Toilet fill valve with improved noise abatement
US6354326B1 · kind B1 · utility
6Cited by
16References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1998 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Sep 14, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7468
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A toilet fill valve includes a housing defining a water fill passage and a water inlet. A valve disposed in the passage divides the housing into a upstream portion and a downstream portion. A pressure regulator vertically oriented in the downstream portion of the housing has a spiral configuration providing a significant pressure drop in the water flow. Noise abatement is enhanced by pressure regulation which reduces the flow velocity, flow directors which inhibit turbulence, and energy drops provided in a downspout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.