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. 05, 2011
Filed:
Aug. 15, 2008
Applicant:
Cheng-lung Chang, Tu-Cheng, TW;
Inventor:
Cheng-Lung Chang, Tu-Cheng, TW;
Assignee:
Chi Mei Communication Systems, Inc., Tu-Cheng, Taipei County, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dome contact () for pushbutton switches () includes a diaphragm () having a reversible dome portion (), and a bump () projecting from a central portion of a convex surface of the dome portion. A method for fabricating the dome contact includes steps of: providing a diaphragm formed by injection molding or screen printing; and forming a bump on a central portion of a convex surface of the diaphragm via thermal extrusion laminating technology of rapid prototyping technology.