Manufacturing container or tube from paper; or other manufacturi – Container or tube erecting – opening – or collapsing – By direct application of vacuum or fluid pressure
Patent
1989-02-09
1991-02-19
Schmidt, Frederick R.
Manufacturing container or tube from paper; or other manufacturi
Container or tube erecting, opening, or collapsing
By direct application of vacuum or fluid pressure
493309, 493313, B31B 178, B31B 180
Patent
active
049940112
ABSTRACT:
Apparatus for opening flat folded sleeve packaging into a parallelepiped packaging shape and for positioning that packaging for further manufacture which includes a feeder pivotable through a quarter-circle so as to grasp the flat sleeve from a source and to guide the sleeve to a position in axial alignment with a spaced apart mandrel and ejector, the mandrel being adapted to receive the parallelepiped sleeve by the action of the ejector, a V-shaped abutment positioned to receive a leading folded edge of the sleeve at the quarter-circle position of the feeder, and a V-shaped aligned pair of pivoting levers adjacent the V-shaped abutment, the pivoting levers having bearing planes formed thereon and having vacuum apertures formed therein, the levers adapted to function to open a sleeve supported thereby in cooperation with the feeder and the abutment, the bearing planes of the lever providing guiding support for the opened sleeve upon action of the ejector thereon.
REFERENCES:
patent: 2881682 (1959-04-01), Engleson et al.
patent: 3783752 (1974-01-01), Langen et al.
patent: 4340380 (1982-07-01), Calvert
patent: 4562692 (1986-01-01), Scarpa et al.
patent: 4787881 (1988-11-01), Andersson et al.
Lavinder Jack
Schmidt Frederick R.
Tera Pak Finance & Trading S.A.
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