Liquid purification or separation – Structural installation – Grated inlet surface drain
Patent
1983-06-27
1985-06-25
Spear, Frank
Liquid purification or separation
Structural installation
Grated inlet surface drain
210166, E03F 506
Patent
active
045252734
ABSTRACT:
A self supporting grate for a drain structure can be improved by including as part of the grate a mounting base sized and shaped to attach the grate to the drain structure. At least a portion of the grate is formed as a generally upwardly projecting wall attaching to and extending from the base. The wall includes a plurality of weirs capable of forming a variable flow fluid pathway to the interior of the grate for fluid disposal by the drain structure. The weirs are constructed so as to allow fluid at a first fluid level on the wall as measured from the base to flow at a first rate from the exterior of the grate into the interior grate and fluid at a second fluid level likewise measured along the wall from the base to flow at a second rate into the interior of the grate, with the second rate being different from the first rate. A guard lip is located on the mounting base peripheral to the grate to retard the flow of solid material over the guard lip and to prevent clogging of the grate. Holes may be provided in the base to allow smaller matter to pass through.
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Boswell K. H.
O'Brian Edward D.
Spear Frank
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