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Class 74/5.6D - Electrical


Subclass of Class 74 - Machine element or mechanism
No. of patents: 62
Last issue date: 05/14/2002


1    
NumberTitleIssue Date
6386886Gimbal system
A system includes a slip ring plate and a pair of brush assemblies mounted on each side of a housing. The disk-shaped slip ring plate is mounted to a first gimbal member and has a plurality of concentric, truncated circular shaped electrical conductive se...
05/14/2002
5752412Process for scanning of gyroscopic instrument and a gyroscopic instrument using this process
The invention refers to a process for scanning a gyroscopic instrument. The invention is characterised by the collection of gyroscopic data being effected by true angle scanning. In order to apply the process of the invention, a gyroscopic instrument incl...
05/19/1998
5719335Electrostatic rate gyroscope
An acceleration detection gyro apparatus is of the electrostatic supporting type. This gyro apparatus can be made inexpensive, long in life, excellent in durability and can be applied to a wide variety of fields. A gyro rotor (20) is supported relative to...
02/17/1998
5561246Biaxial rate gyro comprising elastic joint parts
A two-axis rate gyro has two articulation elements arranged sequentially. The first articulation element is connected with a drive shaft of the rate gyro and the second articulation element is connected with a gyro rotor. The two articulation elements are...
10/01/1996
5559417Electronically commutated two-axis gyro control system
A two degree of freedom gyroscope having a drive motor (20), with a permanent magnet rotor (22), which includes an optical sensor (11) for providing an X-axis signal and a Y-axis signal which are indicative of the displacement of the actual rotor (22) spi...
09/24/1996
5353656Electrostatically controlled micromechanical gyroscope
An integrated electrostatically-controlled micromechanical gyroscope with a rotor encompassed within a rotor cavity and electrostatically spun within the cavity. The gyroscope includes a plurality of axial electrostatic rotor actuators above and below the...
10/11/1994
5256942Stabilization system for a freely rotatable platform
A stabilization system for space platforms, satellites and the like. One arrangement for demonstration purposes incorporates a frame and a pair of motor/flywheel units which are pivotably mounted to the frame. These units are retained in positions of alig...
10/26/1993
5156056Gyroscope having a specifically restrained piezoelectric crystal
A gyroscope which comprises a gyroscopic element mounted to a base which is mounted coaxially to a spin motor. Preferably at least one hinge is between the gyroscopic element and the base. There is at least one piezoelectric crystal, preferably a bender e...
10/20/1992
5105668Hydrostatic bearing gyroscope with integral level sensor
A gyro having a liquid hydrostatic bearing includes an integral liquid hydrostatic suspended pendulum arrangement which senses the direction of the gravity vector of the gyro housing. The configuration described provides close coupling of the hydrostatica...
04/21/1992
5001940Gyro for detecting signals along two axes
A gyro comprises a support member and a rod member supported by the support member. A vibrator attached to the rod member has two pairs of vibrating members projecting at right angles to the rod member. A driving mechanism is attached to the rod member an...
03/26/1991
4916957Flexible 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
4908558Spherical motion simulator
A flight motion simulator includes a unit under test supported on a stationary frame for angular and translational movement along pitch, roll, and yaw axes. A rotor element is secured to the unit under test and has a spherical configuration. Magnetic bear...
03/13/1990
4838099Gyrocompass
A gyroscope employing a rotor in rolling contact with a ball positioned at the end of a drive shaft, the arrangement establishing a loose fitting ball and socket suspension for the rotor. Contact points of the rotor on the ball establishes the necessary p...
06/13/1989
4811613Two-axis angular rate gyroscope
A two-axis angular rate gyroscopic apparatus is provided having a rotatable dish. The dish has a central hub portion and a plurality of flexible members, each of which extends from the hub portion. The entire disk is electrically conductive and connected ...
03/14/1989
4793195Vibrating cylinder gyroscope and method
The gyroscope includes a symmetric and concentric, freely vibrating cylinder. Electromagnetic forcers are arranged to apply forces on the cylinder to excite the cylinder's lowest order radially oscillating mode. The forcers also steer the resulting nodal ...
12/27/1988
4779469Power and signal transfer unit
A power and signal transfer unit has a stator assembly and a rotor assembly for a control moment gyroscope and for overcoming the problem of electrical noise in a slip ring by using a slip ring having a flexible cable. A stator assembly has a frame member...
10/25/1988
4722233Gyroscopic device for generating an angle corresponding to magnetic flux changes
The disclosure relates to a gyroscope in which an electric signal corresponding to an angle (-଱, +଱) between the rotor of the gyroscope and the frame of the rotor is generated. The rotor is provided with one or more permanent magnets. An eleme...
02/02/1988
4690007Gyroscope
A miniature gyroscope having a gas-turbine reaction rotor of dumb-bell form which comprises a pair of masses (62,63) one spaced from the other at opposite ends of a shaft, and an inner gimbal (61) which extends into the space between the two masses and th...
09/01/1987
4686404Controlled radial magnetic bearing device
A controlled radial magnetic bearing device which has an X-axis electromagnet and a Y-axis electromagnet provided on the X-axis and Y-axis perpendicular to each other in a plane normal to the axis of a rotary shaft, X-axis and Y-axis position sensors for ...
08/11/1987
4633722Gyroscope apparatus
A single-axis servoed rate gyroscope has a sealed gimbal assembly that is mounted by bearings for angular displacement about a rotational axis, at right angles to the gyroscope spin axis. The gyroscope torquer comprises a circular, cylindrical coil mounte...
