B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
101/96.0205, 349
B41J 2/045 (2006.01) B41J 2/14 (2006.01) H01L 41/09 (2006.01)
Patent
CA 1311964
Shear Mode Transducer for Ink Jet Systems Abstract In the shear mode piezoelectric transducer for an ink jet system described in the specification, a piezoelectric plate (17) is polarized parallel to the plane of the plate and in directions extending away from the center of the pressure chamber with which the transducer is used, and electrodes (20,21) mounted on opposite surfaces of the plate impose electric fields orthogonal to the direction of polarization. The resulting shear motion of the transducer decreases the volume of the pressure chamber (11), ejecting a drop of ink from an orifice (15) communicating with the pressure chamber. The piezoelectric plate (17) used in the transducer is prepared by imposing electric fields within the plate in the direction parallel to the plane of the plate between electrodes mounted on opposite sides of the plate in the central region of the pressure chamber and electrodes mounted on oppo- site sides of the plate in the peripheral regions of the pressure chamber. (Fig. 1)
592138
Fischbeck Kenneth H.
Hoisington Paul A.
Dimatix Inc.
Gowling Lafleur Henderson Llp
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