Ink jet printing cartridge with circuit element protection system
US5422667A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1992 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Dec 2, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17526
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an ink jet cartridge the platform structure is formed in part by an extension of the bottom of the housing and a forward platform surface intersecting the extension and extending generally perpendicularly thereto. A discharge plate is formed on the platform surface. The discharge plate has one or more rows of ink discharge ports in fluid communication with the ink reservoir. A ink propulsion element is arranged on each of the ink discharge ports. A carrier strip is mounted on the housing. The strip has a forward portion mounted over the platform surface, a rearward portion mounted over the bottom of the housing, and a central portion extending over the intersection of the housing top and the platform surface. A plurality of electrodes are formed on the rearward portion of the carrier strip in an electrode pattern. A plurality of electrically conductive paths are formed on the carrier strip. Each conductive path has a forward end in electrical contact with one of the ink propulsion elements and a rearward end in electrical contact with one of the electrodes. A layer of electrically insulating, heat dissipating, corrosion and oxidation resistant sealant material is injected, place…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.