US PATENT SUBCLASS 188 / 266.3
.~.~.~ Of the rotary type

Current as of: June, 1999
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188 /   HD   BRAKES

266  DF  INTERNAL-RESISTANCE MOTION RETARDER {29}
266.1  DF  .~ Motion damped from condition (e.g., bump, speed change) detected outside of retarder {1}
266.2  DF  .~.~ Condition actuates valve or regulator {2}
266.3.~.~.~ Of the rotary type {1}
266.4  DF  .~.~.~.~> Having plural openings

DEFINITION

Classification: 188/266.3

Of the rotary type:

(under subclass 266.2) Valve which turns about an axis to align an opening to control flow.