Keyboard switch
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United States of America Patent
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-
Apr 26, 1994
Grant Date -
N/A
app pub date -
Jun 15, 1992
filing date -
Jun 15, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A keyboard switch has a deformable membrane which, when deformed, enables electrical contact between a pair of contacts. A key stem is urged away from the deformable membrane by an elastic body. When the key stem is displaced sufficiently, the elastic body imparts a click feel. The key stem, when displaced a sufficient amount, deforms the deformable membrane to make the electrical contact.
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