Abstract: A method for rotating a toggle link upon an acceleration event greater than a predetermined threshold. The method including: biasing a toggle link against a stop when the acceleration event is less than the predetermined threshold, a position of the toggle link against the stop being on a first side of a singular position of the toggle link; biasing the toggle link towards an opposite direction from the stop when the toggle link is positioned on a second side of the singular position; and moving the toggle link from the first side of the singular position to the second side of the singular position when the base structure undergoes an acceleration event greater than a predetermined threshold.

Abstract: A collapsible storage unit including: a plurality of triangular sidewalls at least partially defining a cavity for storing a liquid electrolyte therein; wherein the plurality of triangular sidewalls are configured to collapse in a longitudinal direction about a hinge disposed between adjacent sides of each of the plurality of triangular sidewalls.

Abstract: A system including a polarized RF scanning reference source and one or more cavity sensor receivers.

Abstract: An accelerometer including: a housing having an internal cavity; a piezoelectric material disposed in the internal cavity; a mass movable disposed in the internal cavity; and a spring disposed between the piezoelectric material and a portion of the housing, the spring being compressively preloaded against the piezoelectric material; wherein the mass is movable when the housing experiences an acceleration such that the mass acts upon the spring and the spring acts against the piezoelectric material, the piezoelectric material outputting a signal corresponding to a magnitude of the acceleration.

Abstract: A device for depassivation of an energy storage device having an anode, a cathode and a core with an electrolyte, the device including: a first switch configured to provide a positive input voltage to the anode; a second switch configured to provide a negative input voltage to the anode; and a controller configured to: detect that a first predetermined event related to a buildup of passivation has occurred with regard to the energy storage device; switch between a positive input voltage and a negative input voltage provided to the anode at a frequency sufficient to depassivate the anode; discontinue the switching when a second predetermined event related to passivation has occurred.

Abstract: 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.

Abstract: 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.

Abstract: A method for assembling a thermal battery. The method including: arranging a plurality of tubes into a cylindrical shape; connecting the plurality of tubes to each other; attaching a first plate to a first end of the connected plurality of tubes into corresponding holes in the first plate; providing an initiation device to the first end of each of the plurality of tubes; filling each of the plurality of tubes from a second end with an exothermic material; assembling thermal battery components inside the connected plurality of tubes; connecting terminal wires to the thermal battery components; and connecting the second end of the connected plurality to a second plate.

Abstract: A reserve battery including: a housing has first and second compartments separated by a membrane, the first compartment has an anode and cathode and a separator positioned there between. The second compartment has an electrolyte for use with the anode and cathode to produce electrical power. The electrolyte being sealed in the second compartment relative to the first compartment at least by the membrane. Electrodes are connected to the anode and cathode and each has a portion on an outside of the housing. Where the second compartment has a cavity in which a wick material is arranged. The wick material is configured to pull the electrolyte into the second compartment from the first compartment by capillary action when the membrane changes from a sealed state in which the electrolyte is sealed within the second compartment to an unsealed state in which the electrolyte can flow into the first compartment.

Abstract: A thermoelectric generator system including: a first surface having a first material configured to undergo a phase change at a first temperature; an actuator configured to retract the first material from contacting a heat source upon the heat source reaching a predetermined temperature higher than the first temperature; and a thermoelectric generator having a hot side and a cold side, the first material being on the hot side. The thermoelectric generator system can further include a second material configured to undergo a phase change at a second temperature, the second temperature being lower than the first temperature, the second material being on the cold side of the thermoelectric generator.

Abstract: A device including: a body having one or more walls defining an internal cavity, the wall(s) having one or more grooves extending in a longitudinal direction of the internal cavity and extending at least partially along a periphery of the wall(s); a mass movable in the longitudinal direction within the internal cavity, the mass having one or more holes extending in a direction offset from the longitudinal direction; a ball partially disposed in the groove(s) and partially disposed in each hole(s); and an elastic material for biasing the ball towards the groove(s). The groove(s) having a shape such that the acceleration greater than a predetermined acceleration profile causes the ball to first move opposite to the direction of the acceleration and then bounce to move in the direction of the acceleration until the ball(s) moves into the hole(s) to free the mass to move longitudinally opposite to the acceleration.

