Parachute line cutting device

Ordnance – Explosive operated apparatus

Reexamination Certificate

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Details

C244S15100A, C114S22100A, C083S639400

Reexamination Certificate

active

10915595

ABSTRACT:
The present invention is to improve the mechanical characteristics of a pyrotechnical parachute line cutting device. By enforcing the mechanical traction on the electrical connection wire by Kevlar reinforcement cords. The flexible electrical wire will be connected straight to the propellant detonator to avoid wire connections and fix the detonator trigger straight on the flexible wire. The reefing line will be cut by the blade but also, to secure the cutting action, be melt in the head of the cutter blade after explosion due to the use of special knife material size and an adapted pyrotechnical charge.

REFERENCES:
patent: 2768802 (1956-10-01), Dejean
patent: 2924147 (1960-02-01), Bohl et al.
patent: 2926565 (1960-03-01), Thorness et al.
patent: 2942818 (1960-06-01), Stott
patent: 3482484 (1969-12-01), Brizzolara
patent: 3885484 (1975-05-01), Sturgis
patent: 3895552 (1975-07-01), Lagofun
patent: 3991679 (1976-11-01), Savitt et al.
patent: 4062112 (1977-12-01), Lake
patent: 4493240 (1985-01-01), Norton
patent: 4517895 (1985-05-01), Rucker
patent: 4860698 (1989-08-01), Patrichi et al.
patent: 5036588 (1991-08-01), Cherry
patent: 5177317 (1993-01-01), Walker et al.
patent: 5703315 (1997-12-01), Coggan
patent: 19709316 (1997-11-01), None
patent: 516869 (1940-01-01), None

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