Dispenser for extrudable material including dispensing from collapsible containers
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United States of America Patent
Stats
-
Jun 28, 1994
Grant Date -
N/A
app pub date -
Feb 8, 1993
filing date -
Feb 8, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dispenser is provided for dispensing the extrudable contents of a collapsible container having a nozzle through which the container can be discharged by collapsing the container. The dispenser is of a piston/cylinder device, with the piston having a container-engaging face provided with a contoured structure of a predetermined configuration corresponding generally to a collapsing profile of the collapsible container. An elongated flexible valve device is slidably mounted relative to the housing and includes a coupling end coupled directly to a trigger member of the dispenser and a valve end for opening and closing an opening in the housing which defines the cylinder of the device. The flexible valve device is a band member of plastic material and is operatively associated with a mechanism for holding the valve open when a cover of the housing is removed and for automatically closing the valve when the cover is replaced. A pistol grip handle and the trigger of the dispenser are ergodynamically configured for ease of operation. A set of interchangeable stop cams are provided for positioning between the trigger and the pistol grip handle for selectively determining a metered amount of material to be dispensed by the dispenser for each actuation of the trigger.
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