# US 11,999,629 B2 · Cleaning sachet for removing carbon deposit and rust on gun, and cleaning method thereof

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- Number: US 11,999,629 B2
- Document ID: US11999629B2
- Status: Granted
- Kind: B2
- Application number: 17/858,963
- Filed: 2022-07-06
- Published: 2023-01-26
- Granted: 2024-06-04
- Earliest claimed: 2021-07-16
- Applicants: Cheng-Chung Huang
- Inventors: Cheng-Chung Huang
- Web page: https://patentgrep.com/patent/US11999629B2

## CPC

- C01F 7/02: Aluminium oxide; Aluminium hydroxide; Aluminates
- C01G 9/02: Oxides; Hydroxides
- F41A 29/00: Cleaning or lubricating arrangements (injecting fluids into barrels or cartridge chambers F41A13/04 {; ammunition for cleaning purposes F42B5/24})
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- C01P 2004/51: Particles with a specific particle size distribution
- C01P 2004/64: Nanometer sized, i.e. from 1-100 nanometer
- C11D 7/20: Water-insoluble oxides
- C11D 17/041: {Compositions releasably affixed on a substrate or incorporated into a dispensing means}
- C01F: COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS (metal hydrides {monoborane, diborane or addition complexes thereof} C01B6/00; salts of oxyacids of halogens C01B11/00; peroxides, salts of peroxyacids C01B15/00; sulfides or polysulfides of magnesium, calcium, strontium, or barium C01B17/42; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium or tellurium C01B19/00; binary compounds of nitrogen with metals C01B21/06; azides C01B21/08; {compounds other than ammonia or cyanogen containing nitrogen and non-metals and optionally metals C01B21/082; amides or imides of silicon C01B21/087}; metal {imides or} amides C01B21/092, {C01B21/0923}; nitrites C01B21/50; {compounds of noble gases C01B23/0005}; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; carbides C01B32/90; compounds containing silicon C01B33/00; compounds containing boron C01B35/00; compounds having molecular sieve properties but not having base-exchange properties C01B37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B39/00; cyanides C01C3/08; salts of cyanic acid C01C3/14; salts of cyanamide C01C3/16; thiocyanates C01C3/20; {double sulfates of magnesium with sodium or potassium C01D5/12; with other alkali metals C01D15/00, C01D17/00})
- C01G: COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F (metal hydrides {monoborane, diborane or addition complexes thereof} C01B6/00; salts of oxyacids of halogens C01B11/00; peroxides, salts or peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium, or tellurium C01B19/00; binary compounds of nitrogen with metals C01B21/06; azides C01B21/08; {compounds containing nitrogen, other non-metals and metal C01B21/082}; metal amides C01B21/092; nitrites C01B21/50; {compounds of noble gases C01B23/0005}; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; carbides C01B32/90; compounds containing silicon C01B33/00; compounds containing boron C01B35/00; compounds having molecular sieve properties but not having base-exchange properties C01B37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B39/00; cyanides C01C3/08; salts of cyanamide C01C3/16; thiocyanates C01C3/20)
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A cleaning sachet for removing carbon deposit and rust on a gun element, and a cleaning method thereof, uses cleaning powder that includes aluminum oxide making up 75.000% to 99.989% by weight of the cleaning powder, zinc peroxide making up 0.010% to 9.000% by weight of the cleaning powder, and nano zinc oxide making up 0.001% to 6.000% by weight of the cleaning powder. A user can lay the cleaning sachet on a carbon-deposited and/or rusting area of the gun element before or after moistening the cleaning sachet with a lubricating oil, and then wipe the carbon-deposited and/or rusting area with the cleaning sachet after waiting a period of time. Therefore, the colloidal solution formed by mixing the lubricating oil and the cleaning powder and released out of the cleaning sachet can remove the carbon deposit and/or rust on the surface of the gun element.

## Claims

### Claim 1

A cleaning sachet for removing at least one of carbon deposit and rust on a gun element, comprising:
cleaning powder, comprising:
aluminum oxide (Al2O3), making up 75.000% to 99.989% by weight of the cleaning powder;
zinc peroxide (ZnO2), making up 0.010% to 9.000% by weight of the cleaning powder; and
nano zinc oxide, making up 0.001% to 6.000% by weight of the cleaning powder; and
a sachet body, made at least of a porous fiber material, formed therein with a receiving space for accommodating the cleaning powder, and configured to allow a lubricating oil to enter the receiving space through the sachet body so that the cleaning powder is dispersed in the lubricating oil and a part of the cleaning powder dispersed in the lubricating oil is released to an outer surface of the sachet body.

### Claim 2 (depends on 1)

The cleaning sachet according to claim 1, wherein the aluminum oxide has an average particle size ranging from 15 nm to 25 nm, the nano zinc oxide has an average particle size ranging from 1 nm to 100 nm, and the zinc peroxide has an aerodynamic diameter ranging from 5 g/cm3 to 6 g/cm3.

