Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7185848 | Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments The invention relates to a mechanism to control the pitch and/or roll and/or center of gravity of a vehicle. The first embodiment is a track-based mass transfer system in which pathways are positioned along or radially terminate at a central horizontal plane of the ... | 03/06/2007 |
| 7181987 | Precessional device and method A precessional device having independent control of the output torque generated by the device and the oscillation race of the device is disclosed. The device comprises a rotor supported by an axle wherein the ends of the axle are supported by a circular race. The ci... | 02/27/2007 |
| 7152495 | System and method for adaptive cancellation of disturbances A disturbance-cancellation system and method is provided that facilitates the adaptive cancellation of periodic disturbances. The disturbance-cancellation system and method includes a pair of control moment gyroscopes (CMGs) arranged together as a scissored pair. Th... | 12/26/2006 |
| 7130744 | Method for determining and compensating the scale factor error caused by a wavelength change in a GPS-based inertial navigation system In a GPS-supported inertial attitude and heading reference system equipped with a Kalman correction filter and a multiple axis fiber optic gyroscope, the invention provides for only that scale factor error which is determined for the measurement axis (e.g. the verti... | 10/31/2006 |
| 6907800 | Shaftless gyrostabilizer for aerial platforms Gyrostabilizer methods and apparatus having simultaneously counter-revolving masses that do not require physical shafts or axles. The stabilizer can have dual counter-revolving concentric rings, or tracks filled with weights such as spherical balls, that are propell... | 06/21/2005 |
| 6876926 | Method and system for processing pulse signals within an inertial navigation system A method and system for processing pulse signals within an inertial device is provided. The inertial device may have inertial sensors, such as accelerometers and gyroscopes. The inertial sensors may output signals representative of a moving body's motion. The signal... | 04/05/2005 |
| 6729580 | Method and system for directing an object using gyroscopes A system for directing an object is disclosed. The system includes a first gyroscope with a first rotating rotor and a second gyroscope with a second rotating rotor. Each gyroscope has a motor that rotates a first gimbal coupled to the rotor and a brake that decreas... | 05/04/2004 |
| 6684722 | Aviatorial valve assembly Apparatus, methods, and systems are disclosed for removing stress on gyroscopes during acrobatic flight and for causing gyroscopes to fail in a controlled manner during testing and training. A valve for protecting a pneumatic-gyroscopic aircraft instrumen... | 02/03/2004 |
| 6679457 | Reaction wheel system with vernier control rotor A reaction wheel system is provided that includes at least two rotors. The first rotor is the primary rotor that provides the large output torques to the vehicle. The second rotor is a vernier control rotor. The primary rotor and vernier control rotor eac... | 01/20/2004 |
| 6654685 | Apparatus and method for navigation of an aircraft In accordance with this invention, an apparatus and method for aircraft navigation are provided that utilize a blended architecture consisting of a global positioning system (GPS) and micro-electromechanical sensors (MEMS) for the primary navigation syste... | 11/25/2003 |
| 6621245 | System for the stabilization of an object mounted on a moving platform A calculation system for calculating the control signals which are designed to perform a frequency-dependent weighting of the angular velocity signals and the angular position signals. The angular velocity indicators are preferably used for stabilization ... | 09/16/2003 |
| 6351092 | System for the stabilization of an object mounted on a moving platform A calculation system for calculating the control signals which are designed to perform a frequency-dependent weighting of the angular velocity signals and the angular position signals. The angular velocity indicators are preferably used for stabilization ... | 02/26/2002 |
| 6305647 | Method and apparatus for steering the attitude of a satellite A method is disclosed for controlling the attitude of a satellite by controlling the speed of the gimbals of CMGs in a cluster of CMGs, the CMG having respective wheels mounted on gimbals that are mounted on a satellite platform to rotate about different ... | 10/23/2001 |
| 6227482 | Gyroscope for remote-controlled helicopters A gyroscope suitable for a remote-controlled helicopter is provided that can improve the control characteristics to a disturbance factor such as wind as well as the response characteristics under yaw-axis control in a correct pitch operation. The angular ... | 05/08/2001 |
