Heavy duty trench frame and grate assembly

Details Heavy duty trench frame and grate assembly Heavy duty trench frame and grate assembly

2007-09-14

2009-12-29

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

C404S004000, C404S002000

Reexamination Certificate

active

07637695

ABSTRACT:
A frame for retaining a grate over a trench for directing storm water to subterranean basins includes a frame that is embedded in the concrete surrounding the trench. The frame includes a support member, including a vertical support that is sized and dimensioned to abut the wall of the trench, and a horizontal flange that is cantilevered over the trench to receive a grate member. The frame further includes a reinforcement member that runs parallel to the length of the support member, and a plurality of rib members that couple the reinforcement member to the support member. The reinforcement member and rib members are embedded in the pavement adjacent the trench, to provide a back structure for reinforcing the support of the grate.

REFERENCES:
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patent: 5256000 (1993-10-01), Beamer
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patent: 6942419 (2005-09-01), Knak et al.
patent: 7048466 (2006-05-01), Benesteau et al.
patent: 2209783 (1989-05-01), None

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