Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1998-06-08
1999-11-30
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
220254, 220339, 22912504, 22912514, B65D 574
Patent
active
059927348
ABSTRACT:
The present invention is a hinge for a package closure apparatus. A preferred embodiment of the hinge comprises a landing, a spring face, a push-tab, and an air vent. The landing extends from a base of the closure apparatus into an opening of the closure apparatus. The spring face adjoins the landing at a first junction forming a first flexible joint. The push-tab adjoins the spring face at a second junction forming a second flexible joint. The first flexible joint, the spring face, and the second flexible joint cooperate to enable the push-tab to move relative to the base of the apparatus. The air vent is adapted to facilitate a substantially even flow rate of a product through the opening of the closure apparatus.
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Miller C. Daniel
Robichaud Arthur W.
Tokarski Michael G.
Elkins Gary E.
SIG Combibloc Inc.
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