Jun 24, 2025

US12339111 - Ignition arrangement for multiple pyrotechnic articles

Disclosed is an ignition arrangement for multiple pyrotechnic articles, which includes a moulded body including a housing for an igniter cord, and also including sides and partitions. The housing is formed by pairs of parallel ribs separated from one another, the ribs of each pair being joined under the igniter cord, thus forming the bottom of the moulded body. Aligned openings are provided in the igniter cord, having inclined opposing surfaces that converge transversely towards the inside of the igniter cord, such as to channel the ignition sparks scattered in the arrangement towards an area of an ignition fuse held against a corresponding opening, such that the fuse is ignited from the igniter cord and ignition spreads to a pyrotechnic element located outside the moulded body.

Assignee: Fernando Garcia-Gamon Antonio Manuel Anton Garcia-Gamon Valero
Inventors: Fernando Garcia-Gamon Anton, Antonio Manuel Garcia-Gamon Valero, Jose Maria Martinez Jiminez
Filing date: 2021-09-30

The patent describes an ignition arrangement for multiple pyrotechnic articles featuring a molded body that houses an igniter cord with strategically placed openings designed to channel ignition sparks towards an ignition fuse. This arrangement includes partitions to contain the sparks and a thermoplastic holder that ensures the ignition fuse is pressed against the openings for effective ignition.

Claim 1

An ignition arrangement for multiple pyrotechnic articles comprising a molded body including therein an igniter cord provided in a housing which extends lengthwise in the molded body, and at least one opening in the igniter cord, said igniter cord having access to the exterior of the housing; wherein said at least one opening is included in a series of elongated openings spaced along the igniter cord in lengths proportional to acceleration or delay for ignition propagation, and said at least one opening has at least two opposing inclined surfaces which converge inside of said igniter cord to direct propagation of ignition sparks from the opening to the exterior of the housing and provide ignition to an ignition fuse of at least one pyrotechnic article located outside of the molded body; wherein each opening of said series of elongated openings present in the igniter cord is contained in said molded body, bounded by partitions extending transversely in the housing and flanks extending parallel to the housing, to define a cavity which prevents projection of ignition sparks emitted from inside the opening in the igniter cord to the exterior of the molded body; and a molded body including therein an igniter cord provided in a housing which extends lengthwise in the molded body, and at least one opening in the igniter cord, said igniter cord having access to the exterior of the housing; wherein said at least one opening is included in a series of elongated openings spaced along the igniter cord in lengths proportional to acceleration or delay for ignition propagation, and said at least one opening has at least two opposing inclined surfaces which converge inside of said igniter cord to direct propagation of ignition sparks from the opening to the exterior of the housing and provide ignition to an ignition fuse of at least one pyrotechnic article located outside of the molded body; wherein each opening of said series of elongated openings present in the igniter cord is contained in said molded body, bounded by partitions extending transversely in the housing and flanks extending parallel to the housing, to define a cavity which prevents projection of ignition sparks emitted from inside the opening in the igniter cord to the exterior of the molded body; and a holder formed by a thermoplastic plate that is folded to fit into the cavity, and which forces a region of the ignition fuse against said at least one opening.

Google Patents

https://patents.google.com/patent/US12339111

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12339111