An inertial igniter for igniting a thermal battery, including: a base having a first projection; a striker mass rotatably connected to the base having a second projection, when the striker mass is rotated towards the base, the first projection impacts the second projection; a member having a first portion engaging with a second portion of the striker mass to restrict rotation of the striker mass unless a predetermined acceleration is experienced; a mass movable from a first position where an acceleration is less than the predetermined acceleration and a second position where the acceleration is greater than the predetermined acceleration to permit the first and second portions to come out of engagement; a spring for biasing the mass in the first position; and a rotation prevention member for permitting impact of the first and second projections when the predetermined acceleration is experienced and the mass moves to the second position.

An inertial igniter for igniting a thermal battery, including: a base having a first projection; a striker mass rotatably connected to the base having a second projection, when the striker mass is rotated towards the base, the first projection impacts the second projection; a member having a first portion engaging with a second portion of the striker mass to restrict rotation of the striker mass unless a predetermined acceleration is experienced; a mass movable from a first position where an acceleration is less than the predetermined acceleration and a second position where the acceleration is greater than the predetermined acceleration to permit the first and second portions to come out of engagement; a spring for biasing the mass in the first position; and a rotation prevention member for permitting impact of the first and second projections when the predetermined acceleration is experienced and the mass moves to the second position.

A non-electric explosive device includes a primary body containing cutting material and including a primary charge positioned in the cutting material; an explosive body at a first axial end of the primary body and including explosive material; and a firing head at a second axial end of the primary body, the firing head including a firing pin secured at least partially inside the firing head via securing device, the firing pin comprising an activating end proximate the primary charge and a blunt end protruding from a distal end of the firing head. A force applied to the blunt end of the firing pin causes the firing pin to retract toward the primary charge and break the securing device so that the activating end of the retracting firing pin impacts the primary charge which ignites the explosive material that causes the cutting material in the primary body to travel radially outward.

A non-electric explosive device includes a primary body containing cutting material and including a primary charge positioned in the cutting material; an explosive body at a first axial end of the primary body and including explosive material; and a firing head at a second axial end of the primary body, the firing head including a firing pin secured at least partially inside the firing head via securing device, the firing pin comprising an activating end proximate the primary charge and a blunt end protruding from a distal end of the firing head. A force applied to the blunt end of the firing pin causes the firing pin to retract toward the primary charge and break the securing device so that the activating end of the retracting firing pin impacts the primary charge which ignites the explosive material that causes the cutting material in the primary body to travel radially outward.

Fuze assembly methods and devices. The methods include providing a firing pin to detonate the projectile; operably connecting a weighted body to the firing pin; and operably connecting a flexural portion to the weighted body to retain position of the weighted body due to centrifugal force generated by the rotation of the projectile to retain the firing pin in a detonation prevention position and move the weighted body to drive the firing pin to a detonation position upon impact of the projectile.

Fuze assembly methods and devices. The methods include providing a firing pin to detonate the projectile; operably connecting a weighted body to the firing pin; and operably connecting a flexural portion to the weighted body to retain position of the weighted body due to centrifugal force generated by the rotation of the projectile to retain the firing pin in a detonation prevention position and move the weighted body to drive the firing pin to a detonation position upon impact of the projectile.

An energy storage device including: a first movable member configured to be movable in one direction relative to a base; a first biasing member configured to bias the first movable member in a second direction opposed to the first direction; a plurality of second movable members, each movable towards an engagement surface of the first movable member when subjected to a predetermined acceleration event in a direction offset from the first direction; and wherein the engagement surface having a portion which when pressed causes a movement of the first movable member in the one direction against a biasing force of the first biasing member; and the plurality of second movable members are configured to sequentially engage the engagement surface upon an increasing acceleration of the base such that energy is stored in the first biasing member.

An energy storage device including: a first movable member configured to be movable in one direction relative to a base; a first biasing member configured to bias the first movable member in a second direction opposed to the first direction; a plurality of second movable members, each movable towards an engagement surface of the first movable member when subjected to a predetermined acceleration event in a direction offset from the first direction; and wherein the engagement surface having a portion which when pressed causes a movement of the first movable member in the one direction against a biasing force of the first biasing member; and the plurality of second movable members are configured to sequentially engage the engagement surface upon an increasing acceleration of the base such that energy is stored in the first biasing member.

An inertial igniter for igniting a thermal battery, including: a base having a first projection; a striker mass rotatably connected to the base having a second projection, when the striker mass is rotated towards the base, the first projection impacts the second projection; a member having a first portion engaging with a second portion of the striker mass to restrict rotation of the striker mass unless a predetermined acceleration is experienced; a mass movable from a first position where an acceleration is less than the predetermined acceleration and a second position where the acceleration is greater than the predetermined acceleration to permit the first and second portions to come out of engagement; a spring for biasing the mass in the first position; and a rotation prevention member for permitting impact of the first and second projections when the predetermined acceleration is experienced and the mass moves to the second position.

An inertial igniter for igniting a thermal battery, including: a base having a first projection; a striker mass rotatably connected to the base having a second projection, when the striker mass is rotated towards the base, the first projection impacts the second projection; a member having a first portion engaging with a second portion of the striker mass to restrict rotation of the striker mass unless a predetermined acceleration is experienced; a mass movable from a first position where an acceleration is less than the predetermined acceleration and a second position where the acceleration is greater than the predetermined acceleration to permit the first and second portions to come out of engagement; a spring for biasing the mass in the first position; and a rotation prevention member for permitting impact of the first and second projections when the predetermined acceleration is experienced and the mass moves to the second position.