US PATENT SUBCLASS 60 / 550
.~.~.~ Master driven by manual power control lever on power failure and having means adjusting lever throw or master resistance responsive to failure of power fluid supply

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

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
533  DF  .~ Pulsator {25}
547.1  DF  .~.~ With control of or by a separate power fluid, etc. {9}
550.~.~.~ Master driven by manual power control lever on power failure and having means adjusting lever throw or master resistance responsive to failure of power fluid supply

DEFINITION

Classification: 60/550

(under subclass 547) Apparatus, including structure effective upon a sensed failure of the power driven motor or of the motor energy supply to increase the leverage of the operator driven means, to lengthen the stroke of such means, to disconnect the motor, or in some other manner reduce the effort required in the use of the manual operating member.