US 6,394,593 B1
Vent system for ink jet pen having internal pressure regulatorGeneral
US 6,394,593 B1
Vent system for ink jet pen having internal pressure regulator
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Anh T. N. Vo
Art Unit:
2861 Printing/Measuring and Testing
Agent:
Inventors:
Steven Robert Komplin; James Harold Powers
Assignee:
Priority:
05/30/01
Filed:
05/30/01
Granted:
05/28/02
Expiration:
05/30/21
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.