Envelopes – wrappers – and paperboard boxes – Paperboard box – End structure
Patent
1985-10-02
1987-01-20
Price, William
Envelopes, wrappers, and paperboard boxes
Paperboard box
End structure
220 66, 220359, 220458, 229 43, B65D 314
Patent
active
046375430
ABSTRACT:
A fiber can is made up of a laminated can body with a gas-tight, fusible lining, a lower end wall shutting off one end of the body and a partly metallic cover on the other end of the body. The cover is made up of a rigid cover member crimped on the body having an opening and an inner fusible coating that has an affinity for the lining of the body of the can and which is heat sealed thereto when the cover member is fixed in place on the can body. The opening in the cover member is shut by a covering diaphragm that is fixed in place by adhesively bonding or welding to the cover member and is so elastic or is so pre-shaped that it is able to follow and keep up with the pressure difference between the inside of the can and the outside after the can has been sealed.
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Gehman Bryon
Price William
Weidenhammer Packungen KG GmbH & Co.
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