[특허]Ring airfoil glider expendable cartridge and glider launching method

Scarr, Kimball Rustin

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특허 상세정보

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Ring airfoil glider expendable cartridge and glider launching method

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F42B-010/36
미국특허분류(USC)	102/503; 102/502
출원번호	US-0189147 (2011-07-22)
등록번호	US-8327768 (2012-12-11)
발명자 / 주소	Scarr, Kimball Rustin
출원인 / 주소	Scarr, Kimball Rustin
대리인 / 주소	Daniluck, John V.
인용정보	피인용 횟수 : 6 인용 특허 : 115

초록
▼

My Ring Airfoil Glider Expendable Cartridge and Glider Launching Method is form launching a reduced caliber ring airfoil glider from a conventional grenade launcher barrel with preferred application for less lethal use. A caseless ammunition base contains a primer communicating with a propellant in a rupture disk sealed chamber with a vent used to create, seal and channel propelling gas into a space behind a sabot mounted on a central guide on the base, whereupon releasing the gas, the sabot aligns, seals, pushes and rotates the glider in passage down the barrel, to a point of maximum velocity, whereon, the propelling gas is vented ahead of the glider by the central passage in the sabot as it leaves the guide, whereupon, the bore decelerates the sabot by friction freeing the glider to fly down the bore centered by a turbulent boundary layer of air until it exits the muzzle.

대표
청구항
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1. A munition for launching in a barrel of a breech loading gun, comprising: a circular base supported within the breech, said base including a vent for directing compressed gas toward a sabot;a generally cylindrical rod extending toward a muzzle of the barrel from the center of said base;a ring airfoil projectile adapted and configured to be launched from within the barrel;a sabot having a central passage that accepts therein said rod, the central passage and said rod being in sliding contact, said sabot having two opposite surfaces with one surface facing said base and being in fluid communication with the vent and the opposing surface being adapted and configured to push said projectile;wherein compressed gas flowing through the vent acts on the one surface of said sabot to push said projectile through the barrel;said projectile separates from the sabot prior to reaching the muzzle of the barrel. 2. The munition of claim 1 wherein said rod has a rifled outer surface, said sabot being guided by the rifling of said rod, and movement of said sabot along said rod spins said sabot. 3. The munition of claim 1 wherein said projectile has a maximum outer diameter that is smaller than the inner diameter of the barrel. 4. The munition of claim 1 wherein said projectile is adapted and configured for reduced lethality, and said projectile exits the muzzle with a velocity greater than ninety six meters per second. 5. The munition of claim 1 wherein projectile separate from each other and said projectile flies within at least a portion of the length of the barrel. 6. The munition of claim 1 wherein said projectile has a substantially open central passage. 7. The munition of claim 1 wherein said projectile has a trailing edge and said sabot is adapted and configured such that said sabot pushes said projectile substantially with line contact at the trailing edge. 8. A munition for launching in a barrel of a breech loading gun, comprising: a circular base supported within the breech;a rod protruding from the center of said base and extending toward a muzzle of the barrel, said rod having a rifled outer surface;a ring airfoil projectile adapted and configured to be launched from within the barrel, said projectile having a maximum outer diameter that is smaller than the inner diameter of the barrel;a sabot having a central passage that accepts therein said rod, said sabot being guided by the rifling of said rod, said sabot being adapted and configured to push said projectile; anda source of compressed gas;wherein compressed gas provides a pressure force to push said sabot along said rod, the rifling of said rod interacting with the central passage to spin said sabot, said sabot spinning said projectile and pushing said projectile through the barrel, said sabot and said projectile separating from each other within the barrel. 9. The munition of claim 8 wherein said projectile has a leading edge and a trailing edge and a curved outer surface in between, the maximum outer diameter being intermediate of the leading edge and the trailing edge. 10. The munition of claim 8 wherein the clearance between the barrel inner diameter and the ring airfoil maximum outer diameter is greater than about one tenth of a millimeter and less than about two millimeters. 11. The munition of claim 8 wherein said projectile has a trailing edge and said sabot is adapted and configured such that said sabot pushes said projectile substantially with line contact at the trailing edge. 12. The munition of claim 8 wherein said projectile and said sabot are adapted and configured such that said sabot pushes said projectile toward the muzzle and said sabot does not restrain said projectile after separating from said projectile within the barrel. 13. The munition of claim 8 wherein said projectile is adapted and configured for reduced lethality, and said projectile exits the muzzle with a velocity greater than ninety six meters per second. 14. The munition of claim 8 wherein said projectile has a substantially open central passage. 15. The munition of claim 8 wherein the projectile has a leading end and which further comprises a cover in front of the leading end of the projectile, wherein said cover ruptures in the barrel to release said projectile. 16. A reduced lethality munition for launching in a barrel of a breech loading gun, comprising: a circular base supported within the breech, said base having a periphery in contact with the barrel;a generally cylindrical rod extending toward the muzzle of the barrel from the center of said base;a ring airfoil projectile adapted and configured to be launched from within the barrel, said projectile having a maximum outer diameter that is smaller than the inner diameter of the barrel, the maximum diameter being more than about 35 millimeters and less than about 40 millimeters, the projectile having a weight that is less than about fifteen grams;a sabot having a central passage that is in sliding contact with said rod, said sabot being adapted and configured to push said projectile; anda source of compressed gas;wherein the compressed gas provides a pressure force to push said sabot along said rod such that said projectile exits the muzzle with a velocity of more than about ninety meters per second;wherein said projectile separates from said sabot prior to reaching the muzzle end of the barrel. 17. The munition of claim 16 wherein said projectile has a trailing edge and said sabot is adapted and configured such that said sabot pushes said projectile substantially with line contact at the trailing edge. 18. The munition of claim 16 wherein said projectile and said sabot are adapted and configured such that said sabot pushes said projectile toward the muzzle and said sabot does not restrain said projectile after separating from said projectile within the barrel.

이 특허에 인용된 특허 (115)

이 특허를 인용한 특허 피인용횟수: 6

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특허 상세정보

Ring airfoil glider expendable cartridge and glider launching method

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이 특허에 인용된 특허 (115)

이 특허를 인용한 특허 피인용횟수: 6

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Ring airfoil glider expendable cartridge and glider launching method

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대표청구항 ▼

이 특허에 인용된 특허 (115)

이 특허를 인용한 특허 피인용횟수: 6

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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