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| Number | Title | Issue Date |
| 7159479 | Active damper for stabilized mirrors An active damping method for a stabilized mirror, and a corresponding active damper apparatus, comprising providing a tachometer measuring speed of a motor driving the mirror, employing compensation electronics receiving input from said tachometer and the motor, and... | 01/09/2007 |
| 7084821 | Fixing structure using a couple of screws and antenna unit having the same A fixing hole and a locating hole of an automobile's roof are aligned in a predetermined direction while a fixing part and a locator pin of an antenna unit are aligned in a slightly different direction on the condition the antenna unit is oriented in the predetermin... | 08/01/2006 |
| 7051617 | Methods and apparatus for tuned axial damping in rotating machinery with floating bearing cartridge An apparatus and method for selecting an appropriate viscous fluid for use in control moment gyroscopes, reaction wheels, momentum wheels and the like. Components such as the housing, the rotor, and the viscous fluid are modeled using a three-parameter isolator syst... | 05/30/2006 |
| 6982538 | Methods and apparatus for generating a sinusoidal motor drive signal for a MEMS gyroscope An apparatus is described which reduces a time delay and a resultant phase shift in a gyroscope motor drive signal. The motor drive signal originates from a numerically controlled oscillator whose output is sampled at a predetermined rate. The apparatus includes a f... | 01/03/2006 |
| 6902482 | Interactive electronic game having gyroscopic output effect An electro-mechanical device for providing an input to a computer program and said computer program providing a tactile output through said electro-mechanical device to a user. More specifically, the present invention provides an electro-mechanical virtual sword gam... | 06/07/2005 |
| 6789437 | Apparatus for precision slewing of flatform-mounted devices An apparatus and a method for controlling the path of oscillatory travel of a device within a two-axis system. A device, such as a camera, is held in a two axis gimbal system having motors for driving the azimuth and pitch axes. A two degree-of-freedom gyroscope is ... | 09/14/2004 |
| 6742381 | Apparatus and method for evaluating damping performance of vibration-damping devices A damping performance evaluation apparatus for damping devices including: a support member detachably supporting a damping device in a state enabling the device to exhibit a damping effect thereof; a hammer member for applying oscillation force to the device caused ... | 06/01/2004 |
| 6619221 | Oscillation suppression device An oscillation suppression device comprises a base body to be secured to a ship body, a gimbals secured to the base body, a damper, a flywheel provided in the gimbals, and a motor for rotating the flywheel, etc. The gimbals is supported by bearings built ... | 09/16/2003 |
| 6598492 | Pneumatic caging system for gyro-stabilized sensor platforms A passive caging system for use in gyro-stabilized sensor platforms and the like, employing a pneumatic dashpot in place of automatic caging gyro brakes, pin-locking devices, springs, fluid damped pistons, or air bladders. A pneumatic dashpot in combinati... | 07/29/2003 |
| 6301982 | Variable mechanism for mounting angle housed gyro-sensor and method of mounting variable mechanism for mounting angle A housed gyro-sensor 31 is housed in a rotation plate 33. The gyro-sensor 31 is mounted so that a rotation operation is enabled in a pitch axis direction about an axis in a mounting hole 24 formed on a housing of an inner face of the car navigation system... | 10/16/2001 |
| 6191521 | Vibration damper assembly for a vibrating structure gyroscope resonator A vibration damper assembly for a ring resonator of a vibrating structure gyroscope has a female portion attachable to a body of the gyroscope so as to have limited resiliency with respect to the body in a direction substantially perpendicular to the body... | 02/20/2001 |
| 5820078 | Control motion gyro with vibration isolation A control moment gyro having a housing enclosing a spinning momentum wheel. A rocking plate circumscribes the housing and is compliantly connected thereto by a set of isolator struts and non-contacting actuators which isolate the rocking plate from the in... | 10/13/1998 |
