Electrostatic method and apparatus for opening liners within containers
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United States of America Patent
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Apr 6, 1993
Grant Date -
N/A
app pub date -
Sep 8, 1992
filing date -
Sep 8, 1992
priority date (Note) -
Expired
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Abstract
Electrostatic method and apparatus for opening liners within containers and maintaining such liners in spread apart disposition preparatory to filling comprises (1) A.C. electrostatic ionizing means for directing a stream of bipolar air ions toward the outer walls of the containers substantially symmetrical therewith, and (2) D.C. electrostatic charging means for directing an ion wind of a single polarity toward the interior of liners within the containers whereby the liners and the containers will be charged to opposite polarities to cause electrostatic pinning of the liners to the interior of the containers and effect opening thereof while the net charge on the package is substantially neutral. Subsequent to opening, the spread apart liners in the containers may be easily filled with the appropriate material.
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