US PATENT SUBCLASS 60 / 547.1
.~.~ With control of or by a separate power fluid, etc.

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.~.~ With control of or by a separate power fluid, etc. {9}
547.2  DF  .~.~.~> By pressure responsive valve dividing flow between motor and an auxiliary load
547.3  DF  .~.~.~> By manually operated valve dividing flow between motor and an auxiliary load
548  DF  .~.~.~> Flow in recirculating circuit controlled
549  DF  .~.~.~> Master structure provides non-overlapping periods of pressurization of diverse pressure ranges in distinct pulsator circuits
550  DF  .~.~.~> 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
551  DF  .~.~.~> Manual master and controller of motor driven master actuated by separate linkages to a common operating lever
552  DF  .~.~.~> Mechanical feedback to manual control controls power fluid to establish position of working member of master {2}
555  DF  .~.~.~> Master movement of master produces a pressure that controls the power fluid {2}
560  DF  .~.~.~> Power fluid also fed into a separate expansible chamber directly driving output means

DEFINITION

Classification: 60/547.1

With control of or by a separate power fluid, etc.:

(under subclass 533) Apparatus in which a motor driving the working member of a master is operated by a power fluid separate from the pulse fluid, the apparatus including structure controlling flow of the power fluid or responsive to a condition of the power fluid.

(1) Note. A power circuit and a pulse circuit that are replenished from the same supply and regarded as separate of the fluids of the two circuits remain operatively separate.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type, appropriate subclass for an expansible chamber motor per se or driving a nominal load. However, the combination of a expansible motor and its driven expansible chamber device disclosed solely as a master is in Class 60,

547+,.

188, Brakes,

355+, for a power operated fluid pressure system actuating a specific motion retarding device.