Two-stage aerator
US5348231A · kind A · utility
55Cited by
11References
14Claims
0Family size
Inventors
Key dates
| Filing date | Oct 5, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Oct 5, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/084
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A two-stage aerator manually operable to provide either a low-volume spray or a high-volume stream. A valve poppet maintains the aerator in the selected position so long as water is flowing through the aerator. The low-volume spray position is the default, and the aerator includes a resilient diaphragm to return the aerator to this position whenever water flow is terminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.