Servo-controlled apparatus for filling containers
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United States of America Patent
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-
Jul 7, 1992
Grant Date -
N/A
app pub date -
Jan 7, 1991
filing date -
Jan 7, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for filling containers includes a food product fill pump having a valve member and pump piston operated by respective cam drives. A servo-controlled drive motor drives the cams, whereby the speed of the pump operation can be controlled independently of an associated container conveyor. Significantly, the servo-control of the apparatus permits the pump piston of the food pump to be operated during its container-filling advancing stroke at a substantially constant speed, while the pumping cycle time is selectively varied by selectively varying the speed of the piston retraction stroke.
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