Method and apparatus for shrinking a container closure
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United States of America Patent
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-
Sep 14, 1982
Grant Date -
N/A
app pub date -
Mar 26, 1981
filing date -
Mar 28, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a method of shrinking screw caps (2) on to the mouths (1) of containers (13), the screw caps are acted upon by a hot gas jet (7, 8) from nozzles (3, 4), along a feed path (6), from both sides. The flow axes (7, 8) are displaced relative to each other so that there are no pressure build-up and stagnation effects. The resulting advantageous temperature pattern at the nozzles means that savings in heating output can be attained. In addition, there is no longer any need for the bottles to be rotated about their own axis (10).
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