Toilet flushing device with water saving features
US5555573A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1995 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Apr 21, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A toilet flushing mechanism includes a dual flush device for effecting both a short flush cycle and a long flush cycle in a toilet tank including a flush valve actuated by an actuation arm. A cam operable by a handle is rotatably supported adjacent the actuation arm. When rotated in a first direction, the cam acts to press against and pivot the actuation arm to effect the long flush. When rotated in the second direction, the cam acts to press against and pivot said actuation arm to effect the short flush. A lever is pivotably supported with respect to the actuation arm and pivots between a first position out of blocking contact with the actuation arm and a second position where the lever blocks return of the actuation arm for a predetermined period of time when the cam is rotated in the second direction. A float is coupled to the lever for determining the predetermined period of time. The float acts to pivot the lever into the second position when the cam is rotated in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.