Process and apparatus for filtering spray coating particles from air
US4530274A · kind A · utility
7Cited by
10References
5Claims
0Family size
Inventors
Key dates
| Filing date | Apr 23, 1982 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Apr 23, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spray booth has a front movable wall composed of two layers of movable, flexible filter material supplied from a single continuous supply roll located adjacent the floor of the booth. The layers of filter material are composed of a mat of closely-spaced non-woven extruded polypropylene fibers forming a multiplicity of cells and randomly positioned non-woven polypropylene fibers extending from the mat into each said cell to provide sub-cells of sub-micron size openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.