# US 2019/0376604 A1 · Tank valve and tank with such a valve

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- Number: US 2019/0376604 A1
- Document ID: US20190376604A1
- Status: Published application
- Kind: A1
- Application number: 16/433,070
- Filed: 2019-06-06
- Published: 2019-12-12
- Earliest claimed: 2018-06-08
- Assignees: Leinemann GmbH & Co. KG
- Applicants: Leinemann GmbH & Co. KG
- Inventors: Ralf KOSMEHL; Frank HELMSEN; Thomas HEIDERMANN; Thorsten SCHAPER; Michael DAVIS
- Web page: https://patentgrep.com/patent/US20190376604A1

## CPC

- F16K 3/085: {the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates}
- F16K 1/44: Details of seats or valve members of double-seat valves
- F16K 3/30: Details
- F16K 17/38: of excessive temperature
- F16K 27/07: of cutting-off parts of tanks, e.g. tank-cars
- B65D 90/54: Gates or closures
- F16K 39/02: for lift valves
- F17C 13/00: Details of vessels or of the filling or discharging of vessels
- F17C 13/04: Arrangement or mounting of valves (valves per se F16K {; snap-coupling of nipples F16L37/00})
- F17C 2221/014: Nitrogen
- F17C 2221/016: Noble gases (Ar, Kr, Xe)
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- 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)

## Abstract

A tank valve with a valve seat and a valve disc can be displaced relative to the valve seat along a displacement direction into either a closed position or a through-flow position. The valve seat includes a plate shaped part and a ring-shaped part. The valve disc has a first contact area which contacts the first plate shaped part of the valve seat when the tank valve is in the closed position. The valve disc also has a second contact area which is in contact with a second part of the valve seat when it is in the closed position.

## Claims

### Claim 1

A tank valve, comprising:
a valve seat comprising a first plate-shaped part, and a second ring shaped part; and
a valve disc displaceable relative to the valve seat along a displacement direction to either a closed position where the tank valve is closed or to a through-flow position where the tank valve is open,
wherein the valve disc comprises a first contact area, which is in contact with the first part of the valve seat when the tank valve is in the closed position, and
wherein the valve disc comprises a second contact area, which is in contact with the second part of the valve seat when the tank valve is in the closed position.

### Claim 2 (depends on 1)

The tank valve according to claim 1, wherein the valve disc comprises a tubular casing which connects the first contact area of the valve disc with the second contact area of the valve disc.

### Claim 3 (depends on 2)

The tank valve according to claim 2 wherein the first contact area of the valve disc is arranged on an inwardly folded end of the casing.

### Claim 4 (depends on 2)

The tank valve according to claim 2 wherein the casing tapers in the direction of displacement.

### Claim 5 (depends on 2)

The tank valve according to claim 2 wherein the casing has at least one elastic area in the direction of displacement.

### Claim 6 (depends on 5)

The tank valve of claim 5 wherein the at least one elastic area of the casing is in a form of a bellows

### Claim 7 (depends on 5)

The tank valve of claim 5 wherein the at least one elastic area is situated at an end of the casing that is inwardly folded.

### Claim 8 (depends on 1)

The tank valve according to claim 1 wherein the first part and the second part of the valve seat are situated at a distance from one another along the direction of displacement.

### Claim 9 (depends on 1)

The tank valve according to claim 1 wherein the first part and the second part of the valve seat have a same outer diameter perpendicular to the direction of displacement.

### Claim 10 (depends on 1)

The tank valve according to claim 1 wherein the tank valve is configured to be operated at temperatures below −50° C.

### Claim 11 (depends on 1)

The tank valve according to claim 1 wherein the tank valve is configured to be operated at temperatures below −100° C.

### Claim 12 (depends on 1)

The tank valve according to claim 1 wherein the tank valve is configured to be operated at temperatures below −160° C.

### Claim 13 (depends on 1)

A tank for liquefied gases, comprising:
at least one tank volume;
at least one discharge pipe;
a tank valve according to claim 1 arranged at one end of the at least one discharge pipe, and which is situated inside the tank volume.

### Claim 14 (depends on 13)

The tank according to claim 13, wherein the valve disc of the tank valve is displaceable by a traction device arranged on a roof of the tank.