Dispenser head for dispensing a liquid which is pressurized by a gas in a container
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United States of America Patent
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-
Apr 8, 1997
Grant Date -
N/A
app pub date -
Jun 27, 1995
filing date -
Oct 22, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dispenser head serves to dispense a liquid which is pressurized by gas in a container having a valve. The dispenser head comprises a housing with a gas chamber and a tubular slide which can be moved up and down for opening and closing the valve. With a view to facilitating dismounting of the dispensing head when the container is empty, the wall of the housing is formed with a first gas channel which extends upwards from the gas chamber to a mouth. The slide is moreover formed with an annular groove communicating with said mouth in the upper slide position and via a second gas channel with the atmosphere. The positive pressure in the gas chamber is thereby relieved immediately when the slide is pulled up to close the valve, and the dispenser head can therefore be pulled clear of the valve flange easily and conveniently in the dismounting operation.
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