Cleaning attachment for fluid dispenser nozzles and fluid dispensers using same
US6957781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2003 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Dec 25, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B2210/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A nozzle attachment for removing residual material retained on the dispensing nozzle of a fluid dispenser, having a retainer adapted to releasably attach the nozzle attachment to a dispensing nozzle, and a pair of hollow-bodied nozzle attachment components that define, when nested together, an intervening space useful as a gas passageway for pressurized gaseous fluid introduced and directed to a discharge opening at a lower axial end of the nested nozzle attachment components. The gas passageway is adapted to emit gas introduced into the gas passageway as a gas stream in a manner effective to remove residual material clinging to the nozzle. Dispensers using the nozzle attachment are presented, including one using a truncated valve head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.