Test assembly for water-flow alarms
US4729403A · kind A · utility
31Cited by
1References
1Claims
0Family size
Inventor
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8359
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A test assembly for water-flow alarms having a housing made up of two sections. One section includes a control valve, and the other section a viewing chamber. The control valve is capable of a passing water therethrough at two distinct flow rates, one of which being equivalent to the flow rate passing through the orifice of a sprinkler. The viewing chamber contains a uniquely designed sight module therein through which the flow of water can be viewed. By incorporating the test assembly within a sprinkler system it is possible to reliably test a water-flow alarm without activating the sprinkler within the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.