Patent ID: 6360920
Filing Date: 2002-03-26
Classification: B65B,G01F

Abstract:
Volumetric dosing apparatus for pasty material, of the type which includes a dosing chamber having an axial development, provided in its interior with a plunger which can be freely moved by a pasty material introduced from a first end of said chamber from a first position up to a second position and to be thereafter driven in the opposite direction by means of fluid under pressure introduced from a second end of the chamber, to come back to said first position moving a dosed volume of pasty material delimited between first and second positions to expel it through said first end, said chamber being associated at its first end to a first opening of a housing which houses a valve body said housing having a second opening connected to an inlet duct of pasty material and a third opening connected to an outlet duct of pasty material, driving means being provided for moving said valve body within said housing so that said second opening remains communicated with said dosing chamber while said dosing chamber communicates successively and alternately with said third opening through the valve body, characterized in that said chamber is hinge-joined with respect to the housing, and it can tilt to provide an access to the housing, valve body and dosing chamber for their cleaning and/or withdrawal.