Dispensing – With discharge assistant – With biasing means for discharge assistant and/or its casing
Reexamination Certificate
2006-10-16
2009-12-29
Ngo, Lien T (Department: 3754)
Dispensing
With discharge assistant
With biasing means for discharge assistant and/or its casing
C222S383100
Reexamination Certificate
active
07637396
ABSTRACT:
A manually operated trigger sprayer is constructed with a reduced number of parts and in a novel manner in which the conventional metal coil spring is replaced with a pair of plastic bowed springs that are integral with the piston rod and the pump piston is connected to the piston rod by a ball and socket connection.
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Foster Donald D.
Stark Jeffrey P.
MeadWestvaco Clamar, Inc.
Ngo Lien T
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