Abstract: A liquid reserve battery including: a collapsible storage unit having a collapsible cavity for storing a liquid electrolyte therein; and a battery cell in communication with an outlet of the collapsible storage unit, the battery cell having gaps dispersed therein. Wherein the collapsible storage unit comprises a plurality of triangular sidewalls; and the plurality of triangular sidewalls being configured to collapse in a longitudinal direction about a hinge disposed between adjacent sides of each of the plurality of triangular sidewalls.

Abstract: A method for determining angular orientation of an object in two or more directions. The method includes: generating a scanning polarized RF source signal; receiving the scanning polarized RF source signal at one or more cavities of a sensor disposed on the object; measuring the scanning polarized RF source signal at a first portion of the sensor; reflecting the scanning polarized RF source signal toward a second portion of the sensor; measuring the scanning polarized RF source signal at the second portion of the sensor; and determining the angular orientation of the object in the two or more directions based on the measured signal at the first and second portions of the sensor.

Abstract: An inertial mechanism including an activating mechanism and a time delay mechanism coupled to the activating mechanism for delaying a time in which the activating mechanism is activated after a predetermined acceleration profile occurs. Where a coupling of the time delay mechanism with the activating mechanism to activate the activating mechanism initially moves away from the coupling when the predetermined acceleration profile occurs before the coupling occurs after a time delay.

Abstract: A method for depassivation of an energy storage device having an anode, a cathode and a core with an electrolyte, the method including: detecting that a first predetermined event related to a buildup of passivation has occurred with regard to the energy storage device; switching between a positive input voltage and a negative input voltage provided to the anode at a frequency sufficient to depassivate the anode; discontinuing the switching when a second predetermined event related to passivation has occurred.

Abstract: A method for actuating a device, the method including: biasing a first movable member in a first direction; biasing a second movable member in a second direction; blocking a movement of the second movable member at a position along a second path when the first and second movable members experience a first acceleration having a first magnitude and a first duration; and allowing the second movable member to move along the second path past the position when the first and second movable members experience a second acceleration having a second magnitude and a second duration, the second magnitude being less than the first magnitude and the second duration being greater than the first duration.

Abstract: A metal-gas battery including: a battery core, gas container and a movable member. The battery core including a metal anode; a non-aqueous electrolyte; a porous cathode; and terminals for providing electrical power from the battery core. The gas container being configured to hold a pressurized gas. The movable member being configured to be movable from a non-activated position in which the pressurized gas in the container is sealed from entering the porous cathode and an activated position in which the pressurized gas flows into the porous cathode to activate the battery core.

Abstract: An axe including: a lever axe head having a cutting edge, the lever axe head being configured to generate a torque and to rotate upon one of the cutting edge striking a material and the cutting edge penetrating a predetermined distance into the material; a handle having a first portion attached to the lever axe head and a second portion to be gripped by a user; and one or more springs disposed between the first portion of the handle and the lever axe head for biasing the lever axe head and handle relative to each other such that first portion of the handle and the lever axe head rotate relative to each other to absorb at least a portion of the generated torque from being transmitted to the user.

Abstract: 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.

Abstract: A mortar shell including: a metallic inner layer defining an interior of the mortar, the metallic inner layer having a grid formed on an outer surface to define a plurality of metallic fragments separated by grooves; a polymer having first reinforcing fibers disposed within the grooves; and a polymer outer layer, the polymer outer layer having second reinforcing fibers dispersed therein. The grid can be a square grid to define square shaped metallic fragments. The polymer outer layer can include a pattern of dimples formed on an outer surface. The polymer outer layer can include a solid lubricant.