Spray nozzle assembly
US6394366B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Nov 28, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/3447
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spray nozzle of a fire protection system is provided for discharging a hollow cone spray pattern. The nozzle generally includes a hollow, elongated body and an integral core subassembly which may be preassembled. The integral subassembly configuration simplifies the subsequent assembly, disassembly or service of the overall nozzle in the field. In an exemplary embodiment, the subassembly includes a unitary core holder having a plate portion and an annular wall portion, with a discharge orifice disposed centrally in the plate portion. Additionally, the subassembly includes a disc-shaped core having a plurality of sloped passages. The core and core holder are cooperatively shaped to define generally cylindrical a whirl chamber in a space between a downstream surface of the core and the plate portion of the core holder. For fixing the core and core holder together, the core holder includes a lip which projects around the annular wall, the lip being deformed by a peening operation to extend partially over an upstream surface of the core. The integral, preassembled core subassembly is mounted to the discharge end of the nozzle body. When fluid is delivered to the nozzle, the fluid pas…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.