101 |
CLAY-PIGEON-LIKE PROJECTILE FOR CROWD CONTROL |
US13624936 |
2012-09-23 |
US20140083402A1 |
2014-03-27 |
Ofer Fridman; Yariv Ben Yehuda |
A crowd control projectile includes a payload carrier, an incapacitating agent inside the payload carrier, and an activating mechanism for activating the incapacitating agent. The activating mechanism includes a sensor and a timer. The timer delays the activation until a predetermined delay after the sensor senses that the projectile has been launched. Alternatively, the activating mechanism includes a receiver for receiving an activation signal after the projectile has been launched. Preferably, the projectile has the shape of a clay pigeon. A launcher of such a projectile includes a communication mechanism for transmitting a timing signal or an activation signal to the projectile and an arm for launching the projectile by direct contact. To control a crowd, the projectile is launched over the crowd by direct contact with a solid arm and the activating mechanism is used to activate the incapacitating agent when the projectile is above the crowd. |
102 |
Projectile guidance kit |
US12928942 |
2010-12-22 |
US08552349B1 |
2013-10-08 |
Steven B. Alexander |
Apparatus and methods provide a guidance kit that can be attached to a projectile, such as screwed into a fuze well of an artillery round or a mortar round. A portion of the guidance kit is configured to spin constantly during flight. In the context of an artillery round that is shot from a rifled barrel, the direction of the spin torque is counter to the direction of the spin induced by the rifled barrel. Control surfaces are present in the portion of the guidance kit that spins constantly during flight. While the portion spins, the control surfaces are actuated to steer the projectile towards an intended target via, for example, GPS. |
103 |
Steerable spin-stabilized projectile and method |
US12329699 |
2008-12-08 |
US08319162B2 |
2012-11-27 |
James W. Mccool |
A spin-stabilized projectile has its course controlled by counter rotation of an internal mass about a longitudinal axis of the projectile. The internal mass may be a boom within a cavity of an external body of the projectile. The internal mass may be tiltable relative to the hull, and may be configured to counter rotate relative to the hull about the axis of the hull. The counter-rotation may keep the boom in a substantially same orientation relative to the (non-spinning) environment outside of the projectile. The positioning of the boom or other weight within the projectile thus may be used to steer the projectile, by providing an angle of attack to the projectile hull. A magnetic system may be used to counter rotate the boom or other weight. The projectile may have a laser guidance system to aid in steering the projectile toward a desired aim point. |
104 |
Spin Stabilized And/ Or Drag Stabilized, Blunt Impact Non-Lethal Projectile |
US13433483 |
2012-03-29 |
US20120291655A1 |
2012-11-22 |
Kenneth R. Jones |
A spin stabilized and drag-stabilized, blunt impact, non-lethal projectile is provided, having a rigid base and rigid windscreen, with a compressible body therebetween, thereby enabling use thereof in high pressure/compression firing mechanisms, but yet operable to compress/deform upon impact with a target. In particular, a spin stabilized, blunt impact, non-lethal projectile is provided having a rigid windscreen and base, with a compressible body therebetween which compresses/deforms upon impact with a target. In addition, a drag-stabilized version thereof is provided, having canted fins thereon so as to control flight of the projectile via the imposition of drag thereon. Additionally, the projectile is capable of carrying agents, such as crowd control and marking agents, in an agent reservoir, and ejecting same onto a target upon impact. |
105 |
Rotation rate tracking system using GPS harmonic signals |
US11879873 |
2007-07-19 |
US08260478B1 |
2012-09-04 |
Gary B. Green; Francis Keith Scherrer; James H. Doty |
A spin rate tracking system comprising a guidance system suitable for adjusting a flight path of a vehicle based on a spin rate of the vehicle, a signal reception system configured for receiving signal information from a global navigation system wherein a spin rate of the vehicle is derived from a substantially harmonic pattern produced amongst a global navigation signal. |
106 |
Spin nock |
US12931894 |
2011-02-14 |
US08257208B2 |
2012-09-04 |
Martin Dale Harding |
A nock for promoting a natural spin on an arrow shaft prior to the nock separating from a bowstring includes a nock segment possessing a bowstring rest portion, and a base portion which is coupled to a retaining portion which is attached to the end of an arrow shaft. The nock segment freewheels independently of the retainer and the arrow shaft to permit the fletching moving through the air to act on the shaft producing a natural spin to the shaft prior to its release from the bow. |
107 |
ROLL ISOLATION BEARING |
US12500333 |
2009-07-09 |
US20120217338A1 |
2012-08-30 |
William M. Flood; Paul M. O'Brien; Eugene W. Carlson |
A GNC device for use with a projectile, includes a rotating GNC portion and a non-rotating GNC portion, the rotating GNC portion being fixedly coupled to a projectile body, at least one bearing being interposed between the rotating GNC portion and a non-rotating GNC portion, the at least one bearing permitting the rotating GNC portion to rotate with respect to the non-rotating GNC portion. In a GNC device for use with a projectile, a method is further included. |
108 |
Frangible Projectile, And Weapon Cartridge Containing Same |
US13011704 |
2011-01-21 |
US20120180686A1 |
2012-07-19 |
Kenneth R. Jones; Frank J. Dindl |
