B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 90/10 (2006.01) E02D 29/14 (2006.01)
Patent
CA 2338462
A method of replacing an outwardly opening manhole cover that provides access to the interior of a tank or the like with an inwardly opening cover that includes the steps of removing the outwardly opening cover from the bolting flange of a tank installed manway and attaching a mounting flange to the manway bolting flange. A pair of hinges are connected to the mounting flange and an inwardly opening cover assembly is rotatably mounted on the hinges. The cover of the assembly is arranged to close and seal against either the mounting flange or the inner rim of the existing manway.
Halferty Daniel J.
Robinson Mark D.
Canadian Stebbins Engineering & Mfg. Co. Limited
Gowling Lafleur Henderson Llp
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