Dome contact used in pushbutton switch

Details Dome contact used in pushbutton switch Dome contact used in pushbutton switch

2011-04-05

2011-04-05

Luebke, Renee S (Department: 2833)

Electricity: circuit makers and breakers

Solid contact

Membrane type

C200S0050EA

Reexamination Certificate

active

07919719

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.

REFERENCES:
patent: 4314116 (1982-02-01), Gordon
patent: 4376238 (1983-03-01), Martin
patent: 5881866 (1999-03-01), Miyajima et al.
patent: 6683265 (2004-01-01), Masuda
patent: 7605338 (2009-10-01), Karaki et al.

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