# US 10,118,826 B2 · Oxygen generators

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- Number: US 10,118,826 B2
- Document ID: US10118826B2
- Status: Granted
- Kind: B2
- Application number: 15/103,874
- Filed: 2014-12-11
- Published: 2016-11-03
- Granted: 2018-11-06
- Earliest claimed: 2013-12-12
- Assignees: Molecular Oxygen Limited; Molecular Products Limited
- Applicants: Molecular Oxygen Limited
- Inventors: Mandy Humphreys; Peter Hutchinson
- Web page: https://patentgrep.com/patent/US10118826B2

## CPC

- C01B 13/0296: {Generators releasing in a self-sustaining way pure oxygen from a solid charge, without interaction of it with a fluid nor external heating, e.g. chlorate candles or canisters containing them}
- C01B 13/0218: {Chlorate}
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}

## Abstract

An oxygen generator comprising a housing and a chemical core within the housing, the chemical core being capable on ignition of producing oxygen by chemical reaction. An ignition apparatus within the housing is for igniting the chemical core, and a collection apparatus within the housing collects oxygen produced by the chemical core. The collection apparatus comprises a cooling chamber having an inlet through which oxygen produced by the chemical core enters into the cooling chamber, and an outlet through which oxygen in the cooling chamber leaves the cooling chamber. The interior of the cooling chamber has at least one wall arranged in the path of oxygen flowing from the inlet to the outlet.

## Claims

### Claim 1

An oxygen generator comprising:
a housing;
a chemical core within the housing, the chemical core being capable on ignition of producing oxygen by chemical reaction;
an ignition apparatus within the housing for igniting the chemical core;
a collection apparatus within the housing for collecting oxygen produced by the chemical core;
wherein the collection apparatus comprises:
a cooling chamber having an inlet through which oxygen produced by the chemical core enters into the cooling chamber, and an outlet through which oxygen in the cooling chamber leaves the cooling chamber,
and wherein the interior of the cooling chamber has at least one wall arranged in the path of oxygen flowing from the inlet to the outlet.

### Claim 2 (depends on 1)

An oxygen generator as claimed in claim 1, wherein the chemical core comprises metal chlorate or perchlorate.

### Claim 3 (depends on 1)

An oxygen generator as claimed in claim 1, wherein the chemical core further comprises a catalyst and a fuel.

### Claim 4 (depends on 1)

An oxygen generator as claimed in claim 1, wherein the at least one wall defines a plurality of paths from the inlet to the outlet.

### Claim 5 (depends on 4)

An oxygen generator as claimed in claim 4, wherein a first path and second path of the plurality of paths are arranged so that a stream of oxygen flowing along the first path is directed into a stream of oxygen flowing along the second path.

### Claim 6 (depends on 1)

An oxygen generator as claimed in claim 1, wherein the cooling chamber comprises a plurality of walls that are arranged concentrically.

### Claim 7 (depends on 1)

An oxygen generator as claimed in claim 1, comprising at least a first and a second wall having gaps on opposite sides of the cooling chamber.

### Claim 8 (depends on 1)

An oxygen generator as claimed in claim 1, wherein the cooling chamber is formed by a depression in a first cooling chamber piece and a corresponding depression in a second cooling chamber piece.

### Claim 9 (depends on 8)

An oxygen generator as claimed in claim 8, wherein the inlet is in the first cooling chamber piece, and the outlet is in the second cooling chamber piece.

### Claim 10 (depends on 1)

An oxygen generator as claimed in claim 1, wherein the inlet is positioned apart from the outlet.

### Claim 11 (depends on 1)

An oxygen generator as claimed in claim 1, wherein the outlet is arranged to be receive a standard oxygen tube pressure fitting.