A frangible projectile, and weapon cartridge containing same, is provided, in which the frangible projectile is comprised of a hollow outer body composed of, for example, a plastic or polymeric material, configured to provide a payload material. Preferably, the hollow outer body has an interior surface having a divider formed or disposed therein, for controlling the movement of the payload material after firing. The hollow outer body of the frangible projectile, upon impact, rapidly fragments upon impact into relatively harmless pieces, and releases/mixes the payload material. However, the payload material may be chosen to provide sufficient mass, and accordingly sufficient kinetic energy, to provide desired target effects, such as powder metals. Alternatively, payload materials, such as reactive chemical components, marking agents, chemiluminescent compositions, incapacitants, multi component reactive compositions, etc., preferably contained within one or more payload containers, are provided. |
109 |
PROJECTILE FOR USE WITH A RIFLED BARREL |
US13402661 |
2012-02-22 |
US20120152145A1 |
2012-06-21 |
Todd KUCHMAN |
A multi-component projectile is disclosed. The multi-component projectile is designed for use with a rifled barrel and is configured to, upon exiting the rifled barrel, utilize the spinning forces imparted on the projectile while in the barrel to expand until the multi-component projectile achieves a predetermined pattern that is larger than an area of the barrel from which the projectile was fired. Methods of manufacturing the multi-component projectile are also disclosed. |
110 |
Method and device for determination of roll angle |
US11741063 |
2007-04-27 |
US07908113B2 |
2011-03-15 |
Olof Lönn |
The invention relates to a method and device for the determination of the roll angle φ of a rotating body, such as a shell, utilizing sensors for the detection of rotation signals in a body-fixed coordinate system. According to the invention, a new filter device is proposed to handle moment interferences to which the body is subjected, for example, caused by wind turbulence in the atmosphere or similar phenomena. The interferences are eliminated by useful measurement signals emitted by the sensors being mixed down to the frequency zero and by the sensors' rotation signals thereafter being low-pass filtered. |
111 |
Hybrid spin/fin stabilized projectile |
US11821759 |
2007-06-24 |
US07849800B2 |
2010-12-14 |
Andrew J. Hinsdale; Richard Dryer |
A hybrid spin/fin stabilized projectile. The novel projectile includes a body, a first mechanism for spin stabilizing the body during a first mode, and a second mechanism for fin stabilizing the body during a second mode. In an illustrative embodiment, the projectile includes a rifling band adapted to engage with rifling in a gun during gun launch to impart a spin rate compatible with spin stabilization to the projectile, and a plurality of folding fins attached to an aft end of the body. A fin locking mechanism locks the fins in an undeployed position during the first mode and unlocks to deploy the fins at a predetermined time to switch the projectile to fin stabilization during the second mode. The projectile also includes a mechanism for reducing the spin of the projectile to a rate compatible with guided flight during the second mode. |
112 |
Hybrid spin/fin stabilized projectile |
US11821759 |
2007-06-24 |
US20100213307A1 |
2010-08-26 |
Andrew J. Hinsdale; Richard Dryer |
A hybrid spin/fin stabilized projectile. The novel projectile includes a body, a first mechanism for spin stabilizing the body during a first mode, and a second mechanism for fin stabilizing the body during a second mode. In an illustrative embodiment, the projectile includes a rifling band adapted to engage with rifling in a gun during gun launch to impart a spin rate compatible with spin stabilization to the projectile, and a plurality of folding fins attached to an aft end of the body. A fin locking mechanism locks the fins in an undeployed position during the first mode and unlocks to deploy the fins at a predetermined time to switch the projectile to fin stabilization during the second mode. The projectile also includes a mechanism for reducing the spin of the projectile to a rate compatible with guided flight during the second mode. |
113 |
Spin-stabilized correctible-trajectory artillery shell |
US11950875 |
2007-12-05 |
US07584922B2 |
2009-09-08 |
Klaus Bär; Karl Kautzsch |
A spin-stabilized correctible-trajectory artillery shell has a generator in the rotation-decoupled engagement region between a canard guidance unit and its munition body. The generator can be switched over to avoid load fluctuations between an adjusting motor and a substitute load. In order to avoid an additional heat source in the interior of the guidance unit the substitute load is in the form of an electrical resistance on, at or in canard surfaces behind the afflux flow edges. The canard surfaces are preferably formed on anti-spin canards which are not adjustably mounted. |
114 |
HELICAL ARROW FLETCHING |
US11695097 |
2007-04-02 |
US20080242456A1 |
2008-10-02 |
Steven Harsh |
An arrow fletching system has at least one vane or feather that is helically shaped. The helical vane or feather makes a sharp deviation of at least one-eighth, but no more than one-fourth (¼) of an inch from the longitudinal axis of the arrow shaft. The helical vane or feather improves the flight of the arrow by reducing the amount of sound emitted during flight. Additionally, the helical vane or feather causes a high rate of rotation of the arrow during flight to increase the stability during flight, thereby enabling increased accuracy and increasing the rate of speed of the arrow. Also, the helical vane or feather provides an improved surface and shape for the user to grasp, thereby enhancing the overall effectiveness of the arrow. |
