Ammunition and explosives – Pyrotechnics – Rocket
Patent
1987-02-03
1988-03-08
Nelson, Peter A.
Ammunition and explosives
Pyrotechnics
Rocket
102352, 102440, 1022028, 1022029, F42B 400
Patent
active
047293195
ABSTRACT:
The controlled explosion projectile ejection system utilizes a source of combustible gas through a controllable input valve into a combustion chamber. Inside the combustion chamber is a sparking means. After the chamber is loaded or filled with gas, a spark control signal is applied to the sparking means and the gas ignites. At the output of the chamber is disposed a controllable output valve. In a simple embodiment, the output valve is simply a valve head biased against the output port of the chamber thereby inhibiting any gas flow from the chamber unless the pressure in the chamber exceeds the biasing force against the valve head. After ignition, the gas expands and the resulting pressure is much greater than the biasing force on the output valve head and the valve opens. Downstream of the output valve is a barrel with the projectile loaded therein. The expanding gas passes through the output valve and ejects the projectile from the barrel.
REFERENCES:
patent: 3343921 (1967-09-01), Braun
patent: 4007691 (1977-02-01), Haake
patent: 4026212 (1977-05-01), Dardick
patent: 4285153 (1981-08-01), Crouch
patent: 4531458 (1985-07-01), Saxby
patent: 4539969 (1985-09-01), Saxby
patent: 4593602 (1986-06-01), Faix
Malloy John C.
Nelson Peter A.
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