Fire-control sprinkler system
US6601604B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 19, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jun 19, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/85938
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention provides for a valve system for use in fire suppression systems that provides pressure relief, pressure testing, and drain/test fluid flow capability. The valve system consists of a valve body with an attached riser. Adjustably attached to the riser is a rotary handle for raising and lowering a spring loaded valve stem. A blocking plug is provided for attachment to the handle which operates to block the movement of the valve stem during pressure testing of the fire suppression system. A tension disk is adjustably attached to the inside of the riser to manually adjust the spring tension. In addition, a means is provided for preventing system fluid from contacting the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.