B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 88/12 (2006.01) B60P 3/22 (2006.01) B61D 5/00 (2006.01) F17C 13/04 (2006.01) F17C 13/12 (2006.01)
Patent
CA 2053200
A fluid containment apparatus including a fluid tank, a well wall and a closure system. The tank has a tank shell, which defines at least in part a fluid containment compartment and has a tank shell opening therethrough. The well wall is secured to the tank shell, positioned at the shell opening, recessed into the fluid containment compartment and defines at least in part a recessed well. The well wall has a well wall end and a well wall end opening. The closure system selectively opens and class the well wall end opening. The closure system includes a well head connected to the well wall gener- ally at the well wall end, a sealing gasket, an elliptical manway cover having a plurality of drilled and tapped blind holes, a separate fasten- ing ring having a plurality of circumferential drilled through-holes and a clamp for clamping the manway cover and the fastening ring together and sandwiching the sealing gasket on the well head. The clamp includes a plurality of bolts boltable through the through-holes and into the blind holes.
Zink Donald G.
Zink Donald Lawrence
Montana Sulphur & Chemical Company
Sim & Mcburney
LandOfFree
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