Inkjet nozzle device with symmetrically constrained bubble formation
AssigneeMemjet Technology Limited
InventorAngus John North
Life of this patent
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Abstract
An inkjet nozzle device for symmetrically constrained bubble formation includes: a firing chamber having and an end wall, opposite sidewalls and a nozzle aperture defined in a roof thereof; a baffle plate positioned between the sidewalls of the firing chamber, such that a pair of firing chamber entrances are defined between side edges of the baffle plate and the sidewalls; and an elongate heating element bonded to a floor of the firing chamber, the heater element extending longitudinally between the baffle plate and the end wall. The baffle plate is wider than the heater element. Further, a centroid of the heater element coincides with a midpoint between the baffle plate and the end wall.
Claims13
An inkjet nozzle device comprising:
- a firing chamber having an end wall, opposite sidewalls and a nozzle aperture defined in a roof thereof;
- a baffle plate positioned between the sidewalls of the firing chamber, such that a pair of firing chamber entrances are defined between side edges of the baffle plate and the sidewalls;
- an elongate heating element bonded to a floor of the firing chamber, the heater element extending longitudinally between the baffle plate and the end wall,
- wherein:
- the baffle plate is wider than the heater element;
- a centroid of the heater element coincides with a midpoint between the baffle plate and the end wall;
- and
- a surface portion of the baffle plate mirrors an opposite surface portion of the end wall.
Dependencies are inferred from the claim text.