Safety valve arrangement for a single lever water tap
US5123437A · kind A · utility
13Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Apr 18, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3331
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety valve arrangement for a single lever water tap includes, disposed coaxially in series in a removable module 18, a first air ventilating valve 20, a second air ventilating valve 21, and a non-return valve 22 coupled to and controlling the second ventilating valve. The non-return valve is disposed in the mixed water outlet passage of the tap such that when it opens in response to a water demand, it automatically closes the second ventilating valve, and vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.