Selective wetting using a micromist of particles
US3959798A · kind A · utility
26Cited by
4References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Dec 31, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G19/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Selective or controlled "wetting" of particles to the surface of a substrate or medium is effected by ultrasonically generating a micromist of small nebulized magnetic particles, typically of micron or submicron size. In the absence of a magnetic field, exposure of the surface of the substrate or medium to the micromist fails to produce any "wetting" of the particles to the surface. In the presence of a magnetic field, however, the particles are caused to locally "wet" the surface in accordance with the field pattern. Use of a micromist of magnetic ink particles for printing, typing and copying applications is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.