Method for forming an interlocked assembly
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United States of America Patent
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Dec 15, 1981
Issued Date -
N/A
app pub date -
Jan 21, 1980
filing date -
May 28, 1974
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method of forming an interlocked assembly of a base cup and a hollow plastic article including the steps of providing a groove in the side wall of either the article or cup engageable with a protrusion in the side wall of the other of said article or cup, internally pressurizing the article to harden same and outwardly expand the side walls, and forming an interlocked assembly by placing the base cup on the article to deform the side walls of the base cup by the hardened article and snap the groove and protrusion together.
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