| 5818353 | Self leveling sensor/device package Self leveling apparatus that includes a frame, a device that is to be leveled, and a leveling mechanism such as a double ring gimbal having an inner gimbal ring and an outer gimbal ring. The outer gimbal ring is secured to the frame and the inner gimbal r... | 10/06/1998 |
| 5315888 | Gyro nutation damper A nutational motion damper includes a damping body positioned and constrained by springs to slide on a guide plate having a surface oriented substantially perpendicular to the axis of rotation of a gyroscopic body by opposed spring members. The guide plat... | 05/31/1994 |
| 5012904 | Centrifugal brake and gyroscopes including same A centrifugal brake for limiting the rotational speed of a rotatable body with respect to a reference body, which brake includes a brake element movable by centrifugal force into engagement with an abutment member fixed to the reference body when the rota... | 05/07/1991 |
| 5000053 | Apparatus for increasing suspension stiffness in a gyro Suspension stiffness about the input axis of a gyro is increased by selectively disabling suspension legs when the gyro float exceeds a predetermined deviation away from the equilibrium position. Float position may be measured directly or inferred from mo... | 03/19/1991 |
| 4991459 | Linear motion control arrangement A control arrangement for translating substantially linear motion includes a control device, a controlled device, and a mechanical link interconnected between said control device and said controlled device. The mechanical link comprises a spring strip hav... | 02/12/1991 |
| 4916957 | Flexible disc rotor rate gyro A gyroscopic rate sensor has a motor driven shaft on which is mounted a flexible disc rotor enclosed in a gas-filled housing with a rotating rigid plate, also mounted on the shaft, to provide viscous gaseous restraint. A rotating capacitive plate assembly... | 04/17/1990 |
| 4760299 | Distortion free synchro A resilient strain relief elastomer is placed between the stator of a synchro and its housing so that radial distortions of the housing are absorbed by the high shear compliance of the elastomer. Consequently, the stator remains undistorted, and the synch... | 07/26/1988 |
| 4658659 | Gyroscope A gyroscope with a rotor which rotates about a nonrotating axis is simple its structure and has but a few movable parts because the rotor axis (2) is divided into two sections by an articulation piece (8), whereby one section (2a) is connected with the h... | 04/21/1987 |
| 4648284 | Apparatus and method for reducing gyro activation time The apparatus and method for reducing gyro activation time is to be used with a gyroscope including a float floated within an outer case. An electromagnetic suspension is provided for maintaining the float at an equilibrium position within the outer case.... | 03/10/1987 |
| 4597475 | Universally movable suspension member The invention relates to a universally movable suspension member for a direction indicating display system, especially for a gyro system (2), in which a bellows unit (1) is provided between a revolving disk (3) and the gyro system (2). The suspension memb... | 07/01/1986 |
| 4596158 | Tuned gyroscope with dynamic absorber A tuned gyroscope incorporates a dynamic absorber for lessening the transmissibility of resonant vibrations. A damping mass is symmetrical about a rotating element of the gyroscope. A symmetrical arrangement of elastomeric material is utilized to mount th... | 06/24/1986 |
| 4563909 | System for electronically tuning and suppressing 2N rectification torques in a dynamically tuned free rotor gyroscope A system for electronically tuning and suppressing 2N rectification torques in a dynamically tuned free rotor gyroscope with a universal hinge, or a plurality of universal hinges. The system includes means to adjust the frequency of the drive shaft of the... | 01/14/1986 |
| 4558604 | Directional gyro The invention relates to a directional gyro having two mutually perpendicularly arranged gimbals. The first or outer gimbal is fastened to a frame by means of a trunnion having a perpendicular axis. This axis is provided with an angle pickup to determine ... | 12/17/1985 |
| 4503718 | Azimuth determining gyroscope In an azimuth determining gyroscope, a mechanically balanced gimbal is suspended from a fixed case by a wire which passes through the generally tubular upper portion of the suspended gimbal. A spin motor and a wheel for rotating about a vertical axis are ... | 03/12/1985 |
