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:
Apr. 07, 2015
Filed:
Sep. 30, 2012
Lite-on Electronics (Guangzhou) Limited, Guangzhou, CN;
Lite-on Technology Corporation, Taipei, TW;
Hai-Nan Shen, Dong Guan, CN;
Shan-Yu Lu, Zhao Qing, CN;
Lite-On Electronics (Guangzhou) Limited, Guangzhou, CN;
Lite-On Technology Corporation, Taipei, TW;
Abstract
A waterproof keyboard includes a lower housing, a circuit membrane disposed on the lower housing, a pressure plate disposed on the circuit membrane, an elastomer member, an upper housing disposed on the elastomer member and a plurality of key caps disposed on the upper housing. The pressure plate has a main body formed with a plurality of openings and ridges. The elastomer member has a plurality of switch domes disposed in the openings correspondingly, a base layer disposed on the main body, and a plurality of raised portions disposed on the ridges respectively. The ridges of the pressure plate presses tightly to the underside of the raised portions. The pressure plate is constructed to evenly support the elastomer member.