US PATENT SUBCLASS 53 / 381.6
.~.~ Including means to apply suction to grip envelope


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

381.1  DF  MEANS TO OPEN OR ERECT RECEPTACLE {6}
381.5  DF  .~ Means to open envelope {2}
381.6.~.~ Including means to apply suction to grip envelope


DEFINITION

Classification: 53/381.6

Including means to apply suction to grip envelope:

(under subclass 381.5) Apparatus including means to engage the cover and reduce the pressure at the area of engagement such that atmospheric pressure forces the cover area to adhere to the engaging means in order to manipulate that area of the cover.