Filling device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 4, 1989
Issued Date -
N/A
app pub date -
Mar 27, 1987
filing date -
Jun 27, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filling device for sterile filling of containers. A flexible temporary storage container is placed in a dosage chamber and exposed to external over-pressure and under-pressure, respectively. The filling goods is sucked into the temporary storage container and pressed out to the final storage container. A device for fine adjustment of the volume of the chamber has the shape of an adjustable membrane. In one embodiment the temporary storage container comprises two semi-spheres, of which one is rigid and the other flexible. The flexible part forms a membrane having an area equal to the inner area of the rigid semi-sphere. In order to promote natural rolling of the membrane on the inner surface of the rigid semi-sphere, the membrane has reduced wall thickness in a direction towards the margins thereof.
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