| 4458554 | Apparatus for and method of compensating dynamic unbalance Compensation is provided for dynamic unbalance imparted to a fixed body by a rotating body that is connected to the fixed body by a shaft about which the rotating body rotates. Force components exerted on the fixed body by the rotating body in a plane at ... | 07/10/1984 |
| 4448086 | Temperature controlled gyro A method of, and apparatus for, eliminating the error-causing heat convections of a liquid which is disposed between a warm cylindrical float that houses a navigational gyro and a cool cylindrical gyro case that houses the float. The method includes the p... | 05/15/1984 |
| 4375726 | Gyro compass In this gyro compass the direction-indicating gyro system is suspended pivotably in all directions from a pendulum, which is mounted to rotate about a vertical axis in a frame integral with a ship, and which has on its upper end an element that extends in... | 03/08/1983 |
| 4355540 | Centrifugal brake for a gyroscope with Cardan suspension A centrifugal brake for a gyroscope with Cardan suspension in a fixed housing on a mobile support includes two weights, identical, of C shape, mounted in opposition on two, diametrically opposed cylindrical articulation pins or axles. The two weights form... | 10/26/1982 |
| 4352481 | Apparatus and method for electronic damping of resonances Gimbal ring 32 has torquer positioner 34 and position detector 36 connected by servo loop 38, 40. Vibration sensor 52 on ring 32 provides ring vibration signals to amplifier shifter 54, 58 and the resultant signals are added to the servo loop at amplifier... | 10/05/1982 |
| 4270393 | Isolation system A vibration-isolating apparatus having orthogonal X, Y, and Z axes is provided for mounting a payload to a base. The payload contains a torque producing device. Torque generated about the X-axis in the payload is communicated to the base through a stiff l... | 06/02/1981 |
| 4266431 | Gyroscopic apparatus Gyroscopic apparatus comprises a gyroscopic device having two mutually perpendicular sensitive axes. The device is suspended in a two-axis gimbal system by means of cross-spring pivots of zero stiffeners. The gimbal system is further supported by a subsid... | 05/12/1981 |
| 4255979 | Pulse width modulated binary rebalance rate capture loop control for two-degree-of-freedom dry tuned gyro A dry tuned two axis gyro having a pulse-rebalanced rate capture loop control. This configuration eliminates the need for an analogue-to-digital converter since the gyro is torquered at a pulse rate using a constant current source. Another feature of the ... | 03/17/1981 |
| 4246801 | Semi-active laser seeker gyroscope A gyro in which an elastomeric material is used as a spherical bearing suce in an air bearing type gyro to sustain 12,500 g set back acceleration level during gun launch and have the capability of surviving the launch phase in a non-functioning mode and ... | 01/27/1981 |
| 4242917 | Isolation flexure for gyroscopes An illustrative embodiment of the invention provides an isolation flexure assembly for the control moment gyroscope of a spacecraft attitude control system for attenuation of vibratory disturbances therein, due to rotor static and dynamic unbalance and sp... | 01/06/1981 |
| 4240302 | Gyroscopic instrument A gyroscopic instrument which may be a compass or a turn-indicator or an artificial horizon includes a gyroscope rotor mounted in a frame for rotation and for universal pivotal motion and provided with a co-axial drum-shaped sleeve of a non-magnetic and e... | 12/23/1980 |
| 4236414 | High-g gimbal platform A platform carried by a rocket projectile for supporting an antenna or ot type of terminal homing sensors which are required to survive a high-g launch phase. The platform uses compliant suspension with modified hemispherical support gimbals for bearing ... | 12/02/1980 |
| 4222278 | Gyro apparatus using viscous damping device A viscous damping device positioned between a gimbal shaft and a bearing sleeve supporting the gimbal shaft is provided for damping a gyro apparatus in a rotational direction. The viscous damping device comprises first and second rings fixed to an outer p... | 09/16/1980 |
| 4198863 | Electromagnetic torsional stiffness element An electromagnetic torsion stiffness arrangement with integrated auxiliary elements in which a magnetic field exerts restoring forces on a current-carrying conductor when moved from its rest position. The magnitude of the restoring forces are dependent on... | 04/22/1980 |
