Patent ID: 6237650
Filing Date: 2001-05-29
Classification: A61J,B65B

Abstract:
A machine for metering liquid pharmaceutical products into bottom shells (2), comprising:a bottom part (5) rotating about a respective vertical axis (X);at least one first vertical through hole (22) formed in said bottom part (5);at least one piston (11) moved in reciprocating manner along said first hole (22) by a first device (21);a bottom-shell (2) belt (13) meshing with a portion (12) of said bottom part (5) and traveling along the whole of the system of which said machine forms part;a rotary top part (3) having a vessel (6) containing said pharmaceutical product;a rotary central part (4) coaxial and angularly integral with said bottom part (5) and said top part (3);drive means (18) for driving said parts (3, 4, 5);at least one second hole (34) associated with said first hole (22) and formed radially along said central part (4);at least one valve (8) housed in said second hole (34);a first and a separate second channel are formed in said valve (8);a second device (77, 78) for rotating said valve (8), about a horizontal axis (Y), between a first angular position in which said first channel hydraulically connects the inside of said vessel (6) to a metering chamber (42a) defined along said first hole (22), and a second angular position in which said second channel is adapted to hydraulically connect said chamber (42a) to the inside of said bottom, shell (2); andwherein, between said second channel and said bottom shell (2), there is fitted an on-off valve (51) which permits passage of the liquid when a quantity of liquid of a pressure greater than a predetermined value is fed over said on-off valve (51), so as to prevent dripping of the leftover liquid on top of said on-off valve (51).