Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Patent
1980-07-24
1983-02-01
Coan, James F.
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
493259, B31B 152, B31B 180
Patent
active
043713670
ABSTRACT:
An apparatus for opening and folding the end of a flattened tubular sheet to define the rectangular base of a bag or sack to be made from the sheet comprises a table having a slot through which the flattened sheet projects, the projection being formed into a bag base by suckers locating the projection in a pre-opened condition and grippers which engage opposed margins of the projection, one of the grippers being fixed and the other being secured to a pivotable arm.
REFERENCES:
patent: 1165765 (1915-12-01), Duvall
patent: 2224656 (1940-12-01), Robinson
patent: 3250187 (1966-05-01), Kasting
patent: 3547010 (1970-12-01), Gennerich et al.
Achelpohl Fritz
Decker Werner
Coan James F.
Windmoller & Holscher
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