Rollover and wipe projective circuit for an electrical switching

Details Rollover and wipe projective circuit for an electrical switching Rollover and wipe projective circuit for an electrical switching

1978-02-28

1979-07-24

Nerbun, Peter

Sewing

Work manipulating

Guides

307115, D05B 302

Patent

active

041619188

ABSTRACT:
A control panel influenced by the touch of an operator is disclosed in which the density of individually selectable inputs may be increased by the provision of protective measures for preventing inadvertent or accidental actuation of inputs which are located closely adjacent to an input that is intended to be actuated. A protective circuit for an electrical switching array is disclosed effective to prevent selection from being made unless the switching is effected by the operator in a prescribed fashion to prevent unintended selection in the event that the operator's finger should roll onto an adjacent switch during the selection process. The protective circuit also prevents further selection once a selection has been effected until the operator's finger is completely withdrawn from the switching array in order to provide protection against a series of consecutive selections in the event that the operator were to wipe across the switching array.

REFERENCES:
patent: 3508201 (1970-04-01), Morale
patent: 3628052 (1971-12-01), Mitchell
patent: 3872808 (1975-03-01), Wurst

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