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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7343829 | 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... | 03/18/2008 |
| 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 |
| 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 |
| 5839386 | Vehicle stabilizing by rotating mass A water craft or land vehicle is stabilized against rolling and pitching forces by a mass or masses rotating about a vertical axis. The mass or masses are distributed along the vertical axis so that the center of the overall mass lies on the roll and pitc... | 11/24/1998 |
| 5425281 | Fluid pendulum arrangement for implementing fast erection of vertical gyroscopes A fluid pendulum arrangement is used for implementing fast initial erection of vertical gyros by maintaining the gyro wheel spin axis near vertical during the gyro "power-off" mode of operation. Fluid is contained in a lower fluid chamber section which is... | 06/20/1995 |
| 5184521 | Gyroscopically stabilized apparatus A gyroscopically stabilized apparatus for aiming an instrument at a target object. An external yoke is attached to the ends of a hub assembly which supports the gyro and camera platforms for rotation about pan, tilt and roll axes. The yoke is associated w... | 02/09/1993 |
| 4669323 | Erector An erector for holding a spin axis of a gyro rotor in the vertical direction used in a gyroscopic horizon or gyro vertical which comprises a gyro casing incorporating therein a gyro rotor rotating at high speed, a spin axis of the gyro rotor being held su... | 06/02/1987 |
| 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 |
| 4377950 | Vertical gyro erectors The invention concerns a vertical gyroscope rotary mechanical erector. According to the invention, the erector is characterized mainly by the fact that it features only one unstable pendulum (6) while providing the same quality on the vertical as the erec... | 03/29/1983 |
| 4354394 | Device for righting and stabilizing a gyro vertical The invention relates to a device for righting and stabilizing a gyro vertical comprising: a disc arranged on the gyro housing and perpendicular to the gyro spin axis to be driven in the same sense as the gyro rotor, a cavity provided in the disc and a li... | 10/19/1982 |
| 4346614 | Process and device for installing a vertical gyroscope The present invention relates to a process for setting up a vertical gyroscopic device mounted on a moving craft, wherein the action of roll reset means is eliminated only with a delay time with respect to the rotation of the mass, this delay time being s... | 08/31/1982 |
| 4294128 | Device for erecting and stabilizing a gyro vertical The invention relates to a device for erecting and stabilizing of a gyro vertical, comprising a disc arranged on the gyro housing and perpendicular to the gyro axis, said disc being driven in the same sense as the gyro rotor but at a reduced rate as compa... | 10/13/1981 |
| 4275604 | Device for the leveling of the gyroscopic axis of a compass with a mechanical suspension and an antipendular-torque precession system A gyrocompass with a tilt ring pivotable about a substantially horizontal axis has a U-frame swingable about that axis which forms part of a pendular system and carries a coupling lever engageable with projections on the lower end of the U-frame to immobi... | 06/30/1981 |