| 6131068 | Accuracy of an inertial measurement unit A missile guidance system employs a strap down inertial measurement unit with a separate accelerometer and star sensor that are moved for preflight accelerometer initialization. During flight, light is directed on the accelerometer and inertial measuremen... | 10/10/2000 |
| 5749540 | System for controlling and automatically stabilizing the rotational motion of a rotary wing aircraft In a helicopter having a device for stabilizing yaw motion through the use of a tail rotor with a plurality of rotor blades extending radially from a hollow rotor shaft which is mounted for rotation about a transverse rotor axis. The tail rotor is provide... | 05/12/1998 |
| 5660356 | System for providing power and roll motion stability in a vehicle A dual flywheel assembly for use in an airborne vehicle for storing mechanical energy therein prior to flight and for permitting the extraction of electrical energy therefrom during flight, which assembly includes two flywheels which are linked by a suita... | 08/26/1997 |
| 5527003 | Method for in-field updating of the gyro thermal calibration of an intertial navigation system An in-field method for correcting the thermal bias error calibration of the gyros of a strapdown inertial navigation system. The method is begun after initial alignment while the aircraft remains parked with the inertial navigation system switched to navi... | 06/18/1996 |
| 5505410 | Instrument calibration method including compensation of centripetal acceleration effect A method and apparatus are provided for addressing the effect of centripetal acceleration upon estimates of cross-track velocity, for determination of east gyro bias error, generated with a taxiing aircraft. After initial estimates of crab angle, ratio of... | 04/09/1996 |
| 5305968 | Device for automatically stabilizing the yaw motion of a helicopter In a helicopter having a tail rotor with a plurality of rotor blades extending radially from a hollow rotor shaft which is mounted for rotation about a transverse rotor axis, and having a push-pull rod extending through the hollow shaft and operably conne... | 04/26/1994 |
| 5095746 | Aircraft banking angle indicator An aircraft banking angle indicator which includes a banking angle sensing arrangement for generating an actual banking angle signal, a maximum banking angle input device for manually entering a selected maximum banking angle, a signal processing arrangem... | 03/17/1992 |
| 5035382 | Rapid assembly aircraft for ground surveillance A terrain surveillance, powered aircraft is disclosed to have an on-board video camera that is not gimballed relative to the aircraft, the aircraft typically comprising multiple components; the method of the invention including: assembling the components ... | 07/30/1991 |
| 4844383 | Apparatus for redundant axis stabilization and control of an aircraft Apparatus for stabilization and control of an aircraft includes a pair of strapdown devices that are rigidly fixed in space relative to one another. Each device includes two two-axis gyroscopes, permitting the generation of triple redundancy. The measurem... | 07/04/1989 |
| 4817889 | Foolproof simplified vacuum systems Vacuum systems for use aboard aircraft and other vehicles, wherein, by simplified design, the systems of this new invention are virtually foolproof. This new invention utilizes the age old venturi due to its simplicity and lack of moving parts, but due to... | 04/04/1989 |
| 4212443 | Strapped down attitude and heading reference system for aircraft employing skewed axis two-degree-of-freedom rate gyros A set of two two-degrees-of-freedom rate gyroscopes and three linear accelerometers are assembled in a single module adapted to be mounted within a single aircraft electronics control unit, the unit comprising a strapped-down attitude and heading referenc... | 07/15/1980 |
| 4188570 | Gimbal angle rate feedback by cage coil demodulation A circuit for applying rate feedback to the pitch and yaw canard commands a guided projectile or missile to stabilize the airframe. The circuit demodulates and differentiates the signal from the gyro cage coil to obtain a signal representative of the air... | 02/12/1980 |
| 4052654 | Gyro stabilized inertial reference system with gimbal lock prevention means A four-axis gyro stabilized inertial reference system. The system comprises a nested gimbal configuration, which includes a platform and three successively larger and concentrically disposed inner, middle and outer gimbals and an outer casing. The platfor... | 10/04/1977 |
| 4025230 | Advanced control system for a rotor and/or a compound or rotary wing vehicle The control system includes a sensing mechanism by which a true pure signal from flapping bending activity resulting from an external load force on a rotor blade in a rotor system is generated and fed back to a gyroscope which then precesses to return a c... | 05/24/1977 |
| 3985320 | Platform stabilizing systems Apparatus for stabilizing a platform characterized by a frame carrying a stabilizing gyroscope that includes a substantially horizontal rotor with its shaft fixed with respect to the frame so as to effect a precessing force 90° in the direction of rotati... | 10/12/1976 |
