Method of manufacturing containers for dispensing solutions
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United States of America Patent
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-
Feb 2, 1999
Issued Date -
N/A
app pub date -
Jul 17, 1997
filing date -
Nov 24, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method of manufacturing containers for dispensing solutions, includes the steps of: (a) extruding a parison from a die while injecting supporting air into the parison, and sealing a forward part of the extruded parison; (b) forming a middle portion of the parison constituting a barrel portion of a container to be produced, during extrusion of the parison, so as to have a wall thickness thinner than the forward part of the parison; (c) injecting air into the parison, after being inserted into a mold with a vacuum mechanism, to blow it out while keeping a pressure in the interior of the mold to a value lower than an internal pressure of the parison, and cutting off the parison from the die to form a container, (d) inserting a mandrel into the molded container through a cut opening of the container after transferring the mold retaining the molded container to a solution-charging station and charging a medical solution into the molded container; and (e) pulling the mandrel out of the container after charging a medical solution into the molded container, and sealing the opening of the solution-charged container.
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