Plastic stormwater chamber made from separately molded half chambers

摘要

A molded plastic arch shape cross section stormwater chamber having a corrugated wall comprises separately molded half chambers which are connected by coupling features at a joint at the top of the chamber. Preferably, the half chambers are substantially identical and are made in the same mold. The half chambers may be compactly stored and transported. Near the point of use, the chambers may be assembled.

主权项

1. A molded plastic corrugated chamber for receiving water when buried beneath the surface of the earth, the chamber having a length, an arch shape cross section, opposing lengthwise base flanges, and opposing sidewalls, each sidewall running curvingly upwardly from one of said base flanges to the top of the chamber, and each sidewall comprised of alternating peak corrugations and valley corrugations which run transverse to the chamber length;
the chamber comprised of a first half chamber and a second half chamber, each half chamber comprising one of said base flanges and one of said corrugated sidewalls, each half chamber having an upper end connected to the upper end of the other half chamber to form a lengthwise joint at the top of the chamber; the first half chamber having a coupling feature comprising a plurality of vertical flanges at the upper end of half chamber, each flange running lengthwise along the chamber and across one of the valley corrugations; the second half chamber having a coupling feature comprising a plurality of vertical flanges at the upper end of the half chamber, each flange running lengthwise along the chamber and across one of the valley corrugations; wherein the coupling feature of the first half chamber is abutted with and connected to the coupling feature of the second half chamber to form said lengthwise joint.