber have a slit spacing in between, the rotating awl comprises a rotating body and a plurality of screw threads, and the plurality of screw threads are distributed on an outer surface of the rotating body from a bottom of the rotating body toward a top of the rotating body in a spiral manner, the rotating body comprises the bottom, the top, and a center located between the bottom and the top, and a diameter of the rotating body is decreased from the bottom to the top, wherein angles of the plurality of screw threads at the top, the center, and the bottom are different, when the rotating awl rotates in the chamber, an upward cyclone having a horizontal component is produced via the plurality of screw threads and the slit spacing. Currently amended
(ori g inal) The air flow generating device of claim 1, wherein a top surface of the rotating awl and a top surface of the necked portion are level. Original
The air flow generating device of claim 1, wherein a cross section of the rotating awl is stellate. Original
The air flow generating device of claim 1, wherein a rotating speed of the rotating awl is between 3000 rp m and 7000 rpm. Original
The air flow generating device of claim 1, wherein a quantity of the plurality of screw threads is between 8 and 32. Previously presented
The air flow generating device of claim 1, wherein the slit spacing is between 0.05 mm and 10 mm. Original
A preparation method of a graphene dispersion, comprising: performing a homogenization process on a graphene powder and a processing solvent to form a g r aphene paste; and perfo rm ing a layer-thinning process on the graphene paste to form a graphene dispersion, wherein the graphene powder is formed by the air flow generating device of claim 1. Withdrawn
The graphene dispersion of claim 1 8, wherein an average diameter of the graphene powder is 3 [m to 1 5 [ym. Withdrawn
The graphene dispersion of claim 1 8, wherein based on a total weight of the graphene dispersion, an amount of the graphene powder is 0.001 wt% to 30 wt%. Withdrawn
The air fl ow generating device of claim 1, wherein the angle of the plurality of screw threads located at the top is 15 to 35 degrees, the angle of the plurality of screw threads located at the bottom is 70 to 90 degrees, and the angle of the plurality of screw threads located at the center is 35 to 70 degrees New
Canceled
(Currently a m ended) The air flow generating device of claim [[3]] 1, wherein a diameter of a bottom surface of the bottom is greater than a diameter of a top surface of the bottom. Currently amended
The air flow generating device of claim 4, wherein a diameter of a bottom surface of the center is greater than a diameter of a top surface of the center, and a diameter of the bottom surface of the center is equal to the diameter of the top surface of the bottom. Original
Layer stacks claimed or described, ordered top of device to substrate.
air flow generating device
Materials described outside the worked examples.
graphene powder
graphene dispersion
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene in dispersion layer count (claim range) | 3–5 layers | graphene powder |
graphene average diameter in dispersion (claim range) | 0.5–1 μm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,142,650Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. R eferring to b oth FI G. 1 and F I G. 2, a n air fl ow generating device 1 00 incl ude s an outer bushi n g 110 and a rotating awl 12 0, wherei n the …
FIG. 2 is a perspective view of th e r o tati n g awl of
FIG. 3C. M ore over, the diameter of a bottom surface 1222a of the top 1222 is equal to t h e diameter of the t op surface 1223b of the center 1223, and the …
FIG. 4 is a fl o w schematic diagram of the manufacturing m ethod of a graphen e powder. DES CRIPTI ON OF THE EMBO DIMENTS [003 6] The invention provides an air …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An air flow generating device for preparing a graphene powder, comprisin g: an outer bushing having a chamber, an intake opening, and an outtake opening, wherein the intake opening is connected to the chamber from below and the outtake opening is connected to the chamber from above, and the chamber has a necked portion; and a rotating awl disposed in the chamber, wherein the rotating awl and the chamber are conformal, the rotating awl and an inner wall of the cha m ber have a slit spacing in between, the rotating awl comprises a rotating body and a plurality of screw threads, and the plurality of screw threads are distributed on an outer surface of the rotating body from a bottom of the rotating body toward a top of the rotating body in a spiral manner, the rotating body comprises the bottom, the top, and a center located between the bottom and the top, and a diameter of the rotating body is decreased from the bottom to the top, wherein angles of the plurality of screw threads at the top, the center, and the bottom are different, when the rotating awl rotates in the chamber, an upward cyclone having a horizontal component is produced via the plurality of screw threads and the slit spacing. Currently amended
(ori g inal) The air flow generating device of claim 1, wherein a top surface of the rotating awl and a top surface of the necked portion are level. Original
The air flow generating device of claim 1, wherein a cross section of the rotating awl is stellate. Original
The air flow generating device of claim 1, wherein a rotating speed of the rotating awl is between 3000 rp m and 7000 rpm. Original
The air flow generating device of claim 1, wherein a quantity of the plurality of screw threads is between 8 and 32. Previously presented
The air flow generating device of claim 1, wherein the slit spacing is between 0.05 mm and 10 mm. Original
A preparation method of a graphene dispersion, comprising: performing a homogenization process on a graphene powder and a processing solvent to form a g r aphene paste; and perfo rm ing a layer-thinning process on the graphene paste to form a graphene dispersion, wherein the graphene powder is formed by the air flow generating device of claim 1. Withdrawn
The graphene dispersion of claim 1 8, wherein an average diameter of the graphene powder is 3 [m to 1 5 [ym. Withdrawn
The graphene dispersion of claim 1 8, wherein based on a total weight of the graphene dispersion, an amount of the graphene powder is 0.001 wt% to 30 wt%. Withdrawn
The air fl ow generating device of claim 1, wherein the angle of the plurality of screw threads located at the top is 15 to 35 degrees, the angle of the plurality of screw threads located at the bottom is 70 to 90 degrees, and the angle of the plurality of screw threads located at the center is 35 to 70 degrees New
Canceled
(Currently a m ended) The air flow generating device of claim [[3]] 1, wherein a diameter of a bottom surface of the bottom is greater than a diameter of a top surface of the bottom. Currently amended
The air flow generating device of claim 4, wherein a diameter of a bottom surface of the center is greater than a diameter of a top surface of the center, and a diameter of the bottom surface of the center is equal to the diameter of the top surface of the bottom. Original
Layer stacks claimed or described, ordered top of device to substrate.
