Package making – Closing packages and filled receptacles – Including provision for pleat of cover overhang
Patent
1979-02-22
1980-07-29
Culver, Horace M.
Package making
Closing packages and filled receptacles
Including provision for pleat of cover overhang
B65B 706
Patent
active
042144175
ABSTRACT:
For retaining the bag top of a filled bag in an upright aligned condition as the filled bag is dropped onto a filled bag conveyor after having been clamped to a spout assembly and being conveyed to a bag top closure machine, bag top forming and retaining apparatus that includes a longitudinally elongated pivot member pivotally mounted on the frame and mounting a pair of fingers for pivotal movement therewith and pivotal movement relative thereto between a spread apart (out) position and a together "in" position, a piston cylinder subassembly for pivoting the pivot member to elevate the fingers to a position to drop into the bag mouth portion when the bag is clamped on the spout and the fingers are in their in position, thus allow the fingers to drop to an intermediate elevation to extend into the bag, and when the filled bag is released by the spout, move to a lower elevation to remain in the bag, a swing arm conveyor assembly, and control means to move the fingers to their out position when the fingers are at their intermediate elevation and thus move the fingers to their in position and operate the piston cylinder subassembly to elevate the fingers out of the bag after the swing arm conveyor assembly has conveyingly engaged at least the bag top leading edge portion.
REFERENCES:
patent: 3167897 (1965-02-01), Hopkins et al.
patent: 3896605 (1975-07-01), Chevalier
patent: 4078358 (1978-03-01), Henderson
patent: 4098054 (1978-07-01), Cerioni
Bemis Company Inc.
Culver Horace M.
Johnson Clayton R.
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