Foam in bag packaging system
AssigneeSealed Air Corporation
InventorsLaurence Burst Sperry, Anthony Orkin Davlin, Kerry Michael McKinley, George Teofilius Bertram
Life of this patent
Estimating the term…
Abstract
An apparatus is disclosed for enhancing the mixing of foam precursors in foam-in-bag precursor systems, to thereby enhance the quality of the resulting foam. The apparatus comprises a heated chamber for storing bags containing the precursors in separate compartments, an opening for dispensing the heated bags, and mechanical agitators for externally agitating the bag containing the separated foam-forming precursors to mix the precursors and form foam. Also, a foam cushion packaging precursor is disclosed and comprises such a heated bag.
Claims12
A foam cushion packaging precursor system comprising:
- a bag formed of two sheets of flexible sheet material closed on all side edges;
- and
- two foam precursor compositions stored separately in said bag, with the two foam precursor compositions collectively occupying a portion only of the volume of the bag;
- and
- said separated foam precursor compositions being warmed so as to have respective temperatures above ambient temperature and between about 80° F. and 160° F. (27° C.-71° C.).
A foam cushion packaging precursor system comprising:
- a bag formed of two sheets of flexible sheet material closed on all side edges;
- two foam precursor compositions stored separately in said bag, with the two foam precursor compositions collectively occupying a portion only of the volume of the bag;
- said separated foam precursor compositions being warmed so as to have respective temperatures above ambient temperature and between about 80° F. and 160° F. (27° C.-71° C.), and
- venting means for permitting gases to vent to or from the interior of the bag as the foam precursors form foam while substantially preventing the foam or foam precursors from escaping.
Dependencies are inferred from the claim text.