Ink jet head having curved ink
US4588998A · kind A · utility
41Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1984 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Jul 26, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet head for compressing ink in an ink chamber to eject a drop of the ink from a nozzle. Ink compressing means for compressing the ink in the ink chamber by expanding and contracting in response to a voltage applied thereto is made of a piezoelectric high molecular substance. The ink compressing means comprises a single thin film of polyvinylidene fluoride (PVDF) or two PVDF films bonded together in a bimorph structure. Multiple nozzles are arranged in a predetermined direction. The PVDF film expands and contracts in a direction parallel to the direction of arrangement of the multiple nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.