US PATENT SUBCLASS 188 / 355
.~.~.~ With nonmanual fluid-power source
Current as of:
June, 1999
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188 /
HD
BRAKES
*
DD
OPERATORS
{11}
151 R
DF
.~ Fluid pressure {4}
152
DF
.~.~ Road vehicle {13}
355
.~.~.~ With nonmanual fluid-power source {3}
356
DF
.~.~.~.~
> Vacuum power {1}
358
DF
.~.~.~.~
> Liquid power {1}
360
DF
.~.~.~.~
> And manual
DEFINITION
Classification: 188/355
(under subclass 152) Device including means for supplying liquid and/or air pressure from a pump or pump tank.
(1) Note. A simple and direct manual or pedal operated force is not considered to be a "pump" for this subclass.
(2) Note. Control of the brake is generally by means of valving.
SEE OR SEARCH THIS CLASS, SUBCLASS:
348, for power quick-slack-take-up means.
SEE OR SEARCH CLASS
60, Power Plants, appropriate subclasses for a booster device combined with a master cylinder.
91, Motors: Expansible Chamber Type, appropriate subclasses for a booster, per se.
