Dry sprinkler
US8469112B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2010 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jul 13, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C37/14
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A dry sprinkler for a fire protection system. The preferred dry sprinkler has a metallic disc annulus positionable within a passageway to skew a central axis of a face of the metallic disc annulus with respect to a longitudinal axis of the dry sprinkler so that an expected minimum flow rate based on a rated discharge coefficient is provided. The dry sprinkler operates to provide an expected flow rate over a range of start pressures. The expected flow rate is based on a K-factor rating. The dry sprinkler provides an acceptable level of fluid flow rate from the expected flow rate based on the K-factor for a range of start pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.