Spray nozzle for high viscosity spray applications with uniform spray distribution
US10493470B2 · kind B2 · utility
Inventors
Key dates
| Filing date | May 10, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Jan 18, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/753
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A nozzle and spray dispenser for generating a uniform substantially flat fan spray pattern when spraying high viscosity fluids (i.e., oils, lotions, cleaning liquids, shear-thinning liquids and gels and similar Newtonian and non-Newtonian fluids having viscosities of 10-100 cP) is configured with an exit orifice 134 defining multiple lip segments 150A, 150B, 150C. Cup-shaped nozzle member 100 has a cylindrical side wall 102 surrounding a central longitudinal axis and has a circular closed end wall with at least one exit aperture passing through the end wall 112. At least one enhanced exit orifice structure is formed in an inner surface of the end wall, and includes two to five lip segments of selected width defining edges at the orifice 134, where each edge segment is defined at the distal edge of a separate and distinct interior wall segment 160A, 160B, 160C which has a selected wall convergence angle β.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.