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:
Aug. 05, 2008
Filed:
Feb. 14, 2005
Tien-ho Gau, Hsinchu, TW;
Yu-yin Peng, Hsinchu, TW;
Chin-pin Chien, Taipei Hsien, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A piezo-driven micro-droplet jet generator comprises an ejection seat, having an ejection plate with a plurality of ejection holes; a membrane, having a front side facing the ejection seat and a rear side; a piezoelectric plate, placed at the rear side of the membrane, at least partly touching the membrane and, when electric voltage is applied, driving a vibrating movement of the membrane towards the ejection plate; a base plate, at four corners thereof fastened to the ejection seat and to the membrane; and a flow path inside the ejection seat, allowing liquid to be let into a space inside the ejection seat; wherein liquid between the membrane and the ejection plate upon the vibrating movement undergoes pressure, being ejected through the plurality of ejection holes.