US PATENT SUBCLASS 182 / 233
.~.~ Fluid resistance brake


Current as of: June, 1999
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182 /   HD   FIRE ESCAPE, LADDER, OR SCAFFOLD

3  DF  TORSO HARNESS {5}
231  DF  .~ Attached to strand wound on reel, and means for retarding unwinding of strand {4}
233.~.~ Fluid resistance brake


DEFINITION

Classification: 182/233

Fluid resistance brake:

(under subclass 231) Device wherein the slowing or stopping means includes a brake which utilizes the force of a fluid against a portion of the brake structure.

SEE OR SEARCH CLASS

187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,

346, for a fluid governor carried upon an elevator car and driven by the movement of the car.

188, Brakes,

266+, for internal resistance motion retarders.

254, Implements or Apparatus for Applying Pushing or Pulling Force, 377, for a driven drum which pulls on a cable and includes a fluid-resistance brake for retarding the rotation of the drum.