US Patent 7919719 Dome contact used in pushbutton switch
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Patent abstract
A dome contact (32) for pushbutton switches (300) includes a diaphragm (33) having a reversible dome portion (331), and a bump (34) 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.
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Patent Inventor Names
Cheng-Lung Chang0
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US Patent 07919719 Dome contact used in pushbutton switch US Patent 7919719 Dome contact used in pushbutton switch
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Patent Number
079197190
Patent Number
79197190
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Patent Jurisdiction
Patent Number
079197190
Date of Patent
April 5, 2011
0Patent Application Number
121922140
Date Filed
August 15, 2008
0Official Website
Patent Primary Examiner
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US Patent 07919719 Dome contact used in pushbutton switch
Infobox
Is a
Patent jurisdiction
Patent number
07919719
Date of patent
April 5, 2011
Patent application number
12192214
Date Filed
August 15, 2008
Patent primary examiner
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