Method and apparatus for recording with writing fluids and drop projection means therefor
US3946398A · kind A · utility
530Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1970 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Jun 29, 1990 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14379
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A recording apparatus and method is disclosed which includes a writing fluid source feeding a drop projection means which ejects a series of droplets of writing fluid from a nozzle in a discontinuous stream with sufficient energy to traverse a substantially straight trajectory to a recording medium. The volume of each droplet is individually controlled by electrical pulses applied to the projection means from an electronic driver. A plurality of such projection means may be employed and connected to control means whereby to print or form predetermined graphical intelligence patterns on a record medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.