Plunger mechanism with a self-contained positioning device
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United States of America Patent
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Aug 6, 1991
Grant Date -
N/A
app pub date -
Dec 4, 1990
filing date -
Jan 23, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A plunger operating mechanism for forming parisons in a glassware forming machine comprises a piston and a positioning unit for determining the position of the plunger in its loading and invert positions, the positioning unit being held removable from the mechanism as a unit.
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