Rapid area clearance of explosives

• US 5,249,500 A
• Filed: 02/01/1993
• Issued: 10/05/1993
• Est. Priority Date: 09/21/1990
• Status: Expired due to Fees

• Current Assignee: Technology International Incorporated
• Original Assignee: Technology International Incorporated
• Inventors: Husseiny, Abdo A., Sabri, Zeinab A.
• Primary Examiner(s): BROWN, DAVID
• Application Number:
  US08/011,788
• Time in Patent Office: 246 Days
• Field of Search: 89/1.11, 89/1.1, 89/1.13, 102/402, 86/50
• US Class Current: 89/1.11
• CPC Class Codes: F42B 33/06 Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs F42B33/004 and F42B33/04 take precedence; elimination of undesirable components of explosives C06B21/0091

Abstract

A system and process for neutralizing unexploded ordinances and clearing explosive infested areas such that maneuvers can be both readily and confidently continued without significant delay is disclosed. The system clears such unexploded ordnances infested areas by initially spraying the explosive infested area with a cryogenic liquid to supercool the unexploded ordinances and reduce an output voltage of a detonator of the unexploded ordinances thereby rendering the unexploded ordinances inert, gathering the now unexploded ordinances and submerging the inert unexploded ordinances in a tank containing the same or similar cryogenic liquid so that the unexploded ordinances are maintained in a supercooled and inert state to allow for disposal. Alternatively, the neutralization of unexploded ordinance and clearing of explosive infested areas may be carried out by spraying the explosive infested area with liquefied methane to supercool the unexploded ordinance and reduce an output voltage of a detonator of the unexploded ordinances to render such ordinance inert, igniting the liquefied methane, deflagrating the unexploded ordinances at a temperature less than that required for detonation and subsequently removing the neutralized ordinances from the explosive infested area.

Claims

1. A method of neutralizing unexploded ordnance and clearing explosive-infested areas comprising the steps of;

spraying the explosive-infested area with liquefied methane to super-cool the unexploded ordnance and reduce an output voltage of a detonator of the unexploded ordnance to render the unexploded ordnance inert;

igniting the liquefied methane;

deflagrating the unexploded ordnance at a temperature less than that required for detonation; and

removing the unexploded ordnance from the explosive-infested area.

2. The method as defined in claim 1, wherein the step of igniting the liquefied methane includes launching an igniter into the explosive-infested area.

3. The method as defined in claim 2, wherein said igniter includes a flammable liquid and an adhesive agent contained in a canister.

4. The method as defined in claim 3, wherein said adhesive agent is rubber.