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:
Jul. 23, 2013
Filed:
Jun. 13, 2011
Ming-fu Yen, Taipei, TW;
Ming-Fu Yen, Taipei, TW;
Silitek Electronic (Guangshou), Co., Ltd., Guangzhou, CN;
Lite-On Technology Corp., Taipei, TW;
Abstract
A key device includes a plate body, a positioning seat having a through hole, a circuit unit mounted on the plate body, a keycap disposed above the circuit unit, and an elastic member disposed between the circuit unit and the keycap. The circuit unit includes a multi-layered structure, and a resilient tongue provided on one layer of the multi-layered structure and having a free end proximate to the through hole. A support rod is connected to and supports the keycap on the substrate, and has a lower end extending through the through hole. The free end of the resilient tongue extends beneath and abuts against the lower end of the support rod, and pushes upwardly the lower end of the support rod to abut against an edge confining the through hole.