| US 7,527,084 B2 | ||
| Apparatus and process for placement of sealing adhesives on containers | ||
| Krzysztof Kaczkowski, 1317 Logan Cir., NW., Atlanta, Ga. 30318 (US) | ||
| Filed on Aug. 10, 2005, as Appl. No. 11/201,012. | ||
| Claims priority of provisional application 60/602694, filed on Aug. 19, 2004. | ||
| Prior Publication US 2007/0034340 A1, Feb. 15, 2007 | ||
| Int. Cl. B29C 65/00 (2006.01); B32B 37/00 (2006.01); B32B 38/04 (2006.01); B32B 38/10 (2006.01); B65C 11/04 (2006.01) | ||
| U.S. Cl. 156—510 [156/521; 156/531; 156/578] | 7 Claims |
| 1. A machine for placing glue strips on folded cardboard containers as the containers travel through the machine, the machine
being fed by at least one roll of release coated paper during use, comprising:
(a) means for slicing the wide roll of paper into at least two narrower strips of paper;
(b) means, including an initial drive pulley and an inertia reducing clutch, for handling each strip of paper as it is being
fed through the machine in such a manner as to reduce the stress on the strip, the means for handling each strip of paper
further including an elongated chamber in which an elongated loop of the strip is tensioned by a vacuum; the initial drive
pulley, when energized, pulling the strip from the elongated chamber; the clutch having a torsion spring attached to the shaft
of the initial drive pulley, so that on starting rotation the torsion spring acting on the pulley allows a slight slippage
as it winds the spring, this slippage reducing the initial shock of the load on the strip, and when the pulley suddenly stops,
the spring tending to push the pulley in a direction opposite to its rotation, again reducing strain on the strip;
(c) means for cutting individual segments of a desired length from one end of each strip; and
(d) an injector for putting a layer of glue on each segment just prior to its placement on one of the folded cardboard containers.
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