Fireworks aerial display shell and method of use
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F42B-004/14
F42B-004/02
F41F-001/06
출원번호
US-0015922
(2016-02-04)
등록번호
US-9506730
(2016-11-29)
발명자
/ 주소
Marietta, Michael
출원인 / 주소
Jake's Fireworks Inc.
대리인 / 주소
Hovey Williams LLP
인용정보
피인용 횟수 :
2인용 특허 :
4
초록▼
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 t
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.
대표청구항▼
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 c
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; andfuses 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. 2. The fireworks aerial display shell of claim 1, wherein the period of time is between 2 and 5 seconds. 3. The fireworks aerial display shell of claim 1, wherein the fuses comprise a lead fuse operatively connected to the first lift charge for causing ignition thereof following burning of the lead fuse, a connection fuse operatively connecting the first lift charge with the second lift charge to cause the second lift charge to be ignited as a result of ignition of the first lift charge, and a delay fuse operatively connecting the effects charge with either the first lift charge or the second lift charge to cause the effects charge to be ignited as a result of burning of the first lift charge or the second lift charge. 4. The fireworks aerial display shell of claim 3, including an outer wrap surrounding said casing, wherein said connection fuse is positioned between the outer wrap and the casing and said lead fuse extends outside said outer wrap. 5. The fireworks aerial display shell of claim 1, including a first partition extending across an inner cross section of the casing and positioned between the first lift charge and the effects charge and a second partition extending across the inner cross section of the casing and positioned between the second lift charge and the effects charge. 6. The fireworks aerial display shell of claim 5, wherein the first lift charge is positioned between the first partition and a first retaining disc extending across the inner cross section of the casing and the second lift charge is positioned between the second partition and a second retaining disc extending across the inner cross section of the casing. 7. The fireworks aerial display shell of claim 5, wherein said fuses include a delay fuse operatively connecting the effects charge with the first lift charge and extending through said first partition. 8. The fireworks aerial display shell of claim 7, wherein said first partition comprises a layer of compacted clay material. 9. The fireworks aerial display shell of claim 8, wherein the second partition comprises a layer of compacted clay material sandwiched between two discs. 10. The fireworks aerial display shell of claim 1, wherein the effects charge comprises a break charge and effects producing stars. 11. The fireworks aerial display shell of claim 1, wherein the effects charge produces upon ignition a spherical radial pattern of burning stars. 12. The fireworks aerial display shell of claim 1, wherein the casing comprises paper. 13. The fireworks aerial display shell of claim 1, wherein the first lift charge and the second lift charge comprise granulated black powder. 14. The fireworks aerial display shell of claim 1, wherein the first lift charge and the second lift charge each comprises 7 to 9 grams of black powder. 15. The fireworks aerial display shell of claim 14, wherein less than 60 grams total of pyrotechnics is present in the interior volume of the casing and the lead fuse. 16. The fireworks aerial display shell of claim 1, wherein the fuses comprise a lead fuse operatively connected to the first lift charge and to the second lift charge for causing ignition thereof following lighting of the lead fuse and a delay fuse operatively connecting the effects charge with either the first lift charge or the second lift charge to cause the effects charge to be ignited as a result of ignition of the first lift charge or the second lift charge. 17. The fireworks aerial display shell of claim 1, wherein the casing is cylindrical and has a longitudinal length of between 90 and 110 mm and an outside diameter of between 40 and 44 mm. 18. The fireworks aerial display shell of claim 17, wherein the casing has an inside diameter of between 34 and 36 mm. 19. 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; anda 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. 20. The consumer fireworks aerial display shell of claim 19, wherein said lead fuse has a length that is at least three times as long as a longitudinal length of the cylindrical casing. 21. 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; anda 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. 22. 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; andigniting 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. 23. The method of claim 22, wherein the effects charge is ignited more than 2 seconds after ignition of the first and second lift charges. 24. The method of claim 23, wherein the second lift charge is ignited less than 1 second after ignition of the first lift charge. 25. The method of claim 24, wherein the effects charge is ignited by a delay fuse operatively connecting the effects charge with the first lift charge. 26. The method of claim 25, wherein the second lift charge is ignited by a connection fuse operatively connecting the first lift charge with the second lift charge.
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이 특허에 인용된 특허 (4)
Siegler Jean P. (Monteux FRX) Chastel Jean-Pierre (Villes-sur-Auzol FRX), Firework bomb with integral combustion.
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