Cleaning trackball for a computer pointing device

Details Cleaning trackball for a computer pointing device Cleaning trackball for a computer pointing device

1995-08-24

1999-04-20

Nguyen, Chanh

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345167, G09G 508

Patent

active

058961240

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.

REFERENCES:
patent: 4673440 (1987-06-01), Chaplin
patent: 4760618 (1988-08-01), Chapin, Jr.
patent: 4797665 (1989-01-01), Ida et al.
patent: 4951034 (1990-08-01), Mazzone et al.
patent: 5214415 (1993-05-01), Pandolei
patent: 5486845 (1996-01-01), Chait

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