PYROTECHNIC, WHISTLE, AND METHOD OF MAKING

• US 3,712,223 A
• Filed: 10/07/1970
• Issued: 01/23/1973
• Est. Priority Date: 10/07/1970
• Status: Expired due to Term

• Current Assignee: Ralph G. Degn
• Original Assignee: Ralph G. Degn
• Inventors: Degn, Ralph G.
• Primary Examiner(s): Lechert, Jr., Stephen J.
• Application Number:
  US05/078,921
• Time in Patent Office: 839 Days
• Field of Search: 102/31 149/42,44,114,85,38,39,40,41,43
• US Class Current: 102/335
• CPC Class Codes: C06B 29/08 with an organic non-explosive or an organic non-thermic component
• CPC Class Codes: C06B 33/02 with an organic non-explosive or an organic non-thermic component

Abstract

A pyrotechnic whistle and method of producing same which prevents a minimum danger of explosion formed of a tubular reaction chamber and a pyrochemical mixture formed by mixing together a salt of salicylic acid and an oxidizing agent. Finely divided titanium is added to the pyrochemical mixture or to other pyrochemical mixtures formed of aromatic acids and oxidizing agents to provide a trail of glitter when the pyrochemical mixture reacts.

Claims

2. A pyrotechnic device as defined in claim 1 wherein the particle size of titanium is between 16 mesh and 80 mesh.

3. A pyrotechnic device as defined in claim 1 wherein said salt of salicylic acid and oxidizing agent are mixed in a ratio of between 1:

1.0 and 1;

2.5.

4. A pyrotechnic device as defined in claim 1 wherein said pyrochemical mixture comprises one part salt of salicylic acid and 1.0 to 2.5 parts oxidizing agent and less than 0.5 parts titanium mixed in a weight/weight/weight ratio.

5. A pyrotechnic device as defined in claim 1 wherein said chamber is a tube having a smooth bore and at least one open end.

6. A pyrotechnic whistle comprising a reaction chamber having an open end and a pyrochemical mixture comprising a finely divided salt of salicylic acid and an oxidizing agent selected from the group consisting of perchlorate and chlorate, the salt of salicylic acid and oxidizing agent being mixed together in proportions by weight of about 1:

1.0 to 2.5.

7. In a method of producing a pyrotechnic device, the steps of:

providing a reaction chamber having at least one open end;

preparing a pyrochemical mixture by finely dividing a salt of salicylic acid and mixing the salt with a solid oxidizing agent selected from the group consisting of perchlorate and chlorate;

mixing finely divided titanium with the pyrochemical mixture;

locating the pyrochemical mixture and titanium mixture within the reaction chamber.

8. A composition of matter comprising:

a pyrochemical mixture selected from the group consisting of 3, 4, 5 trihydroxybenzoic acid and a chlorate salt, benzoate and perchlorate salts, dinitrophenate and nitrate salts, and picrate and nitrate salts; and

finely divided titanium particles in a percentage composition of less than 40 percent.

9. A composition of matter as defined in claim 8 wherein all salts are potassium salts and the 3, 4, 5 trihydroxybenzoic acid:

chlorate proportions are on the order of about 3;

1;

the benzoate;

perchlorate proportions are on the order of about 2.7;

1;

the dinitrophenate;

nitrate proportions are on the order of about 1;

2.7 and the picrate;

nitrate proportions are on the order of about 1;

1.

10. A pyrotechnic device comprising a reaction chamber having at least one open end and an active pyrochemical mixture comprising (1) an active agent selected from the group consisting of 3, 4, 5 trihydrobenzoic acid, benzoates, 2, 4 dinitrophenols, 2, 4, 6 trinitrophenols, picrates and salicylates;

(2) an oxidizer selected from the group consisting of chlorates, perchlorates and nitrates; and

(3) finely divided titanium.