The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 2021
Filed:
Jun. 22, 2016
Agency for Science, Technology and Research, Singapore, SG;
Meysam Sharifzadeh Mirshekarloo, Singapore, SG;
Kui Yao, Singapore, SG;
Szu Cheng Lai, Singapore, SG;
Chee Kiang Ivan Tan, Singapore, SG;
Lei Zhang, Singapore, SG;
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, Singapore, SG;
Abstract
A fluid jet dispenser using at least two multilayer piezoelectric actuators is provided. The fluid jet dispenser includes a dispensing head and an electrical driver. The dispensing head includes at least two d-mode multilayer piezoelectric actuators, a displacement magnifying element mechanically coupled to the d-mode multilayer piezoelectric actuators, a piston, and a nozzle. More preferably, the two d-mode multilayer piezoelectric actuators operate in an anti-phase condition. The electrical driver is electrically coupled to the d-mode multilayer piezoelectric actuators for displacing the actuators in directions substantially perpendicular to polarization of piezoelectric layers in the d-mode multilayer piezoelectric actuators in response to charging and discharging of the actuators by the electrical driver, to generate a fast movement of the piston to jet a pressurized fluid out of the nozzle of the dispensing head.