Vacuum drainage system for unclogging a clogged drain, drain clean-out device therefor, and method of unclogging a clogged drain
US8418274B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Nov 1, 2007 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Nov 7, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/304
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vacuum drainage system for unclogging a clogged drain comprises a source of vacuum, a hose having a proximal end portion and a distal end portion, the proximal end portion of the hose being connected to the source of vacuum when the system is in use, and a drain clean-out device being received on the distal end portion of the hose when the system is in use. The drain clean-out device comprises a hollow tubular structure, a sealing member receiving portion located on the exterior surface of the hollow tubular structure at the first end portion of the structure, and a sealing member mountable on the sealing member receiving portion for creating a seal between the sealing member and the exterior service of the structure and between the sealing member and a clogged drain when the hollow tubular structure, with the sealing member mounted thereon, is positioned over a clogged drain, with the sealing member being in contact with an entrance to the drain or with a surface surrounding the entrance to the drain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.