Fluent material handling – with receiver or receiver coacting mea – With soil removing – coating – lubricating – sterilizing and/or... – Drip collection
Patent
1986-06-17
1987-11-17
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
With soil removing, coating, lubricating, sterilizing and/or...
Drip collection
52 20, 137314, 137371, 141 98, 141286, 404 26, 220221, F16L 500, B15B 306
Patent
active
047067187
ABSTRACT:
A containment manhole is disclosed which includes a hollow body having a closed bottom and an open top. A concentric opening is provided in the bottom to receive an underground tank fill therethrough and a circular, resilient seal is provided to seal the junction between the tank fill and the manhole bottom. Optionally, a drain valve may be provided in the manhole bottom to lead any spillage directly back to the tank fill. The manhole terminates upwardly in the machined ring and includes a gasketed junction with the ring. The ring includes an upper shoulder upon which the cover peripheral lip can rest and a lower shoulder of size to enable the cover peripheral edges to rest. An O-ring seal is provided intermediate the cover and the top ring to provide a first sealed junction and a circular gasket is affixed on the lower ring edge to provide a second seal when the cover is in position.
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Cusick Ernest G.
Recla Henry J.
Universal Valve Co. Inc.
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