Fluid supply tank ventilation for a micro-fluid ejection head

  • US 7,938,523 B2
  • Filed: 06/13/2007
  • Issued: 05/10/2011
  • Est. Priority Date: 06/13/2007
  • Status: Active Grant
First Claim
Patent Images

1. A fluid supply tank for a micro-fluid ejection head, the fluid supply tank comprising:

  • a body portion for holding a fluid to be ejected, the body portion having a fluid exit port on an exit end thereof and a cover on an opposing end thereof of the body portion, the cover having an opening in fluid communication with atmosphere;

    an internal vent conduit disposed between the exit end and the cover for removing air adjacent to the fluid exit port and releasing the air through the cover to said atmosphere; and

    an air space in the fluid exit port wherein the internal vent conduit is in air flow communication with the air space and the cover.

View all claims

    Thank you for your feedback