Dispensing – With discharge assistant – With movable nozzle interconnected therewith
Reexamination Certificate
2007-06-19
2010-11-23
Ngo, Lien T (Department: 3754)
Dispensing
With discharge assistant
With movable nozzle interconnected therewith
C222S340000
Reexamination Certificate
active
07837070
ABSTRACT:
A simplified pump for dispensing fluid substances withdrawn from a container of said substances, comprising a cup-shaped body into which a hollow stem extends, an endpiece of the cup-shaped body, said cup-shaped body presenting a passage, closable by a valve, and a seat for housing one end of a dip tube, a piston, an elastic member and a movable valve for closing the stem cavity, an elongated rod, a first end of which is inserted into and retained in a seat provided at the second end of the cup-shaped body, an intermediate portion of the rod having a cylindrical profile of diameter less than the diameter of the stem cavity into which said rod portion extends, said movable valve for closing the stem cavity comprising a continuous elastic lip projecting from a second end of the rod towards the outside of said cylindrical chamber, said lip being sealedly slidable in contact with the cylindrical surface of the stem cavity.
REFERENCES:
patent: 3229864 (1966-01-01), Roder
patent: 3877616 (1975-04-01), Stevens
patent: 4111367 (1978-09-01), Hayes
patent: 4371097 (1983-02-01), O'Neill
patent: 5443569 (1995-08-01), Uehira et al.
patent: 6332561 (2001-12-01), Garcia et al.
patent: 7048153 (2006-05-01), Gentile
patent: 7578417 (2009-08-01), Son
patent: 2005/0115990 (2005-06-01), Kang
patent: 2008/0083783 (2008-04-01), Nelson
patent: 2008/0083784 (2008-04-01), Foster et al.
patent: 0 340 724 (1989-11-01), None
patent: 2 643 338 (1990-08-01), None
MEADWESTVACO CALMAR S.r.l.
Ngo Lien T
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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