Multi-walled panels

Details Multi-walled panels Multi-walled panels

1993-12-10

1996-04-09

Pollard, Steven M.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220444, 220645, 73 492, B65D 2500

Patent

active

055053297

ABSTRACT:
Multi-walled panel-like structure having an upper and lower wall integrally bonded to support ribs located therein between with closed cell foam being placed in the interstitial spaces between the walls and ribs. Improved strength is provided by this apparatus and method of construction. The invention is particularly suited for retrofitting single wall tanks and tank bottoms to be double walled tanks and tank bottoms.

REFERENCES:
patent: 5143244 (1992-09-01), Kauffman
patent: 5232119 (1993-08-01), Kauffman
patent: 5308423 (1994-05-01), Kauffman
patent: 5368670 (1994-11-01), Kauffman

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