Trench grate

Details Trench grate Trench grate

1989-09-26

1991-06-18

Novosad, Stephen J.

Road structure, process, or apparatus

Drain or gutter

Street or curb inlet for surface drainage

521695, 52668, 210163, 404 25, E01C 1122, E04C 242

Patent

active

050245503

ABSTRACT:
A trench grate includes angular frame members having a number of spaced apart rectangular openings along a downwardly extending leg to receive L-shaped tabbed ends of cross members located transversely between the two angular frame members. The portion of the L-shaped tabbed member extending through the opening in the downwardly projecting leg is welded to an outer face of the downwardly extending leg to form an ingegral unit. The trench grate is a single piece unit and rests on the lip surface of a subterranean drainage structure.

REFERENCES:
patent: 1426736 (1922-08-01), Hess
patent: 1428230 (1922-09-01), Hess
patent: 2031779 (1936-02-01), Ladd
patent: 2084118 (1937-06-01), Zabriskie
patent: 2396735 (1946-03-01), Leigh

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