Frangible joint separation system

Ammunition and explosives – Having reaction motor – Having separation means

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Details

1022756, 10227511, 89 114, 403 2, F42B 1536

Patent

active

053906063

ABSTRACT:
An improved explosively operated separation joint as well as a process for manufacturing it are disclosed. In the present invention, a hollow-form extrusion is used to provide both sides of a separation joint, each side being attached to both of the two structures. Each end of the joint is attached to a respective one of the two structures. A stainless steel tube is inserted into the hollow portion of the extrusion. The extrusion then is rolled to form a portion of a ring. An explosive core covered by an elastomeric sheath is inserted into the length of the tube. The ends of the ring then are connected to and sealed by an initiation manifold. The manifold provides an interface between each of two flexible confined detonating cords ("FCDCs") with a respective end of the explosive core. The manifold includes a barrier between the ends of the explosive core and the two FCDCs that prevents sympathetic damage to either end of the explosive core and the associated FCDC by the detonation of the other.

REFERENCES:
patent: 3185090 (1965-05-01), Weber
patent: 3373686 (1968-03-01), Blain et al.
patent: 3486410 (1969-12-01), Drexelius et al.
patent: 3698281 (1972-10-01), Brandt et al.
patent: 4022129 (1977-05-01), Day et al.
patent: 4137848 (1979-02-01), Cunha
patent: 4685376 (1987-08-01), Noel et al.
patent: 4742773 (1988-05-01), Bartholomew
patent: 5010823 (1991-04-01), Morrison
patent: 5109749 (1992-05-01), Olcer
patent: 5123356 (1992-06-01), Brooks et al.
patent: 5129306 (1992-07-01), Fauvel
"Confined Explosive Separation System" by E. Raymond Lake, McDonnell Aircraft Co. MDC 69-021 Jun. 1969.

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