Application of fluidized material to a substrate using intermittent charges of compressed air
US5360516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1992 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Nov 12, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C5/0233
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to the treatment of substrates with fluidized material in repetitive patterns during application cycles. The treatment patterns made with this invention can be altered by changing machine operating parameters. The patterns of fluidized material are applied to substrates using intermittent charges of compressed air. The intermittent charges of compressed air pass through a venturi slot which creates a region of low pressure in the charges adjacent to a region where the fluidized material accumulates between application cycles. This region of low pressure helps to entrain the fluidized material in the charge of compressed air. After the fluidized material is entrained in the charge of compressed air, the charge deposits the fluidized material on the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.