Patent ID: 7669788

Claim:
A fluid injector for treating a surface of a flat display panel, comprising: a case provided with a cavity for receiving fluid, the case and cavity being formed along a longitudinal direction; a pair of nozzle guiders coupled to the case and disposed facing each other; a plurality of gap-adjusting plates disposed between the nozzle guiders to adjust a gap between the nozzle guiders; a nozzle portion formed by the nozzle guiders; a plurality of passages defined by the gap adjusting plates and the nozzle guiders, the plurality of passages communicating with the cavity of the case and allowing the fluid to be directed to the nozzle portion; a pressure control cavity disposed between the nozzle guiders near the nozzle portion to spray the fluid through the nozzle portion at a uniform pressure; and a couple device fixedly coupling each of the nozzle guiders to the gap-adjusting plates.