A filling machine for supplying predetermined quantities of liquid is disclosed
. The filling machine comprises a measuring chamber, a float positioned with clearance in the chamber and adapted to move up and down in at least a portion of the chamber with the level of liquid in the chamber, an abutment positioned in the chamber above the float for limiting the upper movement of the float in the chamber, and a seal adjacent the abutment for sealing against the chamber, the seal being arranged such that it can be moved into and out of sealing engagement with the chamber without disassembly of the filling machine thereby facilitating cleaning of the machine.
The present invention relates to a filling machine for supplying predetermined quantities of liquid to containers, for example. In particular, the invention relates to an improved filling machine which reduces problems of contamination when liquids which must be of high purity are measured and supplied and which permits the entire measuring chamber of the filling machines to be cleaned without disassembly or extensive special adjustment of the components of the machine.
Contamination of the liquid being measured and supplied is a problem associated with the use of known filling machines. This problem is of particular concern where the filling machines are used in dispensing materials which must be of high purity, such as pharmaceutical drugs and medicines. When several such materials must be successively dispensed from the same filling machine, the filling machine must be cleaned or sterilized after each of the respective materials is dispensed to avoid contamination.