# US 12,007,072 B2 · Protective device for pressurized gas containers

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- Number: US 12,007,072 B2
- Document ID: US12007072B2
- Status: Granted
- Kind: B2
- Application number: 17/429,813
- Filed: 2020-02-05
- Published: 2022-04-28
- Granted: 2024-06-11
- Earliest claimed: 2019-02-15
- Assignees: Messer Gaspack GmbH
- Applicants: Messer Gaspack GmbH
- Inventors: Alexander Kriese
- Web page: https://patentgrep.com/patent/US12007072B2

## CPC

- F17C 13/002: {for vessels under pressure (F17C13/008 and F17C13/02 - F17C13/12 take precedence)}
- F17C 13/06: Closures, e.g. cap, breakable member ({for autoclaves B01J3/03}; closures for {large} containers in general B65D {B65D90/54}; {for pressure vessels in general F16J13/00})
- F17C 13/04: Arrangement or mounting of valves (valves per se F16K {; snap-coupling of nipples F16L37/00})
- F17C 2201/0109: with exteriorly curved end-piece
- F17C 2201/0119: with flat end-piece
- F17C 2201/032: with substantially vertical main axis
- F17C 2201/058: portable (<30 l)
- F17C 2203/0617: with one layer
- F17C 2203/0636: Metals
- F17C 2205/0165: with handgrip
- F17C 2205/0308: Protective caps
- F17C 2205/0394: in direct contact with the pressure vessel
- F17C 2221/011: Oxygen
- F17C 2221/013: Carbon dioxide
- F17C 2221/014: Nitrogen
- F17C 2223/0123: gaseous, e.g. CNG, GNC
- F17C 2223/035: High pressure (>10 bar)
- F17C 2250/043: Pressure
- F17C 2250/0491: Parameters measured at or inside the vessel
- F17C 2260/056: Improving fluid characteristics
- F17C 2270/02: for medical applications
- F17C 2270/05: for industrial use
- Y02E 60/32: Hydrogen storage
- 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)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Protective devices for pressurized gas cylinders have a housing which is arranged around an inner cavity intended for receiving an extraction valve and which has access openings for the extraction connection and for further fittings. In order to counteract soiling or contamination of the extraction connection, the invention provides for an elastically deformable safety element to be fastened to the housing in the region of the access opening of the extraction connection, said element being able to be swung out from a closed position, in which the extraction connection is completely covered and/or enclosed by the safety element, into a position in which it frees the extraction connection.

## Claims

### Claim 1

A protective device for pressurized gas containers, the protective device comprising:
a housing which can be connected to a pressurized gas container and comprises a cavity for enclosing an extraction valve having at least one extraction connection for the connection of a consumer device and which has one or more access opening(s) allowing access to the at least one extraction connection;
wherein the housing is equipped in a region of the access opening of the at least one extraction connection with a resilient safety element which is fastened to the housing and is in such a form that it can be opened from a closing position, in which the at least one extraction connection is completely covered by the safety element and/or enclosed thereby, into a freeing position, in which the at least one extraction connection is freed for connection of the consumer device, and which, after the consumer device has been removed from the extraction connection, automatically returns to its closing position.

### Claim 2 (depends on 1)

The protective device as claimed in claim 1, wherein the safety element is manufactured from a resiliently deformable material.

### Claim 3 (depends on 1)

The protective device as claimed in claim 1, wherein the safety element has a safety portion which in its closing position covers or encloses the extraction connection and which is operatively connected to a return mechanism.

### Claim 4 (depends on 1)

The protective device as claimed in claim 1, wherein the safety element has a defined bending region.

### Claim 5 (depends on 1)

The protective device as claimed in claim 1, wherein the safety element is equipped with a grip element.

### Claim 6 (depends on 1)

The protective device as claimed in claim 1, wherein the safety element is manufactured from a transparent material.

### Claim 7 (depends on 1)

The protective device as claimed in claim 1, wherein the housing has in the region of the access opening of the extraction connection a depression in which the safety element is received in its closing position.

### Claim 8 (depends on 1)

The protective device as claimed in claim 1, wherein the protective device is designed for pressurized gas containers having a capacity of between 1 liter and 50 liters.

### Claim 9 (depends on 2)

The protective device as claimed in claim 2, wherein the resiliently deformable material is an elastomer.