US PATENT SUBCLASS 60 / 406
.~.~ Output means locked, positioned or released on failure of motive fluid supply means

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
403  DF  .~ Apparatus having means responsive to or ameliorating the effects of breakage, plugging, mechanical failure or power failure {3}
406.~.~ Output means locked, positioned or released on failure of motive fluid supply means

DEFINITION

Classification: 60/406

(under subclass 403) Apparatus in which an output means is locked, braked, released or moved to and retained in a desired position responsive to power failure, or loss of motive fluid supply or pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

460, for a system having a holding or braking valve in the exhaust line effective upon discontinuance of motor feed pressure to lock the motor in position.