High pressure fluid spray nozzle incorporating a flow controlled switching valve
US9395001B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Nov 25, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6011
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A nozzle assembly comprises a hollow nozzle body having a central bore and a plurality of ports extending through the body from the central bore; and a switching valve cartridge disposed in the central bore that directs fluid flow to ports upon application of fluid flow above a predetermined threshold to the inlet and direct fluid flow to different ports upon fluid flow having subsequently dropped below the predetermined threshold and then exceeding the predetermined threshold. The cartridge comprises a cylindrical cartridge case having a front portion and a cup shaped rear portion, a cylindrical poppet slidably disposed within the cup shaped rear portion of the cartridge case, and a biasing member within the cartridge case between the front portion of the case and the poppet urging the poppet away from the front portion of the cartridge case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.