Hand controller spring

Details Hand controller spring Hand controller spring

1982-08-16

1984-07-03

Goldberg, E. A.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

267160, 273 1GC, 273DIG28, H01H 1900

Patent

active

044581149

ABSTRACT:
A hand controller for use in controlling the motion of a cursor on a video display comprises a spherical surface on which is mounted a flat plate. On the bottom of the flat plate is a unique electrical switch capable of indicating the direction in which the flat plate is rocked over the spherical surface. Attached to the bottom of the flat plate adjacent the spherical surface is a spring consisting of a substantially flat center position and four spiralling arms extending from the periphery of said center portion to attach to the structure on which the spherical surface is mounted. When the flat plate is rocked over said spherical surface, the spring generates a restoring force which, upon removal of the rocking force, restores the flat plate to its nominal position. The spring makes possible rocking motion of the flat plate over the spherical surface without pinning the flat plate to a point on the spherical surface. In one embodiment, the controller is capable of moving the cursor in eight different directions.

REFERENCES:
patent: 2907563 (1959-10-01), Verde et al.
patent: 3030477 (1962-04-01), Hensley
patent: 3700836 (1972-10-01), Rackson
patent: 3969595 (1976-07-01), Johnson
patent: 4214122 (1980-07-01), Kley
patent: 4312227 (1982-01-01), Ozols
patent: 4382166 (1983-05-01), Kim

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