Automatic variable-demand flow regulator
US5823226A · kind A · utility
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10Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 10, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Sep 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87378
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A variable-demand flow regulator regulates water flow into a building based on variable water supply and variable demand pressures. When water demand increases downstream of the variable-demand flow regulator, the water pressure decreases on the downstream side of the piston valve and a piston of a piston valve moves in the downstream direction. This results in an increased number of access holes being exposed to water flow, thus allowing a higher flow of water when water demand increases. An adjustable bleeder valve controls the flow characteristics of the regulator by affecting the movement of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.