US PATENT SUBCLASS 49 / 132
.~ Treadle actuated

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

131  DF  CLOSURE SURFACE MOVED TO INOPERATIVE POSITION FLUSH-WITH-GROUND {1}
132.~ Treadle actuated {1}
133  DF  .~.~> Actuation raises closure to blocking position {1}

DEFINITION

Classification: 49/132

(under subclass 131) Device provided with a treadle operated mechanical means imparting movement to the closure, the operation of the means being effected by the weight of an object, such as a foot or vehicle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

263+, for a pedal, treadle or impact actuated operator.