2-D projectile trajectory correction system and method
January 15, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3358559 3504869 3759466 Homing projectile Auxiliary control of vehicle direction Doppler countermeasure device Retainer/release mechanism for use on fin stabilized gun fired projectiles Flat trajectory projectile Canard control assembly for a projectile Modular aerodynamic gyrodynamic intelligent controlled projectile and method of operating same InventorsAssigneeApplicationNo. 10758522 filed on 01/15/2004US Classes:244/3.27, Collapsible244/3.1, MISSILE STABILIZATION OR TRAJECTORY CONTROL102/490, With range increasing means102/400, WITH EXTENDABLE ARMS89/1.818, Including an auxiliary rocket-launching charge244/3.21, Attitude control mechanisms244/3.28, Longitudinally rotating244/3.22, Fluid reaction type244/225, With dual purpose surface structure (e.g., elevons)244/3.29, Radially rotating244/3.26, Sliding244/3.24, Externally mounted stabilizing appendage (e.g., fin)244/3.23, Stabilized by rotation244/3.15, Automatic guidance102/501, PROJECTILES89/1.8ROCKET LAUNCHINGExaminersPrimary: Collins, Timothy D.Attorney, Agent or FirmInternational ClassF42B 10/32AbstractA 2-D correction system uses intermittent deployment of aerodynamic surfaces to control a spin or fin stabilized projectile in flight; correcting both crossrange and downrange impact errors. Intermittent surface deployment develops rotational moments, which create body lift that nudge the projectile in two-dimensions to correct the projectile in its ballistic trajectory. In low spin rate projectiles (“fin stabilized”), the rotational moment directly produces the body lift that moves the projectile. In high spin rate projectiles (“spin stabilized”), the rotational moment creates a much larger orthogonal precession that in turn produces the body lift that moves the projectile. The aerodynamic surfaces are suitably deployed over multiple partial roll cycles at precise on (deployed) and off (stowed) positions in the cycle to nudge the projectile up or down range or left or right cross range until the desired ballistic trajectory is restored.Field of SearchMISSILE STABILIZATION OR TRAJECTORY CONTROLRemovable Attitude control mechanisms Sliding Stabilized by rotation Fluid reaction type Longitudinally rotating Radially rotating Externally mounted stabilizing appendage (e.g., fin) Collapsible Extending beyond rear of missile WITH EXTENDABLE ARMS With range increasing means Practice or cleaning | |
