Ink containment system including a plural-walled bag formed of inner and outer film layers
US6158853A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1997 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Jun 5, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invented containment system provides a double-walled, or nested bag, configuration in which ink or liquid toner is contained within the sealed inner bag and the inner bag is contained, in turn, within a sealed outer bag. An inlet/outlet port is provided for the introduction and extraction of ink into and out of the interior volume formed by the nested bags. In one embodiment, the sidewalls are formed separately and their peripheral edges are staked to either side of an annular frame member formed integrally with the inlet/outlet port. In another embodiment, the sidewalls are sealingly joined directly to one another along their peripheries. Preferably, the inner bag or liner is a flexible mono polymer film or co-extrusion thereof that is ink-impermeable and the outer bag or liner is a flexible laminar structure including metallized polymer layers adhered to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.