US PATENT SUBCLASS 182 / 68.1
.~.~ Extension ladder pivotally mounted to be erected about a horizontal axis


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

63.1  DF  HAVING TRANSPOSITIONING BASE AND ERECTING MEANS {4}
64.1  DF  .~ Ladder pivotably mounted on transpositioning base (e.g., on vehicle) {2}
68.1.~.~ Extension ladder pivotally mounted to be erected about a horizontal axis {3}
68.2  DF  .~.~.~> Having winch means for erecting ladder
68.3  DF  .~.~.~> Having gear means for erecting ladder
69.1  DF  .~.~.~> Having lazy tong extending means {2}


DEFINITION

Classification: 182/68.1

Extension ladder pivotally mounted to be erected about a horizontal axis:

(under subclass 64.1) Device comprising a plurality of coextensive, elongated ladder units designed to be moved along their longitudinal axis relative to one another wherein the ladder is mounted for movement about a horizontal axis.