Liquid applicator
US4740799A · kind A · utility
7Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1986 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Mar 7, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K8/22
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Electrostatic spraying of a liquid from an applicator on to a substrate. Of primary importance for spraying ink from hand-held devices or in computer graphic work. The spraying is controlled by variation of a control electrode between an operative and an inoperative state; the control electrode, e.g. a needle, being positioned so as to affect the electrostatic field when activated and prevent spraying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.