### Claim 3 (depends on 1)

The cleaning sachet according to claim 1, wherein the sachet body is made of a non-woven fabric.

### Claim 4 (depends on 1)

The cleaning sachet according to claim 1, wherein the cleaning powder further comprises calcium oxide (CaO), ferric oxide (Fe2O3), potassium oxide (K2O), and titanium dioxide (TiO2), the aluminum oxide constitutes 80% to 85% by weight of the cleaning powder, the zinc peroxide constitutes 7% to 9% by weight of the cleaning powder, the nano zinc oxide constitutes 5% to 6% by weight of the cleaning powder, and the calcium oxide, the ferric oxide, the potassium oxide, and the titanium dioxide jointly constitute a remaining percentage by weight of the cleaning powder.

### Claim 5 (depends on 1)

The cleaning sachet according to claim 1, wherein the aluminum oxide includes powder of at least two different particle sizes, and a weight ratio of relatively large-particle-size aluminum oxide powder to relatively small-particle-size aluminum oxide powder ranges from 1:10 to 1:12.

### Claim 6 (depends on 5)

The cleaning sachet according to claim 5, wherein the relatively large-particle-size aluminum oxide powder has an average particle size greater than 20 nm, and the relatively small-particle-size aluminum oxide powder has an average particle size less than 20 nm.

### Claim 7

A method for removing at least one of carbon deposit and rust on a gun element by a cleaning sachet, wherein the cleaning sachet comprises cleaning powder and a sachet body, the cleaning powder comprises aluminum oxide (Al2O3) making up 75.000% to 99.989% by weight of the cleaning powder, zinc peroxide (ZnO2) making up 0.010% to 9.000% by weight of the cleaning powder, and nano zinc oxide making up 0.001% to 6.000% by weight of the cleaning powder, and the sachet body is made at least of a porous fiber material, formed therein with a receiving space for accommodating the cleaning powder, and configured to allow a lubricating oil to enter the receiving space through the sachet body so that the cleaning powder is dispersed in the lubricating oil and a part of the cleaning powder dispersed in the lubricating oil is released to an outer surface of the sachet body, the method comprising:
laying the cleaning sachet on a carbon-deposited area or a rusting area of the gun element;
moistening the cleaning sachet with the lubricating oil;
waiting a period of time; and
wiping the carbon-deposited or rusting area with the cleaning sachet.

### Claim 8 (depends on 7)

The method according to claim 7, wherein the step of laying the cleaning sachet on the carbon-deposited area or the rusting area of the gun element precedes the step of moistening the cleaning sachet with the lubricating oil.

### Claim 9 (depends on 7)

The method according to claim 7, wherein the step of moistening the cleaning sachet with the lubricating oil precedes the step of laying the cleaning sachet on the carbon-deposited area or the rusting area of the gun element.

### Claim 10 (depends on 7)

The method according to claim 7, wherein a weight ratio of the lubricating oil to the cleaning powder ranges from 1:1 to 20:1.

### Claim 11 (depends on 7)

The method according to claim 7, wherein the period of time is 5 to 10 minutes.

### Claim 12 (depends on 7)

The method according to claim 7, wherein the aluminum oxide has an average particle size ranging from 15 nm to 25 nm, the nano zinc oxide has an average particle size ranging from 1 nm to 100 nm, and the zinc peroxide has an aerodynamic diameter ranging from 5 g/cm3 to 6 g/cm3.

### Claim 13 (depends on 7)

The method according to claim 7, wherein the sachet body is made of a non-woven fabric.

### Claim 14 (depends on 7)

The method according to claim 7, wherein the cleaning powder further comprises calcium oxide (CaO), ferric oxide (Fe2O3), potassium oxide (K2O), and titanium dioxide (TiO2), the aluminum oxide constitutes 80% to 85% by weight of the cleaning powder, the zinc peroxide constitutes 7% to 9% by weight of the cleaning powder, the nano zinc oxide constitutes 5% to 6% by weight of the cleaning powder, and the calcium oxide, the ferric oxide, the potassium oxide, and the titanium dioxide jointly constitute a remaining percentage by weight of the cleaning powder.

### Claim 15 (depends on 7)

The method according to claim 7, wherein the aluminum oxide includes powder of at least two different particle sizes, and a weight ratio of relatively large-particle-size aluminum oxide powder to relatively small-particle-size aluminum oxide powder ranges from 1:10 to 1:12.

### Claim 16 (depends on 15)

The method according to claim 15, wherein the relatively large-particle-size aluminum oxide powder has an average particle size greater than 20 nm, and the relatively small-particle-size aluminum oxide powder has an average particle size less than 20 nm.