Fluid feed system improvements
US8840039B2 · kind B2 · utility
0Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2009 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Dec 29, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B17/0684
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid spray dispenser (2) having a fluid reservoir (20) for holding a fluid to be dispensed, a spray head (23) for dispensing the fluid and a porous medium (24) through which the fluid passes from the reservoir (20) to the spray head (23). The porous medium (24) has an effective pore size and/or permeability that decreases towards the spray head (23). Means and methods of creating the pore size and/or permeability gradients are discussed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.