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. 01, 2010
Filed:
May. 22, 2007
Chin-hung Lin, Taipei County, TW;
Hsien-tsan Chang, Pingtung County, TW;
Chao-lung Chang, Miaoli County, TW;
Liang-ta Yeh, Taipei County, TW;
Chin-Hung Lin, Taipei County, TW;
Hsien-Tsan Chang, Pingtung County, TW;
Chao-Lung Chang, Miaoli County, TW;
Liang-Ta Yeh, Taipei County, TW;
Darfon Electronics Corp., Taoyuan, TW;
Abstract
A keyboard with a wobble prevention structure, which is substantially a substrate having at least one press key arranged thereon while enabling each press key to be driven to move in a reciprocating manner following a specific direction, and having a plurality of position limit devices disposed on the substrate and beneath the periphery of a corresponding press key. In a preferred aspect, each position device is integrally formed with the substrate, or can be formed on the substrate by stamp forming technique, that each is used to confine the corresponding press key to move following only the specific direction, such that the wobbling of the press keys is prevented.