Drain stopper and strainer
US11519161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2019 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Apr 4, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/232
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drain stopper includes a cap, a seal and a strainer engaged with the cap, and a gripping element engaged with the strainer. The gripping element is resilient and has a generally tubular shape with longitudinal notches, which give it a segmented annular shape. A person grips and squeezes the gripping element to insert the stopper/strainer into a drain pipe, after which the gripping element expands and grips an inside wall of the drain pipe. The person pushes downwardly on the cap to place the stopper/strainer in a closed position and pulls up on the cap for an open position. Another drain stopper includes a cap, a seal, a push-push mechanism, a strainer engaged with the mechanism, and a flange or prongs that rest on a drain flange for holding and supporting the drain stopper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.