Vacuumized internal sizing ring assembly and method of use
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United States of America Patent
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Apr 20, 1993
Grant Date -
N/A
app pub date -
Dec 12, 1991
filing date -
Dec 12, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Internal sizing ring assembly and method for its use on a stuffing horn to extract air from within a tube-like casing having a closed end during stuffing operations, includes a sizing ring having an inner mounting surface adapted to conform to the outer surface of the stuffing horn, a peripheral casing-expanding surface to expand the casing into an open configuration, and front and back surfaces; and vacuum means defined by at least one port extending through the sizing ring and a longitudinally extendable tube connected to the port and in cooperation with a vacuum source. The internal sizing ring assembly can further include a hollow mold having an internal cross-section configured to slidingly receive the sizing ring with the casing effectively sealed between the two for producing shaped products substantially free of air voids.
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