Push-button unit for telephone sets

Details Push-button unit for telephone sets Push-button unit for telephone sets

1980-12-08

1983-05-31

Schreyer, Stafford D.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

179158R, 179178, 200 5R, 340365S, H01H 1316, H01H 6316, H01H 1370

Patent

active

043862403

ABSTRACT:
The buttons of the push-button unit disclosed are guided in the cover and provided with restoring springs. The contact springs of a row are cut free from a strip and pretensioned against the printed-circuit board lying under the strip. In the normal position, they are pulled against the cover by the button shafts. Located below the printed-circuit board is a slide which is actuated by all buttons and acts on the common contact.

REFERENCES:
patent: 3445610 (1969-05-01), Lind
patent: 3870840 (1975-03-01), Rivetta et al.
patent: 3919505 (1975-11-01), Becker et al.

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