Capacitive balance leveling device

Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive

Reexamination Certificate

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Details

C033S366120, C033S390000

Reexamination Certificate

active

06993849

ABSTRACT:
An aerospace system includes a leveling device defining two plane levels (yz-plane and xz-plane). The plane levels are included within an inertial measurement unit and each of the plane levels includes two capacitance controlled oscillators. Each of the capacitance controlled oscillators includes a quad capacitor bubble sensor.

REFERENCES:
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patent: 3290786 (1966-12-01), Parkin
patent: 4583296 (1986-04-01), Dell'Acqua
patent: 5079847 (1992-01-01), Swartz et al.
patent: 5180986 (1993-01-01), Swartz et al.
patent: 5774996 (1998-07-01), Ogawa et al.
patent: 6449857 (2002-09-01), Anikolenko
patent: 6688013 (2004-02-01), Greway

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