Smart card actuated dome contact switch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 2, 2001
Grant Date -
N/A
app pub date -
Dec 7, 1998
filing date -
Dec 26, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A switch assembly (30, FIG. 3) for detecting full insertion of a smart card, is of small thickness and can be mass produced with high precision. The switch assembly includes a molded support (100) forming an upwardly-opening support cavity (114), outer and central contacts (38, 40) mounted on the support and having dome-engaging parts (148, 150) lying in the support cavity, and a tripping dome (36) lying in the support cavity with a center portion lying over the dome-engaging part of the central contact. A cover (32) receives the support in a downward-opening cover cavity (65), and holds an actuating device (42) that can depress the tripping dome to close the switch. The actuating device is of sheet metal, with a heel (67) that is fixed in the rear end of the cover cavity, with a second part (82) substantially engaged with the center portion of the tripping dome, and with a front end forming an actuating lever (88) that extends through an opening (52) in the cover to be depressed by a smart card. The contacts have intermediate portions lying in a common plane and embedded in the support, with the dome-engaging part of the central contact being downwardly bent.
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