# US 12,215,828 B2 · Apparatus and method for filling a gas magazine of a pneumatic weapon simulator

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- Number: US 12,215,828 B2
- Document ID: US12215828B2
- Status: Granted
- Kind: B2
- Application number: 17/195,637
- Filed: 2021-03-08
- Published: 2021-11-11
- Granted: 2025-02-04
- Earliest claimed: 2020-03-06
- Applicants: Vojtech Dvorak
- Inventors: Vojtech Dvorak
- Web page: https://patentgrep.com/patent/US12215828B2

## CPC

- F17C 5/00: Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures (adding propellants to aerosol containers B65B31/00)
- F17C 13/04: Arrangement or mounting of valves (valves per se F16K {; snap-coupling of nipples F16L37/00})
- F41A 33/06: Recoil simulators
- F17C 2201/0119: with flat end-piece
- F17C 2201/058: portable (<30 l)
- F17C 2203/0617: with one layer
- F17C 2205/0111: Boxes
- F17C 2205/0138: bundled in series
- F17C 2205/0335: Check-valves or non-return valves
- F17C 2221/013: Carbon dioxide
- F17C 2221/014: Nitrogen
- F17C 2221/03: Mixtures
- F17C 2221/031: Air
- F17C 2223/0123: gaseous, e.g. CNG, GNC
- F17C 2223/036: Very high pressure (>80 bar)
- F17C 2227/041: vessel by vessel
- F17C 2270/05: for industrial use
- F17C 2270/0736: Capsules, e.g. CO2
- F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25)
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE

## Abstract

A gas magazine for a pneumatic weapon simulator. A gas magazine fill station for a pneumatic weapon simulator. A method of filling a gas magazine for a pneumatic weapon simulator. The apparatus for filling and refilling a fluid reservoir of a magazine for a pneumatic firearm simulator from a source of pressurized fluid of the present disclosure includes: a receiver for receiving the magazine; a passage for conveying the pressurized fluid from the source of pressurized fluid to the fluid reservoir of the magazine received in the receiver; and, a vent valve in fluid communication with the passage for venting the pressurized fluid from the passage. The apparatus may further include a vent channel in fluid communication with the vent valve. The apparatus may also include a valve in fluid communication with the passage which is adapted for permitting pressurized fluid to be conveyed through the passage; and alternately, prevent pressurized fluid from being conveyed through the passage.

## Claims

### Claim 1

An apparatus for an pneumatic firearm simulator for filling and refilling a fluid reservoir of a magazine through its fill from a source of pressurized fluid, the apparatus comprising:
a receiver adapted for receiving the magazine inserted therein;
said receiver including a seal;
said receiver including a non-sealed enabler;
said seal adapted to surround said enabler and the fill port when the magazine is inserted in said receiver;
a passage for conveying the pressurized fluid from the source of pressurized fluid to the fluid reservoir of the magazine received in said receiver past said enabler and through the fill port.

### Claim 2 (depends on 1)

The apparatus of claim 1 further including a wiper positioned in said receiver adapted for removing debris from said magazine.

### Claim 3 (depends on 1)

The apparatus of claim 1 including a plurality of receivers, each of said plurality of said receivers adapted to receive a magazine, each magazine including a fluid reservoir; said passage being in fluid communication with each of said plurality of reservoirs.

### Claim 4 (depends on 3)

The apparatus of claim 3 wherein at least one of said plurality of receivers includes a check valve at said interface.

### Claim 5 (depends on 1)

The apparatus of claim 1 wherein said receiver includes an electronic interface adapted to mate with an electronic interface on said magazine.

### Claim 6 (depends on 1)

The apparatus of claim 1 wherein the magazine includes a shot counter and said receiver includes a boss adapted to reset said shot counter when the magazine is inserted in said receiver.

### Claim 7 (depends on 1)

The apparatus of claim 1 further including a valve in fluid communication with said passage adapted for permitting pressurized fluid to be conveyed through said passage; and, prevent pressurized fluid from being conveyed through said passage.

### Claim 8 (depends on 7)

The apparatus of claim 7 including means for actuating said valve.

### Claim 9 (depends on 1)

The apparatus of claim 1 further including a vent valve in fluid communication with said passage for venting the pressurized fluid from said passage and a vent channel in fluid communication with said vent valve.

### Claim 10 (depends on 9)

The apparatus of claim 9 wherein said vent valve is a three position valve adapted to permit pressurized fluid to be conveyed through said passage; prevent pressurized fluid from being conveyed through said passage; and, vent pressurized fluid from said passage.

### Claim 11 (depends on 10)

The apparatus of claim 10 including means for actuating said valve.

### Claim 12 (depends on 1)

The apparatus of claim 1 including a block such that said receiver is a part of said block.

### Claim 13 (depends on 12)

The apparatus of claim 12 wherein said block includes a first receiver in fluid communication with said passage;
said block including a first check valve;
an end section secured to said block;
said block and said end section defining a second receiver such that said first check valve is positioned in said second receiver.

### Claim 14 (depends on 13)

The apparatus of claim 13 including a middle section positioned between said block and said end section;
said middle section secured to said block;
said end section secured to said middle section;
said block and said middle section defining a third receiver such that said first check valve is positioned in said third receiver;
said end section secured to said middle section such that said middle section and said end section define said second receiver;
said middle section including a second check valve;
said second check valve positioned in said second receiver.

### Claim 15

A magazine for a pneumatic firearm simulator for simulated shooting, said magazine comprising:
a fluid reservoir;
a housing for enclosing said fluid reservoir;
said housing including a valve in fluid communication with said fluid reservoir;
said valve adapted for permitting a pressurized fluid to enter said reservoir but preventing said pressurized fluid from exiting said fluid reservoir;
said valve including a filter adapted to filter said pressurized fluid permitted to enter said reservoir.

### Claim 16 (depends on 15)

The magazine of claim 15 wherein said valve is a needle valve.

### Claim 17

An apparatus for an pneumatic firearm simulator for filling and refilling a fluid reservoir of a magazine through its fill port from a source of pressurized fluid, the apparatus comprising:
a receiver adapted for receiving the magazine inserted therein;
said receiver including a check valve;
said receiver including a seal surrounding said check valve;
said seal adapted to surround the fill port when the magazine is inserted in said receiver;
said check valve including an interface adapted for contact with the fill port of the magazine when inserted in said receiver;
a passage for conveying the pressurized fluid from the source of pressurized fluid to the fluid reservoir of the magazine received in said receiver;
said passage terminating at said check valve;
said interface shaped so as to allow the magazine to be freely inserted in said receiver past said interface.

### Claim 18 (depends on 17)

The apparatus of claim 17 wherein said interface includes a domed shape.

### Claim 19 (depends on 17)

The apparatus of claim 17 wherein said interface includes a domed shape.