Patent
1974-10-25
1976-07-20
Claffy, Kathleen H.
58152T, H04M 1518
Patent
active
039707938
ABSTRACT:
A long-distance telephone-call monitor and charge indicator, contained in a common housing with an electrically operated digital clock timing device. The timing device is coupled to the charge indicator at the start of the telephone conversation by first pre-setting the indicator to the fixed cost of the conversation for a limited period, for example, three minutes, and thereafter setting a rate indicating lever corresponding to the cost of the incremental periods thereafter, for example, additional minutes. The movement of the latter from an "off" position, effects the coupling of a variable speed-ratio friction drive with the timing device, which is automatically delayed for the above-mentioned period of three minutes. The housing includes a convenient facility for a continuous paper supply on which may be noted information pertinent to the telephone conversation, at the end of which, the indicator is uncoupled from the clock drive for manual resetting to its zero value, preparatory to making the next long-distance telephone-call.
REFERENCES:
patent: 2911144 (1959-11-01), Lee et al.
patent: 3075698 (1963-01-01), Fletcher
patent: 3390395 (1968-06-01), Gamburd et al.
patent: 3508392 (1970-04-01), Temps, Jr.
patent: 3512355 (1970-05-01), Lang
patent: 3673793 (1972-07-01), Barnard
patent: 3767862 (1973-10-01), Grushow
Lehmer, Jr. Merle E.
Profitt Leslie M.
Brigance Gerald L.
Claffy Kathleen H.
Lebowitz Samuel
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