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:
Mar. 08, 2011
Filed:
Nov. 21, 2007
Applicant:
Liang-ta Yeh, Shulin, TW;
Inventor:
Liang-Ta Yeh, Shulin, TW;
Assignee:
Darfon Electronics Incorporated, Taoyuan, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 13/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a key switch with an exhaust structure, which includes a keycap having a top surface and an inner surface with a cavity and an elastic member. The elastic member includes a protrusion and an elastic body. The protrusion is coupled with the inner surface of the keycap. A gas channel is formed between the cavity of the keycap and the protrusion of the elastic member. When an external force is applied to the top surface of the keycap to compress the elastic body, the gas within the elastic member can be exhausted through the gas channel of the elastic member.