01/06/1987
4612819Torquer for gyros
In a dry tuned gyro, two pairs of coils 44 having ferromagnetic cores 46 are provided as torquers, which act on a ferromagnetic gyro rotor 36. The coils 44 are each angularly offset by 90°. Opposite coils 44 are energized in opposite directions by a dire...
09/23/1986
4610172Induction feedback stabilized suspension gyroscope
A suspension gyroscope has a stator and a rotor rotatably mounted with respect to the stator. The rotor has at least one generally hemispherical portion which is, at least in part, electrically conductive. The rotor may also have disc-like portions which ...
09/09/1986
4608874Gyroscope apparatus rotating casing for a rotor
A gyroscope constructed in accordance with the present invention includes a flywheel (220) which can oscillate with at least two degrees of freedom about a central position in which the flywheel axis is aligned with the axis of a drive shaft (200), the fl...
09/02/1986
4587860Gyroscope apparatus, in particular a flexibly suspended and electrostatically supported gyro accelerometer
A flexibly suspended gyroscope apparatus comprises a fixed body (100), a rotary drive shaft (200) supported in said body, and a flywheel (220) mounted on said drive shaft by a rotary joint (222). The joint serves to retain the flywheel radially and to tra...
05/13/1986
4553439Apparatus for demodulating gyroscope position information
A synchronous demodulator is configured so as to extract gyroscope position nformation in a polar coordinate format and then resolve it into position information in a more useful cartesian coordinate format. The technique involves integration of a gyroscop...
11/19/1985
4521854Closed loop electrostatic levitation system
An electrostatic levitation system is described, which can closely control the position of objects of appreciable size. A plurality of electrodes surround the desired position of an electrostatically charged object, the position of the object is monitored...
06/04/1985
4491029Position gyroscope
The present positional gyroscope is used for stabilizing and steering a fng body, especially a secondary flying body ejected from a primary or carrier flying body which is rotating or rolling about its longitudinal or roll axis. Such gyroscopes are suppo...
01/01/1985
4464721Digitized pickoff system
A digitized pickoff system is provided for sensing displacement of complementary elements of a dual element pickoff assembly in an inertial sensor for use in an inertial navigation system comprising a relaxation oscillator adapted to sequentially select e...
08/07/1984
4451990Gyrocompass
In a gyrocompass in which a gyro is housed in a gyro case with a spin axis arranged substantially horizontal, a container is provided for surrounding the gyro case and for containing a liquid. A suspension wire supports the gyro case within the container ...
06/05/1984
4445375Tuned coriolis angular rate measuring device
A tuned coriolis, angular rate measuring device includes a substantially hollow, generally annular rotor driven by a high-speed, synchronous spin motor. The rotor is made unsymmetrical by mounting within the rotor near its periphey at least a pair of high...
05/01/1984
4426889Molded inertial sensor
Structural elements of an inertial sensor are fabricated from molded plastic materials. The structural elements are characterized by relatively, small cross-section areas, and further incorporate keys and keyways, as well as guide and alignment slots, mol...
01/24/1984
4395922Gimballed stabilization system with means for suppression of dither characteristics
A gimballed platform stabilization system includes at least one outer member, an inner member, and an intermediate inertia bearing member. The intermediate member has limited coaxial angular freedom about an isolation axis with respect to the inner and ou...
08/02/1983
4386535Resonator restrained gyro
A gyro includes a rotatable hub with a flexing member centrally supporting a rotor. The rotor is further supported by a pair of piezoelectric force transducers angularly separated by 90 degrees. The rotor turns with the hub. Oscillators drive the transduc...
06/07/1983
4361054Hot-wire anemometer gyro pickoff
An arrangement of hot-wire anemometers is set partially into the rotor boary layer so that they form two resistors of a wheatstone bridge circuit for each axis. The hot wire resistors change in resistance according to the angular offset from null of the ...
11/30/1982
4342226Turn indicator for ships or aircraft
A turning indicator for indicating the turning direction and the turning speed of course changes of a ship or an aircraft, in which an electromotor is movably mounted between two supports of a carrier. An axle of the carrier is fixedly connected with the ...
08/03/1982
4335927Multi-circuit rotary electrical conductor assembly
A full or partial rotational, substantially zero friction electrical conductor assembly conducts the electrical currents of a large number of electrical circuits between a pair of relatively rotatable members in a minimum axial length. A plurality of conc...
06/22/1982
4329884Signal processor for a resonator restrained gyro
A gyro includes piezoelectric force transducers which are oscillator driven. As the gyro undergoes angular displacement, the oscillators "follow" the instant natural frequency of the transducers and FM signals are generated at the oscillator outputs which...
05/18/1982
4320669Two degree of freedom gyro having an axial gap permanent magnet motor
A two degree of freedom gyro having an axial gap, permanent magnet motor. The gyro motor includes a stator having two sets of series connected coils wound in quadrature. The motor further includes a rotor which is adapted for continuous rotation about a s...
03/23/1982
4281555Molded inertial sensor
Structural elements of an inertial sensor are fabricated from molded plastic materials. The structural elements are characterized by relatively, small cross-section areas, and further incorporate keys and keyways, as well as guide and alignment slots, mol...
08/04/1981
4267737Dual suspension gyroscopic device having powered gimbal support
A dual suspension gyroscopic device includes a gyro having at least a single degree of freedom and defining an output axis, i.e., the sensitive axis of the gyroscopic device. The gyro is supported by a gimbal which in turn is supported in a case for unlim...
05/19/1981
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