B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
B41J 29/38 (2006.01) B41J 2/045 (2006.01)
Patent
CA 2283665
An impulse fluid jet apparatus having pulse generating circuitry for an impulse jet. The circuitry generates driving a longer pulse for exciting the resonant frequency of the jet and a shorter pulse for exciting a higher harmonic frequency of the jet. The longer pulse changes the state of energization of the transducer in the jet to eject a droplet of fluid and the shorter pulse changes the state of energization so as to break off the tail of the droplet.
La présente invention concerne un appareil à jet de fluide impulsionnel comportant un générateur d'impulsions qui permet de produire un jet impulsionnel. Ce circuit, lorsqu'il est sous commande, produit d'une part une impulsion longue donnant la fréquence de jet, et d'autre part et une impulsion courte donnant fréquence harmonique supérieure du jet. L'impulsion longue modifie l'état d'excitation du transducteur dans le jet de façon à expulser une gouttelette de fluide, l'impulsion la plus courte modifiant l'état d'excitation de sorte que la queue de la gouttelette se détache.
Miller Norma J.
Rogers Robert L.
Stango Christopher M.
Tamarin Charles S.
Finlayson & Singlehurst
Trident International Inc.
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