Apparatus for uniformly applying either liquid or foam compositions to a moving web
US4500039A · kind A · utility
9Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1982 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Oct 20, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An elongated manifold is supplied with either foam or liquid under pressure through a plurality of inlet ports spaced along the manifold. The manifold contacts a curved blade along a line substantially parallel to, and below the elevation of, the crest of a horizontally disposed curved blade. The manifold is provided with outlet means above the line of contact whereby foam or liquid discharged from the manifold builds up behind the blade's crest until it overflows the crest to flow as a uniform film onto a web moving past an edge of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.