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Bouchard; John R.
Canton, MA
No. of patents:

Patent Number Title Of Patent Date Issued
5000053 Apparatus for increasing suspension stiffness in a gyro March 19, 1991
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 monitoring currents in the elec
4214482 Inertial instrument July 29, 1980
Disclosed is apparatus and method for accurately determining the direction of true north or the change in drift of other gyroscopes. The apparatus comprises a single degree of freedom gyroscope driven by a permanent magnet electric motor. The gyroscope rotor is spun by the motor at varyi
4199329 Process and apparatus for the removal of vaporized contaminants from closed gas system April 22, 1980
An eliminator of vaporized contaminants from gas in a closed system in which high pressure gas is subjected to a substantially adiabatic expansion with accompanying temperature drop at a point where the contaminants cannot cause problems. In the specific case of a gas bearing, contam
3963284 Friction reducing bearing June 15, 1976
A method and apparatus for reducing the friction in a ball-bearing pivot axis assembly. Within the bearing assembly, the balls are floated in a fluid lubricant and, especially in fully-floated units, the weight of the balls is an overriding consideration in the generation of sliding

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