Filter mechanism for diaphragm flush valve
US6182689A · kind A · utility
62Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Jul 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8122
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A diaphragm assembly for use in a diaphragm type toilet room flush valve includes a diaphragm formed of a flexible material and adapted to separate an inlet and outlet of the flush valve. There is a bypass orifice in the diaphragm. A filter assembly is positioned on the flush valve inlet side of the diaphragm and upstream from the bypass orifice. The filter assembly includes a peripherally extending screen spaced from the underside of the diaphragm with the screen being secured to the diaphragm assembly about an inner peripheral portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.