Trackball supporting device

Details Trackball supporting device Trackball supporting device

1993-10-01

1995-02-28

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345157, G09G 302

Patent

active

053941691

ABSTRACT:
A trackball supporting device includes a plurality of trackball supports respectively installed in holes around a base to support a trackball on a trackball seat on the base, each trackball support including a front socket, a rolling ball revolvably retained in the respective front socket to support the trackball in the trackball seat, and a lubricating device to lubricate the respective rolling ball, each mounting hole having symmetrical hooks with raised portions clamped on the respective trackball support to hold it in position.

REFERENCES:
patent: 3789218 (1974-01-01), Blount
patent: 4780707 (1988-10-01), Selker
patent: 5171978 (1992-12-01), Mimlitch et al.

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