Vent system for ink jet pen having internal pressure regulator
US6394593B1 · kind B1 · utility
13Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2001 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | May 30, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a vent system for an ink jet pen of the type having an internal pressure regulator. The vent system provides air flow communication between the exterior of the ink jet pen and an interior chamber associated with the pressure regulator while substantially inhibiting the flow of water vapor out of chamber to the exterior of the pen. The vent system includes an elongate flow path defined adjacent the exterior of the pen, the flow path having a first end in flow communication with the chamber and a second end in flow communication with the exterior of the pen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.