Visual ring indicator

Details Visual ring indicator Visual ring indicator

1975-08-13

1977-01-11

Claffy, Kathleen H.

H04M 121

Patent

active

040028534

ABSTRACT:
An automatic visual ring indicator for telephone station sets which includes a mechanical indicator element viewable through a window in the telephone housing. The indicator element assumes its on position in response to the ringing action of the telephone. The off position of the indicator element is resumed in response to switchhook motion as in removal of the telephone handset.

REFERENCES:
patent: 2477918 (1949-08-01), Wortman
patent: 3055981 (1962-09-01), Smith
patent: 3288935 (1966-11-01), Hepner
patent: 3502819 (1970-03-01), Rogers

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