US PATENT SUBCLASS 53 / 269
.~.~ Closing mechanism tripped by vented air

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

266.1  DF  MEANS TO FILL AND CLOSE PREFORMED RECEPTACLE {10}
268  DF  .~ With common fill-close stations {7}
269.~.~ Closing mechanism tripped by vented air

DEFINITION

Classification: 53/269

(under subclass 268) Apparatus in which the closure applying means is initiated by air forced out of the receptacle during the filling operation.