Ink supply container with improved foam retention properties
US5760805A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Jun 24, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink container for an ink printer is disclosed of the type wherein a foam member is seated within the ink container in which ink is drawn by capillary action through an ink outlet port in the container. The interior surface of the compartment of the container which seats the compressed foam has been treated so as to establish two areas of surface finish. A first area, adjacent the face of the container through which the foam is inserted, has a fine surface finish to prevent the foam from rebounding or bulging back through the entrance face following insertion. A second finish, in the more interior portion of the compartment, is relatively coarser and is designed to prevent the foam member from pulling away from interior corners and insures a more even distribution of the foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.