US PATENT SUBCLASS 188 / 293
.~.~ Driving relatively moving element which causes flow of brake fluid

Current as of: June, 1999
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188 /   HD   BRAKES

266  DF  INTERNAL-RESISTANCE MOTION RETARDER {29}
290  DF  .~ Using a rotary-type fluid damper {4}
293.~.~ Driving relatively moving element which causes flow of brake fluid {2}
294  DF  .~.~.~> With means for regulating movement of element
295  DF  .~.~.~> Comprising rectilinearly reciprocating piston

DEFINITION

Classification: 188/293

(under subclass 290) Device wherein a connection between said first member and said mechanism converts turning of the

mechanism about its axis into reciprocation of the member perpendicular to said axis; said reciprocation resulting in circulation of fluid medium in which the member reciprocates.

(1) Note. The reciprocation is usually effected by a crank, cam or shaft revolving eccentrically of the axis of the mechanism, to which eccentric a vane or piston is connected.

(2) Note. In this subclass, the brake usually includes a drum rotated by a wheel, which drum carries vanes extending radially from the axis and parallel thereto. The drum and its vanes rotate within a fluid-filled housing having an inner periphery eccentric to the axis. The revolving vanes, radially urged against the housing, effect circulation of fluid.