Method of generating non-toxic smoke

• US 5,610,359 A
• Filed: 10/25/1994
• Issued: 03/11/1997
• Est. Priority Date: 02/16/1993
• Status: Expired due to Fees

• Current Assignee: Esther Jacobson, Michael Vittenberg, Vida Naishtut, Yechiel Spector, Zohar Beinert
• Original Assignee: Esther Jacobson, Michael Vittenberg, Vida Naishtut, Yechiel Spector, Zohar Beinert
• Inventors: Spector, Yechiel, Vittenberg, Michael, Beinert, Zohar, Naishtut, Vida, Jacobson, Esther
• Primary Examiner(s): Gibson, Sharon
• Assistant Examiner(s): ANTHONY, JOSEPH DAVID
• Application Number:
  US08/328,981
• Time in Patent Office: 868 Days
• Field of Search: 252/305, 252/4, 252/6, 169/42, 169/26, 169/66, 169/68, 169/27, 169/28, 169/91, 149/19.6, 149/117, 102/334, 89/1.11
• US Class Current: 89/1.11
• CPC Class Codes: A62C 5/006 Extinguishants produced by combustion
• CPC Class Codes: A62C 99/0018 using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
• CPC Class Codes: C06D 3/00 Generation of smoke or mist (chemical part) compositions used as biocides, pest repellants or attractants, or plant growth regulators A01N25/18
• CPC Class Codes: F41H 9/06 Apparatus for generating artificial fog or smoke screens for producing special effects on stages A63J5/00; smoke-pot projectors, e.g. arranged on vehicles, F42B5/155
• CPC Class Codes: Y10S 149/117 Smoke or weather composition contains resin

Abstract

A method of generating nontoxic smoke is taught. The method comprises: (a) submerging a nontoxic smoke creating device in a liquid coolant while preventing entry of coolant into said device; said device includes a composition which comprises: (1) a first reactant selected from the group consisting of potassium chlorate, potassium perchlorate, potassium dichromate, cesium nitrate, and potassium nitrate; and (2) a second reactant serving as a reduction agent; (b) activating said smoke creating device by reacting said composition comprising said first reactant and said second reactant, to create solid particulate products having a diameter of about one micron or less which create the nontoxic smoke; and (c) passing said solid particulate products into said coolant through at least one downwardly directed tuyere hydraulically connected at or near the top of said device without any accompanied destruction of said nontoxic smoke creating device.

Claims

1. A method of generating nontoxic smoke comprising:

(a) submerging a nontoxic smoke creating device in a liquid coolant while preventing entry of coolant into said device;

said device includes a composition which comprises;

(1) a first reactant selected from the group consisting of potassium chlorate, potassium perchlorate, potassium dichromate, cesium nitrate, and potassium nitrate; and

(2) a second reactant serving as a reduction agent;

(b) activating said smoke creating device by reacting said composition comprising said first reactant and said second reactant, to create solid particulate products having a diameter of about one micron or less which create the nontoxic smoke; and

(c) passing said solid particulate products into said coolant through at least one downwardly directed tuyere hydraulically connected at or near the top of said device without any accompanied destruction of said nontoxic smoke creating device.