Two-stage toilet flush valve assembly
US4504984A · kind A · utility
19Cited by
8References
5Claims
0Family size
Inventor
Key dates
| Filing date | Nov 13, 1981 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Nov 13, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D1/145
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Pivoted flap valves are positioned at different angles by valve seats formed on a flush valve body on opposite sides of a vertical axis extending through a lower outlet section of the valve body. Flexible actuating elements depending at different angles from the flush lever, control opening of the flap valves in a one- or two-stage flush operation in response to displacement of the flush lever in one direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.