Piston type drain clearing apparatus
US7062799B2 · kind B2 · utility
1Cited by
2References
9Claims
0Family size
Inventor
Key dates
| Filing date | Feb 4, 2005 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Feb 4, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/308
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for clearing a clog in a pipe that includes a hollow, rigid cylindrical body, the body having a closed end and an open end; a piston disposed in the body for reciprocation therein; a rod attached to the piston and extending through an opening in the closed end of the body; a handle located on an upper portion of the rod; and a seal attached to the open end of the body. In one embodiment, the seal includes at least one flexible flange formed on an external surface thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.