US PATENT SUBCLASS 188 / 312
.~.~ Having piston rod extending through ends of chamber

Current as of: June, 1999
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188 /   HD   BRAKES

266  DF  INTERNAL-RESISTANCE MOTION RETARDER {29}
297  DF  .~ Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) {7}
312.~.~ Having piston rod extending through ends of chamber

DEFINITION

Classification: 188/312

(under subclass 297) Device wherein said container is an elongated cylinder having two extremities defining the length dimension thereof, and said member is a piston having two faces each oriented toward one of said extremities, to each of which faces is connected a shaft that reaches through a respective extremity, at least one of said shafts being connected to a load.