Impact switch for fuses

Details Impact switch for fuses Impact switch for fuses

1986-09-05

1987-12-29

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Ignition or detonation circuit

102273, F42C 1906

Patent

active

047152818

ABSTRACT:
A switch is adapted for use in a projectile for actuating an electrical explosives-igniter in response to impact of the projectile. The switch includes a stationary electrical contact and a movable electrical contact. An actuator moves the movable contact against the stationary contact to complete an electric circuit in response to projectile impact. The actuator comprises a ball movable toward the movable contact. The ball is seated in a conical recess to enable the ball to move toward the movable contact even when the projectile does not impact along its longitudinal axis. The movable contact may comprise a cone-like array of flexible arms which engage the ball; movement of the ball flexes one or more of the arms into engagement with the stationary contact. Alternatively, the movable contact may comprise a linearly movable bolt engaged by the ball. A movable weight may be positioned behind the ball and adapted to engage the ball upon projectile impact to urge the ball toward the movable contact.

REFERENCES:
patent: 2952208 (1960-09-01), Wagoner
patent: 3054870 (1962-09-01), Wagoner
patent: 3158705 (1964-11-01), Bliss
patent: 3368044 (1968-02-01), Green et al.
patent: 3484571 (1969-12-01), Williams
patent: 3927286 (1975-12-01), Fohl

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