Patent ID: 9506730
Filing Date: 2016-11-29
CPC Classification: F42B

Claim Text:
1. A fireworks aerial display shell comprising: a casing having first and second ends and defining an interior volume; a first lift charge positioned in the interior volume of the casing at a location to cause a propelling force to be directed toward the first end of the casing after the first lift charge is ignited; a second lift charge positioned in the interior volume of the casing at a location spaced apart from the first lift charge to cause a propelling force to be directed toward the second end of the casing after the second lift charge is ignited; an effects charge positioned in the interior volume of the casing between the first lift charge and the second lift charge; and fuses operatively associated with the first and second lift charges and the effects charge in a manner to ignite the first and second lift charges a period of time before igniting the effects charge.