B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
6/182, 190/38, 6
B65D 88/76 (2006.01) B65D 90/50 (2006.01)
Patent
CA 1245466
-9- Double-Wall Underground Tank And Method Of Making ABSTRACT OF THE DISCLOSURE A double-wall tank (10) having inner and outer walls (11a and 11b) bonded to connecting hollow annular ribs (30). Passageway means through the ribs (30) enable leak-detecting liquid (15) to fill the spaces between ribs (30), within ribs (30), and between inner and outer end caps (12a and 12b).
494278
Mance Andrew A.
Pugnale Peter J.
Communications Research Laboratory Independent Administrative
G. Ronald Bell & Associates
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