Sequential structural separation system

Details Sequential structural separation system Sequential structural separation system

1989-10-31

1991-09-10

Brown, David H.

Ammunition and explosives

Having reaction motor

Having separation means

337416, F42B 1500

Patent

active

050464264

ABSTRACT:
A replacement for the conventional pyrotechnic separation device for large structural elements such as payload fairings on large missile systems is a sequence of nitinol wires or foil strips which, because of their high strength, will hold the structures together but, when heated electrically in sequence, will fuse in milliseconds to allow the structures to separate. The technique for fusing the wires sequentially is to provide wires of sequentially increasing lengths which will cause the shorter length, lower resistance wires to fuse first and the successively longer wires to fuse in sequence until all wires are fused.

REFERENCES:
patent: 3500276 (1970-03-01), Hingorany et al.
patent: 3863570 (1975-02-01), Bixby
patent: 4055829 (1977-10-01), Ruegsegger
patent: 4346554 (1982-08-01), Glinecke
patent: 4597632 (1986-07-01), Mallinson

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