Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 4529151 | Method and an apparatus for steering an aerodynamic body having a homing device An aerodynamic body (M) provided with means for steering in response to a body control variable signal has a homing device (1) supplying a measurement signal (&3xb5;m) of the error angle of the body. For intercepting a target (T) a computing un... | 07/16/1985 |
| 4522356 | Multiple target seeking clustered munition and system A clustered munition in a system for low altitude aerial delivery, which releases multiple rocket powered missiles, each having the capability to cruise at a constant altitude and search for a target. Once a target is identified, the missile homes on and ... | 06/11/1985 |
| 4508293 | Seeker-body decoupling system An improved airframe body decoupling system for a body gimballed sensor on an interceptor aircraft or guided missile. Body rate gyro information is employed for internal decoupling so as to eliminate decoupling match sensitivity to receiver errors. The tr... | 04/02/1985 |
| 4505442 | Transient surface contact vehicle A transient surface contact vehicle for transporting a load from a surface starting point to a surface end point has a structure for carrying the load from the starting point to the end point. A vehicle support extends from the structure. A buoyancy contr... | 03/19/1985 |
| 4505441 | Terrain-following transient surface contact vehicle A terrain-following transient surface contact vehicle for transporting a load from a surface starting point to a surface end point has a structure for carrying the load from the starting point to the end point. A vehicle support extends from the structure... | 03/19/1985 |
| 4502650 | Augmented proportional navigation in third order predictive scheme A method for augmenting a noise-adaptive predictive proportional navigation terminal guidance scheme. In a third order configuration with noise adaptive varying gain parameters calculated as a function of time-to-go, this system implements an optimal cont... | 03/05/1985 |
| 4497065 | Target recognition system enhanced by active signature measurements A passive electro-optical target recognition system which utilizes additional signature measurements of an active nature to enhance the discrimination of desired targets from detected candidate targets in the field of view thereof is disclosed. Candidate ... | 01/29/1985 |
| 4494202 | Fourth order predictive, augmented proportional navigation system terminal guidance design with missile/target decoupling A method for augmenting a noise-adaptive predictive proportional navigation terminal guidance scheme. In a fourth order configuration with noise adaptive varying gain parameters calculated as a function of time-to-go, this system implements an optimal con... | 01/15/1985 |
| 4492352 | Noise-adaptive, predictive proportional navigation (NAPPN) guidance scheme A method for augmenting the value of range uplink information in a predictive proportional navigation terminal guidance scheme. A second order configuration, with noise adaptive varying gain parameters calculated as a function of time-to-go, is particular... | 01/08/1985 |
| 4465249 | Lateral acceleration control method for missile and corresponding weapon systems A lateral acceleration control method for a missile permits short response times to commands even of great amplitude. It comprises the association of an aerodynamic control system having large lateral acceleration capability, called PAF, with a force cont... | 08/14/1984 |
| 4457475 | Method for destroying targets and a projectile for carrying out the method The invention relates to destruction of hostile targets (M) by firing controllable explosive projectiles (P, PO) towards the target. The projectiles are provided with target tracking devices for automatic guidance in response to detection of electromagnet... | 07/03/1984 |
| 4456202 | Burst height compensation A method of increasing the predictable effectiveness of a ballistic reentry ody having a predicted nominal reentry trajectory. Beginning at reentry or another predetermined location, the distance travelled by said reentry body is calculated based on measur... | 06/26/1984 |
| 4420129 | Guided missile and fuze system therefor In a guided missile, in which an altitude-sensing control causes the miss to descend to a predetermined constant low altitude at a specified time before reaching a target ship, a timing mechanism waits for elapse of a predetermined interval from the desc... | 12/13/1983 |
| 4415130 | Missile system with acceleration induced operational energy A missile system is disclosed which collects and stores energy during the early stages of flight of a missile at a time when the acceleration forces on the missile are the greatest and thereafter, regulates the stored energy to at least one mechanism on b... | 11/15/1983 |
| 4396878 | Body referenced gimballed sensor system A system for proportionally navigating an airframe to a target wherein the airframe is maneuvered by an onboard flight control system including body rate gyros for detecting the movement of the airframe relative to a fixed reference. A target sensor is mo... | 08/02/1983 |
| 4383662 | Ideal trajectory shaping for anti-armor missiles via gimbal angle controller autopilot Apparatus and method of anti-armor missile trajectory shaping for optimum rhead penetration of armor by a guided missile. The guidance system utilizes a terminal homing guidance unit in conjunction with a programmed control signal through the missile's au... | 05/17/1983 |
| 4277038 | Trajectory shaping of anti-armor missiles via tri-mode guidance In a missile system, a simple way to guide a missile in a predetermined tectory from launch to the impacting with a target for optimum warhead penetration of armor by a guided missile. Initially, the missile is guided in yaw by proportional navigation. S... | 07/07/1981 |
| 4264907 | Rolling dual mode missile In a rolling missile a seeker system which is responsive to two forms of energy emanating from a target. The system has the capability to switch between guidance modes during its path towards its intended target.... | 04/28/1981 |
| 4241889 | Method for increasing the hit probability of jammed missiles and device for carrying out the method A method and device is disclosed for increasing the hit probability of guided missiles exposed to jamming by double or multiple targets. In particular, the missiles are guided by the proportional navigation principle and have a follow-up target-seeking he... | 12/30/1980 |
| 4208024 | Control apparatus 13. In a control system by means of which a dirigible craft may be controlled, means on said craft for detecting electric fields through which said craft may be moving and for producing three signals indicative of orthogonal components of the electric fie... | 06/17/1980 |
