Mar 24, 2026
A fuse-less ignition system for fireworks. An ignitor module is provided that is insertable into a firework and includes: a first end having an interface adapted to reside on an exterior surface of the firework for receiving a plug; a set of electrical contacts adapted to receive electricity from the plug; a heat element coupled to the electrical contacts and adapted to heat in response to received electricity; and a cavity adjacent to the heat element containing a pyrotechnic material, the pyrotechnic material adapted to ignite in response to a heating of the heat element.
Dec 30, 2025
An inertial mechanism including a member rotatable about an axis between activatable and activated positions, in the activatable position a first center of mass of the member is offset from the axis in a direction perpendicular to a direction of acceleration, the member having a surface; and another member rotatable about an axis between rest and activated positions, the rest position being where the second member cannot be moved into its activated position from an acceleration event, the other member also having a surface, the surfaces engage with each other when the member moves to its activated position to move the other member from its rest position to its activatable position, which is also where a center of mass of the other member is offset from its axis in the direction perpendicular to the direction of the acceleration.
