Abstract:
A pyrotechnic device including a combustion chamber including a wall, the combustion chamber containing combustible powder; an ignition source adapted to ignite said combustible powder within said combustion chamber; wherein the wall of the combustion chamber is adapted to burst at a predetermined pressure caused by combustion of the combustible powder; wherein the combustion chamber is disposed within a launch structure beneath a projectile and wherein a preselected amount of free space volume is disposed between said combustion chamber and said projectile.
Abstract:
A combined firework is disclosed. In the combined firework, several tubular holes whose central longitudinal axes are parallel to each other are uniformly distributed in a body, the tubular holes have openings upward and bottom ends closed. The closed end of the bottom of each tubular hole is provided with two small through holes penetrating through the bottom of the body and respectively provided with an inward fuse and an outward fuse in series connection. The body, the tubular holes and the small through holes thereof are an integrally molded structure. On the bottom in the tubular hole propellant powder is provided and connected with the outward fuse and the inward fuse. On the propellant powder an inner cylinder or effect powder is provided.
Abstract:
A simple device for generating pyrotechnic effects, in which an enveloping body (11) is formed from a plurality of interconnected plate-like layers between which the pyrotechnic charges (10) as well as the igniter means (12) are embedded. A configuration of the igniter means (12) as heating resistors, in particular as heating resistors whose conductors run in a meandering path. Such igniter means (12) are particularly suitable for use in the formation of a plate-like enveloping body consisting of a plurality of layers. By virtue of this enveloping body, the device assumes a shape comparable to that of a credit card or bank card.
Abstract:
An ignition system for 1.4 g or consumer fireworks includes a base to which the fireworks are secured to prevent tipping thereof during shooting. The base is secured to the ground or other surface for stability. Preferably, the base is part of a container which encloses the fireworks in a pre-mounted fashion to protect the fireworks from the elements. Electrical matches or E-matches are used to ignite the fireworks and are controlled by an electrical control at a safe distance from the fireworks during the firing thereof.
Abstract:
An ignition system for 1.4 g or consumer fireworks includes a base to which the fireworks are secured to prevent tipping thereof during shooting. The base is secured to the ground or other surface for stability. Preferably, the base is part of a container which encloses the fireworks in a pre-mounted fashion to protect the fireworks from the elements. Electrical matches or E-matches are used to ignite the fireworks and are controlled by an electrical control at a safe distance from the fireworks during the firing thereof.
Abstract:
Group firing system for firework unit, wherein it has 1–2 paper fuse tubes, which are assembled with other shot tubes. While both ends of the paper fuse tubes have male socket and female socket, so each firework unit could be connected to a firework group through soft fuse hose which contains a fuse inside. There are two firing systems, i.e. series connection and parallel connection.