Discharge device

Details Discharge device Discharge device

2008-04-29

2011-10-18

Shaver, Kevin P (Department: 3754)

Dispensing

With filter

Associated with vent passage

C222S321300, C222S321700, C222S380000

Reexamination Certificate

active

08038036

ABSTRACT:
The invention relates to a discharge device for discharging liquid medium, with a pump device with a variable volume pump chamber, a discharge opening for the liquid medium, a feed path between the pump device and the discharge opening, and an outlet valve which is designed to open the discharge opening as a function of the pressure in the feed path, and to a discharge head provided for this purpose. The discharge device or the discharge head has a gas-permeable and liquid-tight air outlet which connects the pump chamber or the feed path to an external environment.

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