Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7032469 | Three axes line-of-sight transducer A system and method for measuring orientation of an object. In the illustrative embodiment, the object is a ball (42) in a ball and socket type pointing and stabilization system. The novel system (40) includes an encoded pattern (46) applied to ... | 04/25/2006 |
| 5752412 | Process 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 |
| 5594169 | Optically sensed wire gyroscope apparatus and system, and methods for manufacture and cursor control Single and dual wire gyroscopes determine the orientation and attitude of a device using optical sensing of radiation interrupted by current-carrying, vibrating tensioned wires within a magnetic fields. The tensioned wires vibrate between end nodes within... | 01/14/1997 |
| 5331401 | Method and apparatus for controlling dither in a multiple gyro system A method and apparatus for controlling dither in a multiple gyro system. Each gyro is driven at a distinct nominal frequency. The resulting gyro motions are measured, then demodulated to determine their cross-axis frequency content. Virtual drive signals ... | 07/19/1994 |
| 5313148 | Electronically 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... | 05/17/1994 |
| 5210408 | Rotatable electro-optic measurement tapping device The electro-optic measurement tapping device for a motion sensor movably arranged in a receptacle which can be rotated about a shaft, the deflection of the motion sensor from an initial position being detected and measured. The motiond detector has, on a ... | 05/11/1993 |
| 5070289 | Miniature tactical angular rate sensor A miniature two degree of freedom fluid bearing angular rate sensor used primarily for tactical applications includes a spherical hydrodynamic fluid bearing rotor, a permanent magnet motor/torquer, and an optical pick-off, all of which are arranged to pro... | 12/03/1991 |
| 4930365 | Two axis rate gyroscope A gymballess, two axis rate gyroscope in which an inertia rotor is keyed on the electric motor shaft. The motor shaft comprises a flexible part (flexure shaft) adapted to flex upon precession of the inertia rotor in consequence of an angular velocity inpu... | 06/05/1990 |
| 4914291 | Gimbal angle detector An apparatus for detecting deflection of the spin axis of a gimbal supported spinning mass relative to the gimbal axis comprises four equally spaced linear arrays of detector elements mounted around the gimbal axis and extending parallel to that axis. Fou... | 04/03/1990 |
| 4899955 | Angle encoder An angle encoder for determining the pitch (or yaw) angle of a gyroscopic mass with respect to the pitch (or yaw) axis of a missile in flight is shown to be the combination of: (a) an optical encoder pattern disposed on the periphery of the gyroscopic mas... | 02/13/1990 |
| 4862050 | Optical commutation and tilt sensing for a permanent magnet gyro A permanent magnet two degree of freedom gyroscope (10) utilizing a single rotor (12) having a trapezoidal shaped pattern formed thereon. The trapezoidal pattern consists of a reflective segment (11) and a non reflective segment (13). Two optical sensors ... | 08/29/1989 |
| 4818922 | Optical commutation for permanent magnet motors The present invention deals with an apparatus and method for starting and running permanent magnet motors based on angular position information using an optical commutation technique. The optical commutation technique provides rotor position information a... | 04/04/1989 |
| 4610172 | Induction 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 |
| 4488041 | Device for measuring the coordinates of a rotating sphere and process for manufacturing part of this device Device for determining the orientation of an axis, mobile about a point, of a solid in rotation about this axis, particularly a gyroscopic spinner, wherein said device comprises a portion of sphere centered on said point of said axis, of which the surface... | 12/11/1984 |
| 4437243 | Gyroscopic instrument An instrument including a gyroscopic rotor mounted to precess about a predetermined axis in response to pivotal movement of the rotor about a sensing axis, with the rate of precession being measured and being utilized to determine the amount of said pivot... | 03/20/1984 |
| 4386535 | Resonator 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 |
| 4371784 | Thin film plane-polarized intensity pickoff This invention disclosure describes a thin film plane-polarized electro magnetic energy pickoff system. The system provides a wide-angle linear range of b1;40 degrees with a cosine nonlinear range of b1;65 degrees. The design allows all active compone... | 02/01/1983 |
| 4361760 | Two-degree-of-freedom gyro with radiant energy pickoffs A two-degree-of-freedom gyro that uses a combination of fiber optics and iant energy sensors for low torque gimbal/housing position sensors. The mode of operation of the gyro is a sustained rotor displacement type instrument. The radiant energy type pick... | 11/30/1982 |
| 4339959 | Rate gyroscope having an optical sensor system A rate gyroscope having a spinning mass flexibly coupled to a rotor through a pair of orthogonally disposed, diametrically extending suspension arms. The spinning mass is adapted to pivot about the arms in response to a pair of orthogonal angular rates be... | 07/20/1982 |
| 4264852 | Follower device with differentiated speeds for gyrocompasses with mechanical suspension A detector responsive to an angular offset between a gyrosphere of a gyrocompass and a tilt ring, forming part of a gimbal mounting therefor, controls a follower motor coupled through a reduction gearing with a suspension shaft for that mounting, the shaf... | 04/28/1981 |
| 4170904 | Single-axis disturbance compensation system The invention relates generally to an improved system for sensing and compensating for external disturbance forces acting on a satellite while in orbit. A proof mass member is housed within an enclosure and shielded from external, non-gravitational forces... | 10/16/1979 |
| 4155521 | Cannon launched platform A gyro seeker which is capable of use in a cannon launched missile. The gyro seeker is enclosed in a housing mounted in the nose section of the missile. The platform of the gyro seeker supports an optical assembly, a detector, a gyro assembly, and a cryos... | 05/22/1979 |
| 4068538 | Stabilized platform system A platform stabilization system utilizing a small free running gyro, gimballed to the platform, as the reference element. Optical means are used to generate error signals in a torque free subsystem for sensing misalignment between the reference gyro and t... | 01/17/1978 |
| 4036453 | Wide angle torquing scheme A torquer system for a gyro device that has a spherically shaped rotor divided into upper and lower hemispheres. The rotor of the gyro is mounted on a gas bearing over a spherically shaped stator and supports an optical assembly positioned parallel to the... | 07/19/1977 |
| 4027540 | Inertial optical stabilizer Gyroscope instrumentation for providing stabilization of the direction of a ine-of-sight of more than 45° about one or more axes is described utilizing a two axes optical system. An inner gimbal supports a gyro rotor and a first mirror diagonal with a cle... | 06/07/1977 |