Pushbutton for use with pushbutton switches

Details Pushbutton for use with pushbutton switches Pushbutton for use with pushbutton switches

1979-10-25

1981-02-17

Shepperd, John W.

Electricity: circuit makers and breakers

Electric switch details

Actuators

H01H 312

Patent

active

042517036

ABSTRACT:
For physically disabled persons suffering from a disturbed coordination of movements it is necessary for the operating keys of e.g., telephone subsets, to be made variable with respect to the operating pressure. For this purpose the push-button head is designed in such a way that additional compression springs can be inserted or removed from above.

REFERENCES:
patent: 2480336 (1949-08-01), Orme
patent: 3367206 (1968-02-01), Moody
patent: 3773998 (1973-11-01), Seeger, Jr. et al.
patent: 3895205 (1975-07-01), Tharp
patent: 3899648 (1975-08-01), Murata

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