Cobalt oxide chlorate candle
First Claim
Patent Images
1. A substantially fuel-free oxygen-generating candle comprising a compressed active oxygen source consisting essentially of an alkali metal chlorate with from 0 to about 1% of alkali metal perchlorate;
- a sufficient amount of cobalt oxide selected from the group consisting of CoO and mixtures of CoO and Co3 O4 to maintain a self-sustaining catalytic decomposition admixed therewith;
said mixture being substantially fuel-free; and
an ignition material on an end of the candle whereby when ignited the candle generates oxygen by relatively low temperature catalytic decomposition of the chlorate.
3 Assignments
0 Petitions
Accused Products
Abstract
A substantially fuel-free oxygen-generating composition consisting essentially of an alkali metal chlorate which may contain a small amount of perchlorate, in combination with a catalytic amount in the order of about 0.5 to 5.0% by weight of cobalt oxide.
-
Citations
18 Claims
-
1. A substantially fuel-free oxygen-generating candle comprising a compressed active oxygen source consisting essentially of an alkali metal chlorate with from 0 to about 1% of alkali metal perchlorate;
-
a sufficient amount of cobalt oxide selected from the group consisting of CoO and mixtures of CoO and Co3 O4 to maintain a self-sustaining catalytic decomposition admixed therewith; said mixture being substantially fuel-free; and an ignition material on an end of the candle whereby when ignited the candle generates oxygen by relatively low temperature catalytic decomposition of the chlorate. - View Dependent Claims (2, 3, 6, 7, 8, 9)
-
-
4. A substantially fuel-free oxygen candle composition which when ignited generates oxygen in a self-sustaining reaction without additional heat or added fuel material;
-
said composition, in weight percent, consisting of an intimate mixture of active generating components and a minor percentage of substantially fuel-free excipient components; the active substantially fuel-free oxygen-generating components consisting essentially of 0 to about 1% alkali metal perchlorate, an alkali metal chlorate, and a sufficient amount of cobalt oxide selected from the group consisting of CoO and mixtures of CoO and Co3 O4 to maintain a self-sustaining catalytic decomposition; the substantially fuel-free excipient components comprising to 0 to a minor amount of BaO2 and 0 to a minor amount of SiO2, at least one of said components being present, to modify the rate of the reaction; the alkali metal chlorate and perchlorate being present in an amount to make the total percentage of components in the composition 100%. - View Dependent Claims (5)
-
- 10. The method of producing substantially pure oxygen which comprises igniting a fuel-free composition comprising an active oxygen source consisting essentially of an alkali metal chlorate with from 0 to about 1% of alkali metal perchlorate and a sufficient amount of cobalt oxide selected from the group consisting of CoO and mixtures of CoO and Co3 O4 to maintain a self-sustaining catalytic decomposition without additional heat or added fuel material.
- 17. The method of obtaining oxygen at relatively low temperatures which comprises igniting a candle comprising a compressed active oxygen source consisting essentially of an alkali metal chlorate with from about 0 to 1% of alkali metal perchlorate admixed with a sufficient amount of cobalt oxide selected from the group consisting of CoO and mixtures of CoO and Co3 O4 to maintain a self-sustaining catalytic decomposition without additional heat, the said mixture being substantially fuel free.
Specification