METHOD FOR FILLING A BAG WITH WATER VAPOR AND CARBON DIOXIDE GAS

• US 3,785,149 A
• Filed: 06/08/1972
• Issued: 01/15/1974
• Est. Priority Date: 06/08/1972
• Status: Expired due to Term

• Current Assignee: HBB Limited Partnership
• Original Assignee: Hubert G. Timmerman
• Inventors: Timmerman, Hubert G.
• Primary Examiner(s): Lechert, Jr., Stephen J.
• Application Number:
  US05/261,041
• Time in Patent Office: 586 Days
• Field of Search: 280/15AB 141/10 102/39 252/5,6,7 149/83 60/205
• US Class Current: 60/205
• CPC Class Codes: B60R 2021/2648 comprising a plurality of combustion chambers or sub-chambers
• CPC Class Codes: B60R 21/2644 using only solid reacting substances, e.g. pellets, powder
• CPC Class Codes: C06B 29/04 with an inorganic non-explosive or an inorganic non-thermic component
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

A deflagration composition yielding a gas comprising principally carbon dioxide and water vapor comprises a substantially homogeneous mixture of citric acid powder in the range of from about 25 to 37 percent by weight and an oxidizer powder selected from the group consisting of potassium chlorate, potassium perchlorate, sodium chlorate, and sodium perchlorate. This composition may be used adjacent a coolant powder comprising up to about 40 percent by weight of potassium chlorate and an endothermic decomposition coolant having a thermal decomposition product selected from the class consisting of carbon dioxide and water.

Claims

2. A method as defined in claim 1 further comprising suppressing formation of carbon monoxide by providing oxidizing powder in the mixture in a proportion about 5 percent higher than the stoichiometric proportion that produces substantially entirely carbon dioxide and water vapor as gaseous reaction products.

3. A method as defined in claim 2 further comprising the steps of:

cooling the products of the ignition reaction by contacting the reaction products with an endothermic decomposition coolant powder that decomposes tO produce a gaseous decomposition product selected from the class consisting of carbon dioxide, oxygen and water vapor; and

directing the carbon dioxide, oxygen or water vapor from the cooling step into the gas bag.

4. A method for inflating a gas bag comprising the steps of:

igniting a mixture of citric acid in a proportion of from about 25 to 37 percent by weight and an oxidizing powder selected from the class consisting of potassium chlorate, potassium perchlorate, sodium chlorate, and sodium perchlorate; and

directing water vapor and carbon dioxide gas from the igniting step into a gas bag.

5. A method as defined in claim 4 wherein the oxidizer powder is potassium chlorate.

6. A method as defined in claim 4 further comprising the steps of:

cooling the products of the ignition reaction by contacting the reaction products with an endothermic decomposition coolant powder that decomposes to produce a gaseous decomposition product selected from the class consisting of carbon dioxide, oxygen, and water vapor; and

directing the carbon dioxide, oxygen or water vapor from the cooling step into the gas bag.

7. A method as defined in claim 6 wherein the coolant powder comprises up to about 60 percent of potassium chlorate and a powder selected from the class consisting of magnesium carbonate, manganese carbonate, zinc carbonate, barium carbonate, calcium carbonate, potassium bicarbonate, hydrated magnesium carbonate, hydrated zirconium oxide, borax, and barium oxide octahydrate.

8. A method as defined in claim 6 wherein the coolant powder comprises up to about 60 percent by weight of potassium chlorate and a balance of zinc carbonate.

9. A method as defined in claim 6 wherein the cooling step is conducted partly remote from the igniting step by separating the mixture of citric acid and oxidizer powder from the coolant powder.