| 4202516 | Electronic tripod technique An electronic tripod technique for postlaunch alignment of the roll and pitch gyros of a missile inertial guidance system. Prior to launch, missile gyros are spun up and caged to the missile airframe axes. At launch, gyros are uncaged and slant range to g... | 05/13/1980 |
| 4198015 | Ideal trajectory shaping for anti-armor missiles via time optimal controller autopilot A missile system in which a missile is guided in a predetermined trajectory rom launch or shortly thereafter in yaw by proportional navigation and in pitch first by a pitch programmer until said missile reaches a predetermined angle between a line of sight... | 04/15/1980 |
| 4176814 | Terminally corrected projectile An apparatus for correcting the terminal portion of the ballistic trajectory of a projectile. The projectile is initially fired at a target in a manner to cause the projectile to rotate in flight. At least one detector is mounted on a front surface of the... | 12/04/1979 |
| 4168813 | Guidance system for missiles A missile guidance system is provided in which a sensor is pivotally mounted on the missile in a gimbal system having two degrees of freedom. The sensor is controlled during flight in such a manner that the axis of the sensor is aligned in a direction det... | 09/25/1979 |
| 4143836 | Method and device for spread bombing The spread bombing is effected by a plurality of guided bombs transported by a carrier aircraft near to a target area. The guided bombs are provided with respective programmable storage devices and a freely selectable target coverage pattern is provided b... | 03/13/1979 |
| 4111382 | Apparatus for compensating a ballistic missile for atmospheric perturbations A ballistic missile guidance apparatus for compensating the trajectory of a allistic missile just prior to thrust termination by comparing the nominal trajectory with the actual flight parameters encountered during the powered stage of the flight and intro... | 09/05/1978 |
| 4108400 | Dual mode guidance system A dual mode missile guidance system employing a passive anti-radiation ser for midcourse guidance and an alternate sensor for terminal guidance. A broadband, body mounted conformal antenna comprises the midcourse sensor, and the alternate sensor is mount... | 08/22/1978 |
| 4058275 | Low frequency passive guidance method A system for detecting the low frequency electromagnetic field radiated by lectrical and electronic equipment comprising field coils oriented perpendicularly to a missile axis.... | 11/15/1977 |
| 4044237 | Missile maneuver concept A lifting body missile is controlled by pitch and roll commands wherein the aw autopilot is caused to change in accordance with the roll and estimated angle of attack input information. A command logic is provided to determine the polarity of the command s... | 08/23/1977 |
| 4034936 | Device for damping the tipping and yawing oscillations of the guidance system of a flying vehicle The guidance system for a flying vehicle having at least one guidance channel for converting an error signal to a command signal for a control surface servo of the vehicle includes means for damping oscillations at the natural frequency of the vehicle. A ... | 07/12/1977 |
| 4033525 | Feedback PDM encoder and method for actuating a pneumatic actuator with a digital autopilot A feedback PDM encoder and method is presented which permits utilization of neumatic pulse duration modulation (PDM) actuators with potentiometer position pickoffs in a digital autopilot loop. The actuator is directly driven by a signal derived in the digi... | 07/05/1977 |
| 4027834 | Missile nozzle configuration 1. In a guiding and propulsion system for a missile, the combination which comprises: Communication means mounted in a central portion of the missile toward the aft end thereof and effective to receive and emit radiant energy along a rearward line of view... | 06/07/1977 |
| 4013875 | Vehicle operation control system The combination of a vehicle such as a tractor having at least one actuatable operation-performing element; a device for monitoring the operational status of the element; and a stored program digital computer including a storage unit and a control unit. T... | 03/22/1977 |
| 4004487 | Missile fire-control system and method A surface-to-surface missile fire control system employing a pilot projectile fired into a predetermined indirect ballistic trajectory monitored by a fire-control station to determine its actual trajectory and actual coordinates of impact and wherein the ... | 01/25/1977 |
| 3990657 | Method and apparatus for reducing ballistic missile range errors due to viscosity uncertainties (U) Errors in the trajectories of balistic missiles result from a number of ces such as the velocity uncertainty of the missile during its powered flight. Prediction of these errors provides the missile circular error probability (CEP) usually in the form of... | 11/09/1976 |
| 3979085 | Guided missile using fluidic sensing and steering A missile using fluidic sensors for determination of net aerodynamic force nd moment on the missile. The force and moment thus determined are processed and summed by fluidic amplifiers and integrators to provide control signals for fluidic thrusters or oth... | 09/07/1976 |
| 3964694 | Aerial acoustic target seeker An acoustic destructive aerial target seeker having recognition-guidance cuitry which is adapted to detect and recognize the characteristic sound emitted from an armored vehicle and to launch and direct the system toward destructive impact with the targe... | 06/22/1976 |
| 3963195 | Roll reference system for vehicles utilizing optical beam control Control information for guiding of vehicles such as a missile, projectile or manned vehicle, is carried on an optical beam directed at such vehicle from a ground station. Information for roll stabilization of such vehicle is carried in such beam in the fo... | 06/15/1976 |
| 3951358 | Guidance and control system for target-seeking devices 5. In a target-seeking device having a plurality of steering members for steering it along a predetermined type of navigation course with respect to a target that is illuminated by radio-frequency signals having a substantially constant repetition rate, a... | 04/20/1976 |
| 3949954 | Loran guidance for remote bomb A projectile carrying a Loran processor is directed to a target along a line, referred to as a lorhumb line, which is the locus of all points i for which TDA- TDAi /TDB- TDBi is constant. Any deviation results in a cross-track error ... | 04/13/1976 |
