Drain grate with adjustable weirs

Details Drain grate with adjustable weirs Drain grate with adjustable weirs

1981-06-08

1983-08-23

Spear, Jr., Frank A.

Liquid purification or separation

Structural installation

Grated inlet surface drain

E03F 514

Patent

active

044002726

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.

REFERENCES:
patent: 1674347 (1928-06-01), Silverman
patent: 1973321 (1934-09-01), Schultz
patent: 2666493 (1954-01-01), Gordon
patent: 2837212 (1958-06-01), Schmid
patent: 3357561 (1967-12-01), Schmid et al.
patent: 3469698 (1969-09-01), Blendermann
patent: 3469699 (1969-09-01), Blendermann et al.
patent: 3529723 (1970-09-01), Hagedorn
patent: 3884809 (1975-05-01), Logsdon

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