Geometrical instruments – Indicator of direction of force traversing natural media – Gyroscopically controlled or stabilized
Reexamination Certificate
2010-03-19
2011-11-22
Bennet, Brad (Department: 2841)
Geometrical instruments
Indicator of direction of force traversing natural media
Gyroscopically controlled or stabilized
C033S304000, C033S321000
Reexamination Certificate
active
08061048
ABSTRACT:
An apparatus for azimuth measurements is provided. The apparatus comprises a housing and a plurality of gyro sensors aligned in the housing. Each of the plurality of gyro sensors has an input axis for angular velocity measurements. There is provided a drive unit for rotating each of the plurality of gyro sensors about a rotation axis. Each of the plurality of gyro sensors changes orientation of the input axis with the drive unit.
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Igarashi Juei
Imamura Tsunehiko
Kamiya Akira
Sato Shigeru
Yamate Tsutomu
Bennet Brad
DeStefanis Jody
Griffin Jeff
Schlumberger Technology Corporation
Tamagawa Seiki Co., Ltd.
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