Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1973-11-23
1976-07-13
Whitby, Edward G.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
53 33, 93 3605, 93 94R, 156187, 156203, 156256, 156266, 156306, 156322, 156450, 156466, 156 86, 228 8, 228123, 264160, 264299, 264319, B29D 2310
Patent
active
039691730
ABSTRACT:
A cup or other container is fabricated from two continuous web stocks. The sidewall, which is formed from a rectangular sheet-like blank of thermoplastic material cut from one web, is produced by winding the blank in a cylindrical winding mechanism to present the edges in overlapping relationship, heating the edges as the cylindrical blank is transferred axially in the winding mechanism, and compressing the edges between seaming rollers to join the edges into a liquid-tight seam. The cylindrical sleeve is placed on an upward-facing forming mandrel carried on a conveyor. A bottom disc closure is partially cut from a second web, transferred by the web into overlying relationship with the path of the forming mandrels, punched from the web, and deposited on the top of the forming mandrel preparatory to reception of the cylindrical sleeve. The cylindrical sleeves are shrunken about the forming mandrels to cause them to assume the shape thereof. The disc is joined to the shrunken sleeve to provide a liquid-tight seam at the bottom of the container. A rim is formed at the opposite end of the container by reciprocating die mechanisms which cooperate with the forming mandrels to finish the containers while on the forming mandrels.
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Amberg Ralph G.
Amberg Stephen W.
Owens--Illinois, Inc.
Whitby Edward G.
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