Package making – Methods – Forming a cover adjunct or application of a cover adjunct to...
Patent
1998-04-17
1999-03-09
Moon, Daniel B.
Package making
Methods
Forming a cover adjunct or application of a cover adjunct to...
531342, B65B 2904
Patent
active
058785507
ABSTRACT:
Infusion packets have envelopes of heat-sealable material with a looped thread within the packets to wring moisture from the packet in use. A central part of the thread loop is held in a widened region of one edge seal while the ends of the loop project through the opposite edge seal in which they are movable when the loop is to be contracted. The packets are produced by forming a continuous series of thread loops on one elongate web and placing doses of infusion material on a second elongate web before bringing the webs together with the thread loops and infusion material between them. The two webs are then welded together and the individual packets are separated from the joined webs.
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Cahill Michael John
Vernon Geoffrey William
Farrell James J.
Lipton division of Conopco, Inc.
Moon Daniel B.
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