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:
Oct. 08, 2019
Filed:
Mar. 25, 2019
Taiyuan University of Technology, Taiyuan Shi, Shanxi Sheng, CN;
Shengbo Sang, Shanxi Sheng, CN;
Zhongyun Yuan, Shanxi Sheng, CN;
Qiang Zhang, Shanxi Sheng, CN;
Qianqian Duan, Shanxi Sheng, CN;
Jianlong Ji, Shanxi Sheng, CN;
Yixia Zhang, Shanxi Sheng, CN;
Bo Zhang, Shanxi Sheng, CN;
Wendong Zhang, Shanxi Sheng, CN;
TAIYUAN UNIVERSITY OF TECHNOLOGY, Taiyuan Shi, Shanxi Sheng, CN;
Abstract
A printhead device is provided. The printhead device includes a cell tube, a cell tube rubber plug covering the cell tube, a connector arranged at an end of the cell tube, and a fixing knob fixed to the connector and communicating with a printing nozzle through a bottom liquid tube. A fixing clip is provided on the upper part of the cell tube, and a stepping motor box is provided on the upper end of the fixing clip. An air valve box is arranged on the upper side of the stepping motor box, and a rotary air valve is provided in the air valve box. The rotary air valve communicates with the inner cavity of the cell tube through an internal vent tube, and with an air valve straight tube or an air valve gooseneck tube.