Safety and arming device

Claim 1

A safety and arming system for a spin-arming bomblet fuzing device of the type which is dispersed from a parent weapon after the parent weapon has been launched and reached a safe separation distance from a launch craft, comprising: a. a fuze housing, b. a primary arming and interlock means in said fuze housing comprising: 1. a firing pin, 2. a slider weight containing a detonator operable to be aligned with said firing pin by a predetermined centrifugal force, 3. detent means operable to prevent said slider weight from aligning the detonator with said firing pin until a predetermined rotational velocity is achieved following dispersion from the parent weapon, c. a secondary pressure sensitive arming interlock means in said fuze housing, comprising: 1. a diaphragm-type snap spring, 2. a locking means on said diaphragm spring which is engageable with said slider weight means and operable to also prevent said slider weight from aligning the detonator with said firing pin, 3. said diaphragm snap spring positioned in said fuze housing to form a closed chamber therein, the inside of which is not exposed to the atmosphere, in the parent weapon which surrounds said fuze housing, predetermined pressure outside said chamber being required to snap said diaphragm spring away from said slider means and disengage said locking means from said slider weight means, 4. at least one opening in said fuze housing exposing the outside of said diaphragm snap spring to the surrounding atmosphere in the parent weapon, d. said secondary arming interlock means operable to disengage said slider weight to allow the weight to translate to an armed position upon exposure of the outside of said diaphragm snap spring to a predetermined high-pressure atmosphere within said parent weapon prior to dispersion therefrom.