Toilet flushing assembly and sequence
US9045888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2013 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Oct 22, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D11/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A toilet has an electronic flush assembly operable in either a short or long flush sequence selectable by a user. The long flush sequence includes a pre-rinse cycle and a rinse cycle in which the a supply valve and a flush valve are both opened and closed twice, once each first during the pre-rinse cycle and again during a subsequent rinse cycle. The rim supply valve and the flush valve are opened during the pre-rinse and rinse cycles but are closed at the start and end of each cycle. An electronic control controls operation of the valves as well as water supply control components. Level sensors can also be included to provide feedback to the controller, for example, to prevent overflow conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.