Keyboard system and module therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 17, 1985
Grant Date -
N/A
app pub date -
Oct 19, 1983
filing date -
Oct 19, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A keyboard system comprises a circuit board having a matrix of contact switches. A module comprises a matrix of keys in actuating correspondence with the contact switches. The keys are of a resilient elongated form having at the terminus an upwardly projecting contact button and a pair of downwardly projecting pegs. One peg contacts a contact switch for actuation thereof. The other peg is receivable in a recess in the circuit board for maintaining alignment of the key. The module also forms a support for an overlying membrane wherein manual depressing of selective locations of the membrane actuates a corresponding contact switch.
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Family
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Cited Art Landscape
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