Device for preventing water hammer while regulating water pressure
US5038823A · kind A · utility
4Cited by
4References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1989 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Nov 28, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87684
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Device for preventing water hammer while regulating water pressure includes valve element biasing means which substantially consists of a pressure adjusting spring with a small spring constant and a water hammer preventing spring with a large spring constant which are disposed in series in a valve casing. The valve element biasing means is capable of varying the opening area of a communicating passage between an upstream passage and a downstream passage to as to adjust the pressure in the communicating passage while preventing the occurrence of water hammer in piping water supply equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.