Flushing mechanism
US8332970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2010 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Mar 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7837
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flushing mechanism (100) includes a housing (1), an upper cover (6) on the housing (1), a sleeve (3), a first piston (4), a first piston sealed module (4-3), a first piston loading spring (5), a second piston (8) and a second piston loading spring (9). Wherein a pressure-relief and/or ejection-proof part is provided in the housing (1), the second piston sealed module (8-3, 8-4) are respectively provided surround the periphery of the bottom end and the central hole of the second piston (8). The bottom end of the second piston (8), the second piston sealed module (8-3, 8-4) and the lower end of the housing (1) define an exterior lower cavity (8-5) and an interior lower cavity (8-6) used for cooperating with the second piston loading spring (9) in course of drainage, sequentially the second piston (8) is moved upward and the outlet is opened. A toilet bowl employing the flushing mechanism can reduce the flushing water consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.