Adjustable time fuse

Ammunition and explosives – Igniting devices and systems – Ignition or detonation circuit

Patent

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Details

F42C 1106

Patent

active

041494679

ABSTRACT:
An adjustable time fuse includes an electrolytic cell with the anode and cathode connectible in two circuits with opposite polarity and a battery connected in the circuits. One of the circuits causes an element of the electrolyte to be deposited on one of the electrodes to activate the cell and the other causes the same element to be removed from the electrode. When this element is completely removed, the internal resistance of the cell increases rapidly. This increase in resistance triggers a thyristor to allow a condenser to discharge through a primer to produce the desired action.

REFERENCES:
patent: 2896095 (1959-07-01), Reed, Jr. et al.
patent: 3065365 (1962-11-01), Hurd et al.
patent: 3548749 (1970-12-01), Dreitzler
patent: 3690259 (1972-09-01), Piazza

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