US PATENT SUBCLASS 53 / 99
.~.~.~ Gravity plunger or platen

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

79  DF  GAS FILLING AND/OR EVACUATING OF RECEPTACLE AND CLOSING {5}
86  DF  .~ Within enclosure {5}
97  DF  .~.~ With closure assembling means {4}
99.~.~.~ Gravity plunger or platen {1}
100  DF  .~.~.~.~> With drop control

DEFINITION

Classification: 53/99

(under subclass 97) Apparatus wherein a weight acts on a closure member to urge said member into sealing position.