Dispenser for liquid or pasty materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Apr 21, 1998
filing date -
Oct 23, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides a dispenser of substance in liquid or paste form, the dispenser being of the type comprising, in particular, a cylinder (1) of substance surmounted firstly by an endpiece (2) provided with an internal evacuation duct (2a) and fitted, secondly with a substance-taking system provided with an exhaust valve, the dispenser being characterized in that the substance-taking system comprises a piston (3) received in the cylinder (1) and having an axial duct (30) passing therethrough and connected to an outlet tube (4) whose bottom end (4a) cooperates with the axial duct (30) to define an admission orifice (40) and whose top end (4b) is secured to the endpiece (2) forming a pushbutton which bears directly or indirectly on the outside face (3a) of the piston (3) to put the cylinder (1) under pressure.
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