Spray head and spraying apparatus
US10159992B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Apr 9, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K24/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spray head includes a spray head base body (2) and a nozzle plate (3). The spray head base body (2) includes at least one liquid channel (4) for providing a liquid flow towards the nozzle plate (3). A drip-stop element (10) is located between the spray head base body (2) and the nozzle plate (3). The drip-stop element (10) includes at least one opening (11) being fluidly coupled with liquid channel (4) for providing a fluid flow into a space (6) between the drip-stop element (10) and the nozzle plate (3). At least a top portion (12) of the drip-stop element (10) is movably mounted within a spray head chamber (5) in order to perform a stroke movement. The top portion (12) is preloaded such that the top portion (12) rests against the nozzle plate (3) without applying any external forces to the top portion (12) and the top portion (12) is lifted off the nozzle plate (3) responsive to a liquid flow being provided through the liquid channel (4) into the space (6) between the top portion (12) and the nozzle plate (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.