US12631424 - Reusable launching tube for consumer fireworks
The patent describes a reusable launching tube designed for consumer fireworks, featuring a reinforced lower section with circumferential ribs that enhance structural integrity. This design allows for the effective launching of aerial display shells by providing a cylindrical passage that guides the fireworks during launch.
Claim 1
1 . A launching tube for launching a consumer fireworks aerial display shell having a lift change and an effects charge, the launching tube comprising: a base; an elongated tube extending from the base and comprising a tubular wall having an outer surface and an inner surface that defines a cylindrical interior passage for receiving and guiding an aerial display shell during its launch, the interior passage extending in a direction toward the base from an open end that is remote from the base; the tubular wall having a reinforcing lower section that is located between the base and an upper section of the tubular wall; and the reinforcing lower section of the tubular wall comprising: a series of spaced-apart circumferential ribs that extend in a direction outwardly from the inner surface and have a tubular wall thickness that is greater than a tubular wall thickness formed by circumferential regions that are located between adjacent ones of the circumferential ribs, wherein the tubular wall thickness of the circumferential ribs is greater than a tubular wall thickness of the upper section of the tubular wall; and circumferentially spaced-apart connecting ribs extending between adjacent pairs of the circumferential ribs. a base; an elongated tube extending from the base and comprising a tubular wall having an outer surface and an inner surface that defines a cylindrical interior passage for receiving and guiding an aerial display shell during its launch, the interior passage extending in a direction toward the base from an open end that is remote from the base; the tubular wall having a reinforcing lower section that is located between the base and an upper section of the tubular wall; and the reinforcing lower section of the tubular wall comprising: a series of spaced-apart circumferential ribs that extend in a direction outwardly from the inner surface and have a tubular wall thickness that is greater than a tubular wall thickness formed by circumferential regions that are located between adjacent ones of the circumferential ribs, wherein the tubular wall thickness of the circumferential ribs is greater than a tubular wall thickness of the upper section of the tubular wall; and circumferentially spaced-apart connecting ribs extending between adjacent pairs of the circumferential ribs. a series of spaced-apart circumferential ribs that extend in a direction outwardly from the inner surface and have a tubular wall thickness that is greater than a tubular wall thickness formed by circumferential regions that are located between adjacent ones of the circumferential ribs, wherein the tubular wall thickness of the circumferential ribs is greater than a tubular wall thickness of the upper section of the tubular wall; and circumferentially spaced-apart connecting ribs extending between adjacent pairs of the circumferential ribs.
Google Patents
https://patents.google.com/patent/US12631424
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12631424