Fluid dispensing device

Details Fluid dispensing device Fluid dispensing device

2007-07-30

2010-11-23

Shaver, Kevin P (Department: 3754)

Dispensing

With recorder, register, indicator, signal or exhibitor

Position or extent of motion indicator

C222S153010, C222S153130, C222S321900

Reexamination Certificate

active

07837064

ABSTRACT:
A fluid dispensing device includes a barrel having a hollow interior, an inlet opening at one end and an open second end. A plunger is slidably received within the hollow interior of the barrel through the open second end and has an outlet passage extending through its length to an outlet outside of the barrel. An inlet valve is disposed at the inlet opening of the barrel and an outlet valve is carried within the outlet passage of the plunger. A closure is secured to the barrel over the open end of the barrel and over the plunger, with the closure urging the plunger into the barrel against the inlet valve such that the plunger engages the inlet valve and holds the inlet valve closed. Opening of the closure permits the plunger to be withdrawn from the barrel to draw fluid into the barrel through the inlet opening and the inlet valve. Return of the plunger into the barrel closes the inlet valve and forces the fluid in the barrel through the outlet passage and the outlet valve in the plunger.

REFERENCES:
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patent: 6443331 (2002-09-01), DeJonge
patent: 6675845 (2004-01-01), Volpenheim et al.
patent: 6726064 (2004-04-01), Bonningue
patent: 6866167 (2005-03-01), Bougamont
patent: 2005/0023285 (2005-02-01), Keung

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