Fireworks aerial display shell and method of use
AssigneeJake's Fireworks Inc.
InventorMichael Marietta
Life of this patent
Estimating the term…
Abstract
A fireworks aerial display shell is provided with lift charges positioned at opposite ends of a casing that additionally contains an effects charge. Fuses are operatively associated with the lift charges and the effects charge in a manner to ignite the lift charges a period of time before igniting the effects charge. When either one of the ends of the casing is placed facing a closed bottom of a launch tube of a reusable mortar, the burning lift charge at that end of the casing when ignited exerts a propelling force to propel the aerial display shell upwardly out of the launch tube to an intended height before the effects charge is ignited to create a pyrotechnic visual effects display.
Claims26
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.
A consumer fireworks aerial display shell for launching into the air from within a launch tube, said fireworks aerial display shell comprising:
- a cylindrical 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;
- a lead fuse operatively associated with the first lift charge for causing ignition of the first lift charge;
- a connection fuse operatively associating the first lift charge with the second lift charge to cause ignition of the second lift charge after ignition of the first lift charge;
- and
- a delay fuse operatively associating the first lift charge with the effects charge for causing ignition of the effects charge at least 2 seconds after ignition of the first lift charge.
A consumer fireworks aerial display shell comprising:
- a cylindrical 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 separated from the first lift charge by a first partition extending across an inner cross section of the casing and positioned between the first lift charge and the effects charge and separated from the second lift charge by a second partition extending across the inner cross section of the casing and positioned between the second lift charge and the effects charge;
- a lead fuse operatively associated with the first lift charge for causing ignition of the first lift charge;
- a connection fuse operatively associating the first lift charge with the second lift charge to cause the second lift charge to ignite after the first lift charge ignites;
- and
- a delay fuse operatively associating the effects charge with the first lift charge for causing a delayed ignition of the effects charge after ignition of the first lift charge or with the second lift charge for causing a delayed ignition of the effects charge after ignition of the second lift charge.
A method of launching a consumer fireworks aerial display shell from within a launch tube and creating a pyrotechnic display at a height above the launch tube, the launch tube having a closed bottom, an open top, and a longitudinal length, said consumer fireworks aerial display shell having a cylindrical casing in which first and second lift charges are positioned at opposite first and second ends of the cylindrical casing and an effects charge is positioned between the first and second lift charges, said consumer fireworks aerial display shell being placed in the launch tube with one of said first and second ends of the cylindrical casing facing the closed bottom of the launch tube and the other of said first and second ends of the cylindrical casing facing the open top of the launch tube, said method comprising the steps of:
- igniting a lead fuse to cause ignition of the first lift charge which causes a first propelling force to be directed toward one of the ends of the cylindrical casing;
- igniting the second lift charge as a result of ignition of the first lift charge to cause a second propelling force to be directed toward the other one of the ends of the cylindrical casing,
- wherein when consumer fireworks aerial display shell is oriented in the launch tube with the first end of the cylindrical casing facing the closed end of the launch tube, the first propelling force launches the consumer fireworks aerial display shell out of the launch tube and to a height above the launch tube,
- wherein when consumer fireworks aerial display shell is oriented in the launch tube with the second end of the cylindrical casing facing the closed end of the launch tube, the second propelling force launches the consumer fireworks aerial display shell out of the launch tube and to a height above the launch tube;
- and
- igniting the effects charge as a result of the ignition of the first or second lift charge to create a pyrotechnic visual effects display a period of time after said launching of the consumer fireworks aerial display shell out of the launch tube.
Dependencies are inferred from the claim text.