B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/937
B29C 57/10 (2006.01)
Patent
CA 1103876
ABSTRACT OF THE DISCLOSURE A bottom in a tube having an open end is formed by heating the tube and a supporting mandrel and advancing a sleeve over the end of the tube which flares outwardly after heating so as to collapse the flared end. The collapsed end of the tube is closed by contacting the collapsed end with a mold which cooperates with the sleeve to form the bottom.
297523
Greenspan Donald J.
Smart & Biggar
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