1 |
Spin stabilization flying object |
JP2000511030 |
1998-08-24 |
JP2001516008A |
2001-09-25 |
ホワイト、チャールズ、オー |
(57)【要約】 練習用の飛翔体10がロールダンピング特性を増強するために縦溝120あるいは平坦部220を用い、該飛翔体は所定の時間において、ジャイロスコープ的に不安定な軌道パターンに移行させられる。 移行前までは該練習用の飛翔体はジャイロスコープ的に安定な軌道を維持しており、ロールダンピング増強部分100を有していない非練習用飛翔体の軌道を確認するための外挿を可能にする。 前記ジャイロスコープ的に不安定な軌道パターンは、練習用飛翔体110が飛ぶことのできる距離をかなり低減させ、従って練習ラウンドのために必要な領域を低減させる。 (図2参照) |
2 |
Spin stabilization flying object |
JP2000511030 |
1998-08-24 |
JP4112804B2 |
2008-07-02 |
ホワイト、チャールズ、オー |
|
3 |
JPH0445757B2 - |
JP50254884 |
1984-06-13 |
JPH0445757B2 |
1992-07-27 |
SARIBAN RIIROI JEIMUSU |
|
4 |
JPS59502116A - |
JP50371783 |
1983-11-24 |
JPS59502116A |
1984-12-20 |
|
|
5 |
소총 탄약 |
KR1019840003532 |
1984-06-22 |
KR1019870002025B1 |
1987-11-30 |
레로이제임스설리반 |
The cartridge includes a powder charge shell (11), a projectile (1) of the diameter identical with the muzzle dia. and having a plurality of grooves (4) made longitudinally parallel or spiral on the outer surface across the whole length, an axial lead cup (6) having a protuberant ring (8) of a slightly larger dia. than the dia. of the projectile (1) and being sealed within the shell (11). The cup also is provided with a plurality of fingers (9) that link to the grooves (4) and upon projection spin the cup (6) and the projectile (1) with cooperation of the rifle grooves. |
6 |
Method of making a projectile by metal injection molding |
US14862988 |
2015-09-23 |
US10081057B2 |
2018-09-25 |
Lonnie Burrow |
The present invention provides a method of making a metal ammunition projectile by metal injection molding comprising the steps of: providing a projectile mold to form a nose extending essentially symmetrically to a shoulder; and an essentially cylindrical bearing surface extending from the shoulder to a base; providing a metal injection molding feedstock comprising a powdered metal and a first binding agent and a second binding agent; injection molding the metal injection molding feedstock into the projectile mold to form a first projectile having a first size; debinding the first projectile to remove the first binding agent; and sintering the first projectile to remove the second binding agent and form a projectile having a second size. |
7 |
PROJECTILE HAVING LEADING SURFACE STANDOFFS |
US15713988 |
2017-09-25 |
US20180209770A1 |
2018-07-26 |
David B. Fricke |
A projectile has a base, a tip, and a body axis intersecting the base at a trailing axis point and the tip at a leading axis point. The projectile includes a meplat that is substantially orthogonal to the body axis and a plurality of standoffs that extend away from both the trailing axis point and the leading axis point. |
8 |
METHOD OF MAKING A PROJECTILE BY METAL INJECTION MOLDING |
US14862988 |
2015-09-23 |
US20170297112A9 |
2017-10-19 |
Lonnie Burrow |
The present invention provides a method of making a metal ammunition projectile by metal injection molding comprising the steps of: providing a projectile mold to form a nose extending essentially symmetrically to a shoulder; and an essentially cylindrical bearing surface extending from the shoulder to a base; providing a metal injection molding feedstock comprising a powdered metal and a first binding agent and a second binding agent; injection molding the metal injection molding feedstock into the projectile mold to form a first projectile having a first size; debinding the first projectile to remove the first binding agent; and sintering the first projectile to remove the second binding agent and form a projectile having a second size. |
9 |
Cartridge |
US12083319 |
2006-10-12 |
US08037830B2 |
2011-10-18 |
Udo Winter |
A cartridge is described having a cartridge casing (1) and having a propellant cup (4), which is inserted in the cartridge casing (1), receives a sub-caliber projectile (5) in a formfitting manner, and is manufactured from plastic, and which separates the projectile (5) from the propellant charge in the cartridge casing (1) and has axial separation points (15) along its jacket (10). To ensure an advantageous length for the projectile, it is suggested that the propellant cup (5) have at least one pocket (9), extending in a cavity between the projectile (5) and the cartridge casing (1) and/or in a cavity of the projectile (5) and open toward the base (2) of the cartridge casing (1), for receiving a part of the propellant charge. |
10 |
Supercavitating water-entry projectile |
US12275630 |
2008-11-21 |
US07779759B2 |
2010-08-24 |
Antonio Paulic; Alex Fu |
A water-entry projectile capable of supercavitation and spin-stabilization comprises a forward section having one or more forward stepped sections, each stepped section being symmetrical in rotation about an axis and having a radius at an aft end that is different from a radius of a front end of an adjacent rearwardly located stepped section; an aft section having an aft stepped section, the aft stepped section being symmetrical in rotation about the axis and having a maximum radius larger than a maximum radius of the forward section; and wherein the aft section is located substantially aft of a center of gravity of the projectile. |
11 |
Sub-Caliber Projectile |
US12083320 |
2006-10-12 |
US20090151593A1 |
2009-06-18 |
Udo Winter |
A sub-caliber projectile is described for insertion into a projectile receptacle (8) having a projectile head (1) and a tail unit (2) forming guide vanes (4), which engages in a cavity of the projectile head (1). To provide advantageous construction conditions, it is suggested that the guide vanes (4) of the tail unit (2) extend up into the hollow projectile head (1) and the projectile head (1) be folded clamped into the groin area between the guide vanes (4). |
12 |
Firearm ammunition having improved flight and impact characteristics |
US11255856 |
2005-10-20 |
US20070089628A1 |
2007-04-26 |
Steven Elder |
A novel bullet adapted to be discharged from a firearm at least includes: a leading edged portion; and a trailing edge portion coupled to the leading edge portion, the trailing edge portion comprising a base and spiral fins, the spiral fins adapted to channel the boundary layer during flight of the bullet, and increase longitudinal stability. |
13 |
FOREBODY VORTEX ALLEVIATON DEVICE |
US10052056 |
2002-01-17 |
US20030132351A1 |
2003-07-17 |
Garrett
M.
