Dispensing – With discharge assistant – Container with follower
Reexamination Certificate
2011-03-22
2011-03-22
Nicolas, Frederick C. (Department: 3754)
Dispensing
With discharge assistant
Container with follower
C222S001000, C222S326000, C222S386000
Reexamination Certificate
active
07909211
ABSTRACT:
A dispensing cartridge with a vented piston is disclosed. The piston includes a piston shell and a bleed plug. The arrangement of the piston shell and the bleed plug allows air to be vented through the piston until all of the air is vented out of the dispensing cartridge. With the air vented out of the dispensing cartridge, the piston self-into actuates into a closed sealed position in which the bleed plug forms a seal with the piston shell to prevent further fluid from flowing between the two elements.
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Nicolas Frederick C.
Nordson Corporation
Wood Herron & Evans L.L.P.
LandOfFree
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