Self-closing valve for sanitary installations
US4819909A · kind A · utility
11Cited by
41References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1988 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Jul 28, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K21/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-closing valve, having means to discharge a predetermined volume of water for each cycle of operation, is disclosed. The valve includes the arrangement of timing means which determines the elapsed time for its operational cycle, a one-way valve means to expel air from the metering chamber during the actuating cycle of the valve, and air metering means which replaces air entering the mixing chamber at a constant uniform rate, all of which cooperate with the valving means to discharge a predetermined volume of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.