# US 4,396,114 A · Flexible means for storing and recovering hydrogen

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- Number: US 4,396,114 A
- Document ID: US4396114A
- Status: Granted
- Kind: A
- Application number: 06/304,249
- Filed: 1981-09-21
- Granted: 1983-08-02
- Earliest claimed: 1981-09-21
- Assignees: MPD Technology Corporation
- Inventors: Peter M. Golben; Warren F. Storms
- Web page: https://patentgrep.com/patent/US4396114A

## CPC

- C01B 3/0005: Reversible storage of hydrogen, e.g. by hydrogen getters or electrodes
- F17C 11/005: {for hydrogen}
- Y02E 60/32: Hydrogen storage
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- 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

Means (10) for storing and recovering hydrogen. A tube (12), circumscribing a flexible spring (14), is packed with hydridable material (16). Recovery for storage of the hydrogen may be effectuated by hydriding or dehydriding the hydridable material (16). Depending on the circumstances, (i.e. hydriding or dehydriding) hydrogen will be driven across the boundry between the spring (14) and the hydridable material (16).

## Claims

### Claim 1

An apparatus for storing and recovering hydrogen, the apparatus comprising a tube, a spring disposed within the tube, the exterior of the spring and the interior of the tube defining a void therebetween, and hydridable material disposed within the void and registered against the exterior of the spring and the interior of the tube.

### Claim 2 (depends on 1)

The apparatus according to claim 1 wherein the spring includes a hollow central portion to expedite hydrogen flow into and out of the apparatus.

### Claim 3 (depends on 1)

The apparatus according to claim 1 wherein the spring is a garter spring.

### Claim 4 (depends on 1)

The apparatus according to claim 1 wherein one end of the apparatus is sealed.

### Claim 5 (depends on 1)

The apparatus according to claim 1 wherein a jacket porous to hydrogen envelopes the spring.

### Claim 6 (depends on 1)

The apparatus according to claim 1 wherein the apparatus is connected to means for utilizing hydrogen.

### Claim 7 (depends on 1)

The apparatus according to claim 1 wherein the tube is constructed from a heat conducting material.

### Claim 8 (depends on 1)

The apparatus according to claim 1 wherein the spring is flexible.

### Claim 9 (depends on 1)

The apparatus according to claim 1 wherein at least one spacer is disposed between the tube and the spring.