115 |
Archery arrow rotation prior to separation from bow |
US10374196 |
2003-02-26 |
US06877500B1 |
2005-04-12 |
Anthony Scott Hollars; Jon Marc Edwards |
The arrow rotation device of the present invention substantially reduces the described disadvantages of prior art arrow rotation systems by inducing a rotation on the arrow shaft prior to leaving the bow and entering free flight. It is an object of the present invention to provide a means for inducing a rotational velocity about the longitudinal axis of an arrow as it travels through the bow over the releasing range. It is another object of this invention to provide an arrow rotating system that can be used with existing archery bows with minimal modifications or available as a factory option (OE). It is a further object of the present invention to provide a means for mechanically inducing a rotational velocity about the longitudinal axis of an arrow through a constant or a variable rotational acceleration to achieve a desired rotational velocity prior to separation of an arrow from the bow. |
116 |
Self-contained round having ring airfoil projectile and launcher therefor |
US09996045 |
2001-11-28 |
US20030097952A1 |
2003-05-29 |
David
Findlay |
A self-contained round of ammunition has a cartridge casing including a tubular body defining a cylindrical rifled bore and a base threadably attached to the casing body and forming a closure for a breech end of the rifled bore. A sabot which carries a ring airfoil projectile is constrained for limited axial movement within and relative to the bore from a loaded position adjacent the base to a fired position wherein an annular arresting lip integrally formed at the muzzle end of the cartridge body engages an annular abutment surface on the sabot. The lip defines a cylindrical muzzle opening having a diameter smaller than the diameter of the bore and larger than the major diameter of the projectile which may pass freely there through. The sabot in its loaded position cooperates with the base to form a pressure chamber therebetween for receiving gasses of explosion generated by a powder charge contained within the base and in communication with a primer mounted in the base. A bore engaging ring on the sabot has lands and grooves complementing associated portions of lands and grooves defining the rifling within the bore. When the round is fired the moving sabot is abruptly halted within the bore by the arresting lip at the muzzle end causing the spinning ring airfoil projectile to separate from the sabot and leave the cartridge along a flight path. A launcher for firing the self contained round includes a detent member which cooperates with a detent notch in the cartridge base to restrain the cartridge against angular movement about its axis and relative to the launcher when it is fired. |
117 |
Method for autonomous guidance of a spin-stabilized artillery projectile
and autonomously guided artillery projectile for realizing this method |
US156042 |
1998-09-07 |
US6135387A |
2000-10-24 |
Wolfgang Seidel; Frank Guischard |
A method for the autonomous guidance of a spin-stabilized artillery projectile (2; 25) toward a target (12). To ensure that an autonomously guided, spin-stabilized artillery projectile (2; 25) hits a target (12) with high precision, even at distances of .gtoreq.35 km, previously determined target data are transmitted to the projectile (2; 25) and stored therein before it is fired, and, following the firing of the projectile (2; 25), these stored data are compared with projectile position data, detected with the aid of a satellite navigational receiving station (23). The correction data resulting from this comparison are then used for the projectile (2; 25) guidance. Shortly before reaching the guidance phase, the velocity of the projectile is reduced by the use of spin-stabilized brakes and the projectile flight is changed for purposes of guidance from a spin-stabilized to a fin-stabilized flight state, wherein the projectile (2; 25) is then guided aerodynamically by means of rotating fins (9), arranged on the nose side, which can swing out, and wherein the spin-stabilized brakes function as lift surfaces once they are locked in place. |
118 |
Stabilizing vanes for archery arrows |
US781881 |
1997-01-10 |
US5897449A |
1999-04-27 |
Kent S. Roberts; Brent J. Roberts |
A stabilizing vane for use with an archery arrow includes an elongate vane body with an inclined surface attached thereto. The inclined surface is confined substantially within the upper portion of the vane body spaced from the arrow shaft so as to be cooperable with an arrow rest. The inclined surface can be oriented to optimize arrow rotation and centering. |
119 |
Electro-mechanical roll control apparatus and method |
US221358 |
1994-03-31 |
US5452864A |
1995-09-26 |
Robert L. Alford; John G. Rupert |
An apparatus and method for controlling roll of a projectile is disclosed. The projectile includes two sections decoupled about a roll axis. The front section includes a stator and the rear section includes a rotor and a static spin imparting member. The spin rate of the projectile is controlled by utilizing the rotor and stator in combination as a generator to brake the spin or as a motor to establish spin. |
120 |
Spinning ramjet vehicle with a non-spinning combustor |
US146914 |
1988-01-22 |
US4796534A |
1989-01-10 |
Ameer G. Mikhail |
A spinning ramjet vehicle is provided wherein the combustion process is enced. An injector intakes air and discharges it to an internal combustor. The combustor is separated from the vehicle body and allowed to rotate independently of spin imparted to the vehicle. The combustion process is enhanced as the spin rate of the combustor is less than that of the vehicle. |