Package making – Interrelated or safety controls
Patent
1975-04-23
1976-05-25
McGehee, Travis S.
Package making
Interrelated or safety controls
53 30S, 53184S, 53124C, 53124D, 53124CC, 100223, B65B 124, B65B 5302, B65B 6302
Patent
active
039583929
ABSTRACT:
Method and apparatus for packaging articles in a heat-shrinkable film. The packaging assembly includes a rotary drive means and a plurality of radial arms engagable with the drive means. An article handling apparatus consisting of a lower platen and an upper, pressure-applying platen is carried by each arm. At a loading station, a stack of the articles to be packed is compressed to a predetermined amount and a heat-shrinkable bag is applied about the package. The compressed package with the heat-shrinkable bag is then engaged with the drive means and then is directed through a heating tunnel and cooling station where it is heated and cooled for a sufficient time and at a sufficient temperature to cause the bag to shrink around the still compressed stack holding it to a positive fixed repeatable height dimension while leaving an opening in the bag at the top. The thus enclosed stack is then sent to a discharged station where it is delivered to a conveyor means or other suitable stack-handling means.
REFERENCES:
patent: 3125842 (1964-03-01), Ferguson
patent: 3581460 (1971-06-01), Lambsdorff
H. G. Weber and Company, Inc.
McGehee Travis S.
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