Ammunition and explosives – Pyrotechnics – Flare
Patent
1990-02-21
1991-06-25
Nelson, Peter A.
Ammunition and explosives
Pyrotechnics
Flare
102351, 102356, 102360, 102361, 102505, 342 5, F42B 426
Patent
active
050257293
ABSTRACT:
An emergency signalling device comprising an elongate shell to be fired into the air. The shell encloses a combustible propellant charge, combustible material for generating a visible smoke trail, combustible material for generating a visible spark trail, at least one explosive charge for generating an audible report, a multiplicity of radar chaff particles, and an explosive ejection charge for distributing the radar chaff particles from the shell once the shell has been propelled beyond a predetermined altitude. An ignitor wire is provided which is in contact with the propellant charge. The shell is enclosed in a barrel for storage and launching. The barrel has an external thumbstop to prevent recoil from pushing the barrel back through the hand of the operator. There is a bulkhead at the closed lower end of the barrel, on which are mounted electrical contacts connected to the ends of the ignitor wire. A cap is threadably engaged with the lower end of the barrel, and has a battery therein which has contacts on the inner surface of the cap. The end cap is manually tightened against the lower end of the barrel to bring the contacts into abutment with one another, igniting the propellant charge. The shell has stabilizer fins with flexible portions which are folded circumferentially between the shell and the barrel, and which are released and extend radially when the shell is launched.
REFERENCES:
patent: 4299166 (1981-11-01), Carnigan et al.
patent: 4791870 (1988-12-01), Simpson
patent: 4852453 (1989-08-01), Morin
patent: 4852456 (1989-08-01), Thornburg
patent: 4860657 (1989-08-01), Steinicke et al.
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