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:
Dec. 20, 2011
Filed:
Feb. 06, 2009
Applicant:
Yu-chih Cheng, Taipei, TW;
Inventor:
Yu-Chih Cheng, Taipei, TW;
Assignee:
Primax Electronics Ltd., Taipei, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H 13/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
A key structure and a keyboard including multiple key structures are provided. The key structure includes a keycap, a base plate and a scissors-type support member between the keycap and the base plate. The scissors-type support member includes an inner frame having a convex part and an outer frame having a V-shaped notch. The convex part is received in the V-shaped notch. By controlling relative positions between the convex part and the V-shaped notch, the keycap is stably moved in the vertical direction.