Cleaning trackball for a computer pointing device
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United States of America Patent
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-
Apr 20, 1999
Grant Date -
N/A
app pub date -
Aug 24, 1995
filing date -
Mar 22, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention consists of a trackball (16) for a computer pointing device (10) with a layer of fabric (20, 50) hot-pressed onto the trackball (16). The trackball of the present invention cleans the internal parts of the computer pointing device, in particular the direction sensors (30, 32) of the device. The trackball (16) can be placed permanently in the computer pointing device (10) where it simultaneously cleans and actuates the direction sensors (30, 32) in the normal manner.
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