Manhole debris-catching system
US6613228B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jan 17, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F5/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A debris-catching system for preventing debris from falling into the pipe opening at the bottom of a manhole catch basin. The debris-catcher comprises two semi-circular halves hinged together such that the two halves may be folded and inserted into a manhole opening. The debris-catcher comprises aligned apertures that allow it to be hooked and lowered into a manhole. The two halves are opened up to form a circular blocker which sets on the manhole bottom flat base. The debris-catcher allows normal effluent flow through the manhole while in place. The debris-catcher floats and will do so during an overflow condition. Further, the debris-catcher will resume its protective function after an overflow condition has subsided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.