US PATENT SUBCLASS 318 / 563
.~ With protective or reliability increasing features (e.g., "fail-safe" systems)

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
563.~ With protective or reliability increasing features (e.g., "fail-safe" systems) {3}
564  DF  .~.~> "Redundant" operating channels
565  DF  .~.~> Monitoring systems
566  DF  .~.~> Maneuver, force, or load-limiting

DEFINITION

Classification: 318/563

(under subclass 560) System in which the system includes means to protect or guard against system failure.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

360, for fluid motor systems with fail safe features.

244, Aeronautics,

175+, for fail safe circuitry used in conjunction with autopilots. 307, Electrical Transmission or Interconnection Systems,

326+, for electrical transmission or interconnection systems with fail safe or protection features.

361, Electricity: Electrical Systems and Devices,

1+, for electrical systems with fail safe features.

364, Electrical Computers and Data Processing Systems,

184+, for protective or reliability features in combination with a data processing control system.

395, Information Processing System Organization,

180+, for reliability and availability, fault recovery, locating, and avoidance in digital data processing systems; and subclasses 750.01+ for power control in a digital data processing system.