Foam inlet device for liquid tanks
AssigneeHoechst Aktiengesellschaft
InventorAlexander Krimm
Life of this patent
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Abstract
An inlet device especially for introduction of foam into liquid-containing tanks. It comprises a two-part frame with a preferably circular opening. Each of the mutually opposed frame parts are provided with a groove around the circumference of the opening, which receives annular cutters and, if appropriate, adapter rings or blocks.
Claims12
A device for controlling flow of fluid into or out of a tank comprising a frame having a first part and a second part, said first part and said second part having an opening therethrough and securing a sheet therebetween, a first peripheral groove in said first part, a second peripheral groove in said second part and facing said first groove, a first peripheral cutter having a cutting edge in said first groove, a first bore fluidly connecting said opening and said second groove, said cutting edge adapted to cut said sheet peripherally, thereby to permit said fluid to pass through said opening.
Dependencies are inferred from the claim text.