Billman; Patrick
J.
O'Neil |
A forebody 10 for an aeronautical vehicle 12 is provided. The forebody 10 includes an exterior wall 14 having a first half 16 and a second half 18. The first half 16 has a first porous section 20 and the second half 18 has a second porous section 24. The first half 16 and the second half 18 also have a first exterior side 22 experiencing a first fluidic pressure and a second exterior side 26 experiencing a second fluidic pressure, respectively. A hollow inner cavity 28 is fluidically coupled to the first exterior side 22 and the second exterior side 26 and allows fluid passage between the first exterior side 22 and the second exterior side 26 through the first porous section 20, the inner cavity 28, and the second porous section 24. The exterior wall 14 equalizes the first fluidic pressure with the second fluidic pressure. Additional forebodies and methods for performing the same are also provided. |
14 |
Devel small arms bullet |
US660411 |
1991-02-22 |
US5133261A |
1992-07-28 |
Charles C. Kelsey, Jr. |
A small arms projectile has a body that includes a larger cylindrical main body section and a smaller generally frusto-conical front body section with a plurality of curved veins or ribs mounted thereon that define the frusto-conical shape of the front body portion as generated during rotation of the projectile. The front body section has an annular concave surface and each of the curved ribs or veins extends between the concave surface and an outermost edge. The projectile can be used with standard pistol and rifle cartridges such as .22, .38, .45, 9 mm and the like. In a second embodiment, a shot shell sabot-projectile assembly that can be used with smooth bore guns as well as with shot guns of various gauges such as .410, .28, .20, .16, .12 and .10 for example. |
15 |
Devel small arms bullet |
US542889 |
1990-06-25 |
US5116224A |
1992-05-26 |
Charles C. Kelsey, Jr. |
A cartridge bullet having a truncated conical nose with radial rearwardly extending ribs with grooves defining curved surfaces between the ribs. |
16 |
Controlled explosive, hypervelocity self-contained round for a large
caliber gun |
US490378 |
1990-03-08 |
US5016537A |
1991-05-21 |
George T. Pinson |
A round for placement and firing in the barrel of a large caliber gun, the round comprising a cartridge case defining a cylindrical chamber having axially opposed open and closed ends, a plurality of axially-adjacent annualr explosive charges coaxially-disposed in the chamber, the charges defining a bore coaxial with said chamber and each charge being shaped to generate on detonation a predetermined shock wave in the case, a projectile disposed in the chamber proximate the closed end, the projectile having a trailing end shaped to convert shock waves generated by detonation of the annular charges to projectile acceleration, an explosive in the case for initially propelling the projectile axially through the bore toward the open, end, an electrical detonator for each annular charge responsive to an electrical signal, and a power source and circuit for generating the electrical signal in response to axial movement of the projectile in the bore. |
17 |
Projectile |
US35444040 |
1940-08-27 |
US2356227A |
1944-08-22 |
STANLEY DIEHL ELIAS |
|
18 |
Projectile for firearms |
US66303333 |
1933-03-27 |
US2014367A |
1935-09-17 |
BREEGLE DANIEL A |
|
19 |
Projectile |
US24786018 |
1918-08-01 |
US1428683A |
1922-09-12 |
KENNEDY DOUGAN |
|
20 |
Aerodynamic characteristic control method of spike missile, and spike missile |
JP2006169679 |
2006-06-20 |
JP2008002693A |
2008-01-10 |
KOBAYASHI HIROAKI; FUKIBA KATSUYOSHI; HONGO MOTOYUKI |
PROBLEM TO BE SOLVED: To provide an aerodynamic characteristic control method of a spike missile for controlling aerodynamic characteristic of a spike by a simple method without using a complicated variable mechanism and a fluid energy supply system.
SOLUTION: A plurality of injection orifices 23 communicated with an internal flow channel 22 are formed at a tip portion of a hollow shaft 2, a valve 3 for opening and closing an outlet portion 24 is disposed at the outlet portion 24 of the hollow shaft 2, and the aerodynamic characteristic of the hollow shaft 2 is properly controlled by changing one or both of an opening/closing speed Vf and a duty ratio DR of the valve 3 by a valve driver 5.
COPYRIGHT: (C)2008,JPO&INPIT |