Method of and means for easy opening bags

Details Method of and means for easy opening bags Method of and means for easy opening bags

1984-06-15

1986-05-06

Coan, James F.

Package making

Methods

Filling preformed receptacle and closing

53384, B65B 304

Patent

active

045863199

ABSTRACT:
A method of easy opening bags, whereby longitudinal forces adapted to be applied at a force location intermediate the bag edges to at least one of the rib and groove elements of the bag tends to slide them relatively, and thereby effects curling of at least one of the rib and groove elements and separation of the elements from that interlock relation due to the resultant component of force in a direction tending to separate the rib and groove elements. Apparatus for this purpose is provided, especially suitable for use with a bag filling machine.

REFERENCES:
patent: 3190049 (1965-06-01), Van Der Meulen
patent: 3699746 (1972-10-01), Titchenal et al.
patent: 3744211 (1973-07-01), Titchenal et al.
patent: 3746057 (1973-07-01), Titchenal
patent: 3751875 (1973-08-01), Membrino
patent: 4162602 (1979-07-01), Achelpohl et al.
patent: 4169345 (1979-10-01), Douwenga
patent: 4333299 (1982-06-01), Hamilton
patent: 4387550 (1983-06-01), Lerner
patent: 4423583 (1984-01-01), Carey
patent: 4490959 (1985-01-01), Lems

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