Level sensor for ink bag
US4935751A · kind A · utility
52Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Sep 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17566
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink device (1) having means for determining the amount of ink remaining in an ink bag comprises a rigid, rectangular box (3) which has a window (29) in the top (13), a collapsible ink bag (23) in the container, one side of the ink bag being secured (33) to the corresponding side (9) of the container and the opposite side of the ink bag having a rigid plate or strip (19) secured to its lower half so that the top edge (21) of the plate is visible through the window. The container and the ink bag have cooperating means (17, 29) to allow ink (35) to flow into or out of the ink bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.