[특허]Mortar shell ring tail and associated method

The Boeing Company

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특허 상세정보

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Mortar shell ring tail and associated method

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F42B-010/00
미국특허분류(USC)	244/003.3
출원번호	US-0793984 (2004-03-05)
등록번호	US-7262394 (2007-08-28)
발명자 / 주소	August,Henry
출원인 / 주소	The Boeing Company
대리인 / 주소	Alston & Bird LLP
인용정보	피인용 횟수 : 11 인용 특허 : 54

초록
▼

There is provided a ring tail for a ballistic projectile and an associated method that facilitate maneuverability of the ballistic projectile. The ring tail comprises a ring member having a generally cylindrical wall and at least one rod joined to an aft section of the ballistic projectile and the ring member. The rod defines an adjustable length, wherein an actuation device joined to the at least one rod adjusts the length to thereby maneuver the ballistic projectile during flight. The ring tail may include generally radially oriented panels and may also include a second ring member joined to the distal ends of the panels such that the ring members are coaxial. Once the projectile has been launched, the ring member extends aftward to provide aerodynamic stability, which may be measured by a guidance sensor in electronic communication with the actuation device that adjusts the length of the at least one rod.

대표
청구항
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That which is claimed: 1. A ring tail for facilitating maneuverability of a ballistic projectile launched from a barrel to define a flight path, the ring tail comprising: a ring member having a wall with a forward end and an aft end opposed thereto, wherein during the flight path of the ballistic projectile air is capable of flowing around and through the ring member; at least one rod having a forward portion structured and arranged for joining to an aft section of the ballistic projectile and an aft portion joined to the forward end of the ring member, wherein the at least one rod has a length as measured between the forward portion and the aft portion; and an actuation device operably joined to the at least one rod, wherein the actuation device is capable of adjusting the length of the rod during the flight path of the ballistic projectile subsequent to the launch of the ballistic projectile from the barrel to thereby maneuver the ballistic projectile; wherein the ring member is located in a first axial position relative to the ballistic projectile prior to launch of the ballistic projectile and is located in a second axial position relative to the ballistic projectile subsequent to launch of the ballistic projectile, such that the first axial position of the ring member is axially closer to the ballistic projectile relative to the second axial position. 2. A ring tail according to claim 1 wherein the ring member defines a generally cylindrical wall. 3. A ring tail according to claim 2 wherein the ring member defines an inner surface and an outer surface opposed thereto, and wherein the ring tail further comprises a plurality of generally radially oriented panels joined to the outer surface of the ring member. 4. A ring tail according to claim 3, further comprising a second ring member having a generally cylindrical wall with an inner surface and an outer surface opposed thereto, wherein the plurality of generally radially oriented panels define a distal end opposite the outer surface of the first ring member, and wherein the inner surface of the second ring member is joined to the distal end of the plurality of generally radially oriented panels such that the first ring member and second ring member are coaxial. 5. A ring tail according to claim 3 wherein the ring member and generally radially oriented panels comprise a unitized structure of composite material. 6. A ring tail according to claim 1, further comprising an antenna mounted to the ring member for transmission of data. 7. A ballistic projectile launched from a barrel to define a flight path, the ballistic projectile comprising: a mortar shell defining a forward section and an aft section opposed thereto; and a ring tail comprising: a ring member having a wall with a forward end and an aft end opposed thereto, wherein during the flight path of the ballistic projectile air is capable of flowing around and through the ring member; at least one rod having a forward portion joined to an aft section of the mortar shell and an aft portion joined to the forward end of the ring member, wherein the at least one rod has a length as measured between the forward portion and the aft portion; and an actuation device operably joined to the at least one rod, wherein the actuation device is capable of adjusting the length of the rod during the flight path of the ballistic projectile subsequent to the launch of the ballistic projectile from the barrel to thereby maneuver the mortar shell; wherein the ring member is located in a first axial position relative to the ballistic projectile prior to launch of the ballistic projectile and is located in a second axial position relative to the ballistic projectile subsequent to launch of the ballistic projectile, such that the first axial position of the ring member is axially closer to the ballistic projectile relative to the second axial position. 8. A ballistic projectile according to claim 7 wherein the ring member defines a generally cylindrical wall. 9. A ballistic projectile according to claim 8, further comprising a plurality of generally radially oriented panels joined to the outer surface of the ring member. 10. A ballistic projectile according to claim 9, further comprising a second ring member defining a generally cylindrical wall with an inner surface and an outer surface opposed thereto, wherein the first ring member defines a central axis, the second ring member defines a central axis, and the plurality of generally radially oriented panels define a distal end opposite the outer surface of the first ring member, and wherein the inner surface of the second ring member is joined to the distal end of the plurality of generally radially oriented panels such that the first ring member and second ring member are coaxial. 11. A ballistic projectile according to claim 9 wherein the ring member and generally radially oriented panels comprise a unitized structure of composite material. 12. A ballistic projectile according to claim 7, further comprising a guidance sensor mounted to the mortar. 13. A ballistic projectile according to claim 12, further comprising an antenna mounted to the ring member for transmission of data from the guidance sensor of the mortar.

인용문헌 (54)

이 특허를 인용한 특허 (11)

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Mortar shell ring tail and associated method

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인용문헌 (54)

이 특허를 인용한 특허 (11)

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특허 상세정보

Mortar shell ring tail and associated method

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인용문헌 (54)

이 특허를 인용한 특허 (11)

IPC 상위 출원인

과제정보

상세정보조회

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IPC 상세정보(version : 201201)

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