air flow generating device
Materials described outside the worked examples.
graphene powder
graphene dispersion
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene in dispersion layer count (claim range) | 3–5 layers | graphene powder |
graphene average diameter in dispersion (claim range) | 0.5–1 μm |
Related documents with shared materials, methods, properties, or citations.
processing solvent
graphite precursor
graphene residue oxygen content in dispersion (claim upper bound) | ≤ 1 wt% | graphene powder |
graphene dispersion viscosity (claim range) | 5000–8000 cps | graphene dispersion |
graphene dispersion graphene concentration (claim value) | 20 wt% | graphene dispersion |
graphene powder layer count (claim range) | 5–10 layers | graphene powder |
graphene powder average diameter (claim range) | 3–15 μm | graphene powder |
graphene powder residue oxygen content (claim upper bound) | ≤ 0.1 wt% | graphene powder |
intercalation spacing in graphite precursor (claim range) | 3.44–3.6 Å | graphite precursor |
Thickness | 0.05–10 mm | — |
Pressure | 5–15 MPa | — |
Pressure | 5–5.5 MPa | — |
Pressure | 5–9 MPa | — |
Pressure | 5–7 MPa | — |
Thickness | 0.1–1 mm | — |
Thickness | 4.5–5 nm | — |
Thickness | 0–2 nm | — |
Pressure | 0–9 MPa | — |
processing solvent
graphite precursor
graphene residue oxygen content in dispersion (claim upper bound) | ≤ 1 wt% | graphene powder |
graphene dispersion viscosity (claim range) | 5000–8000 cps | graphene dispersion |
graphene dispersion graphene concentration (claim value) | 20 wt% | graphene dispersion |
graphene powder layer count (claim range) | 5–10 layers | graphene powder |
graphene powder average diameter (claim range) | 3–15 μm | graphene powder |
graphene powder residue oxygen content (claim upper bound) | ≤ 0.1 wt% | graphene powder |
intercalation spacing in graphite precursor (claim range) | 3.44–3.6 Å | graphite precursor |
Thickness | 0.05–10 mm | — |
Pressure | 5–15 MPa | — |
Pressure | 5–5.5 MPa | — |
Pressure | 5–9 MPa | — |
Pressure | 5–7 MPa | — |
Thickness | 0.1–1 mm | — |
Thickness | 4.5–5 nm | — |
Thickness | 0–2 nm | — |
Pressure | 0–9 MPa | — |
processing solvent
graphite precursor
graphene residue oxygen content in dispersion (claim upper bound) | ≤ 1 wt% | graphene powder |
graphene dispersion viscosity (claim range) | 5000–8000 cps | graphene dispersion |
graphene dispersion graphene concentration (claim value) | 20 wt% | graphene dispersion |
graphene powder layer count (claim range) | 5–10 layers | graphene powder |
graphene powder average diameter (claim range) | 3–15 μm | graphene powder |
graphene powder residue oxygen content (claim upper bound) | ≤ 0.1 wt% | graphene powder |
intercalation spacing in graphite precursor (claim range) | 3.44–3.6 Å | graphite precursor |
Thickness | 0.05–10 mm | — |
Pressure | 5–15 MPa | — |
Pressure | 5–5.5 MPa | — |
Pressure | 5–9 MPa | — |
Pressure | 5–7 MPa | — |
Thickness | 0.1–1 mm | — |
Thickness | 4.5–5 nm | — |
Thickness | 0–2 nm | — |
Pressure | 0–9 MPa | — |
processing solvent
graphite precursor
graphene residue oxygen content in dispersion (claim upper bound) | ≤ 1 wt% | graphene powder |
graphene dispersion viscosity (claim range) | 5000–8000 cps | graphene dispersion |
graphene dispersion graphene concentration (claim value) | 20 wt% | graphene dispersion |
graphene powder layer count (claim range) | 5–10 layers | graphene powder |
graphene powder average diameter (claim range) | 3–15 μm | graphene powder |
graphene powder residue oxygen content (claim upper bound) | ≤ 0.1 wt% | graphene powder |
intercalation spacing in graphite precursor (claim range) | 3.44–3.6 Å | graphite precursor |
Thickness | 0.05–10 mm | — |
Pressure | 5–15 MPa | — |
Pressure | 5–5.5 MPa | — |
Pressure | 5–9 MPa | — |
Pressure | 5–7 MPa | — |
Thickness | 0.1–1 mm | — |
Thickness | 4.5–5 nm | — |
Thickness | 0–2 nm | — |
Pressure | 0–9 MPa | — |