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:
Jun. 23, 2015
Filed:
Jul. 03, 2012
Chien-shih Hsu, Taoyuan, TW;
Ji-huang Chen, Taoyuan, TW;
Zuei-chown Jou, Taoyuan, TW;
Chi-cheng Lin, Taoyuan, TW;
Chien-Shih Hsu, Taoyuan, TW;
Ji-Huang Chen, Taoyuan, TW;
Zuei-Chown Jou, Taoyuan, TW;
Chi-Cheng Lin, Taoyuan, TW;
DARFON ELECTRONICS CORP., Taoyuan, TW;
BanQ Corporation, Taipei, TW;
Abstract
A keyswitch includes a casing, a key cap and a support device rotatably disposed between the key cap and the casing. One of the casing and the key cap has a first magnetic area and the support device has a second magnetic area corresponding to the first magnetic area. When the key cap is not pressed, a magnetic attraction force between the first and second magnetic areas keeps the key cap at a non-pressed position. When the key cap is pressed by an external force such that the second magnetic area moves away from the first magnetic area, the key cap moves from the non-pressed position toward the pressed position. When the external force is removed, the second magnetic area moves toward the first magnetic area due to the magnetic attraction force such that the key cap moves from the pressed position toward the non-pressed position.