US PATENT SUBCLASS 74 / 5.41
.~.~ Erecting

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

5 R  DF  GYROSCOPES {10}
5.4  DF  .~ Gyroscope control {2}
5.41.~.~ Erecting {6}
5.42  DF  .~.~.~> By plural diverse forces
5.43  DF  .~.~.~> By jet
5.44  DF  .~.~.~> By weight
5.45  DF  .~.~.~> By friction
5.46  DF  .~.~.~> By magnetic field
5.47  DF  .~.~.~> By motor torque

DEFINITION

Classification: 74/5.41

(under subclass 5.4) Devices wherein one or more forces act to move the rotor axis to a given position, usually to a vertical position.

(1) Note. Where the force of the surrounding atmosphere against a plurality of vanes is used for erection, the patent will be found in this subclass.