Ruggedized keyboard with cursor positioning device
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United States of America Patent
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Mar 16, 2004
Grant Date -
N/A
app pub date -
Oct 11, 2002
filing date -
Oct 11, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rugged keyboard and cursor positioning device with an inherent restiveness from external fluids to interior keyboard fluid contamination. The key interrupters and cursor positioning device block optical beams for key and cursor positioning detection thus eliminating contacts and contact actuation life. When a key is in the most depressed position the key cap is against the keyboard top surface protecting all internal parts from pressure, or force from harsh use or a vandals blow.
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