Selective venting sprayer
US6068203A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1999 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Feb 4, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/083
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A selective venting spray assembly is disclosed which includes a sprayer for dispersing a spray of liquid and a spray shaping air flow. An aircap is attached to the sprayer for atomizing and directing the spray. The aircap includes one or more spray shaping passages for receiving the airflow and directing it against the spray to alter the shape of the spray. A flow channel assembly is provided to fluidly connect the aircap to the sprayer. The flow channel assembly includes a flow passage selectively switchable between a first position where airflow is admitted from the sprayer to the spray shaping passage, and a second position where the airflow is diverted to a vent, to produce a non-shaped spray without creating damaging back pressure within the sprayer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.