Patent · US Expired

Electric signaling arrangement for delivery of waking signals

US4084104A · kind A · utility

5Cited by

5References

12Claims

0Family size

Assignee

Kieninger & Obergfell Fabrik fur Technische Laufwerke und Apparate

Inventors

Erich Scheer · St. Georgen, DE
Manfred Rauer · St. Georgen, DE

Key dates

Filing date	Mar 26, 1976
Grant date	Apr 11, 1978
Priority date	—
Expiry date	Mar 26, 1996

Classification

Technology area (CPC G)Physics
CPC primaryG04C21/20
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An electric clock having clockwork is provided with a signaling arrangement hich automatically resets for operation of an alarm or waking signal and does not require resetting each day by the user. Resetting is accomplished by a contact device which switches on once during each twenty four hour period at a preselected hour corresponding to the hour at which the alarm is to begin. A second contact device switches on for a brief period during each hour and triggers a bistable multivibrator which is automatically reset each hour. The output of the bistable device is applied to a logic circuit whose other input derives from a third contact device setting the minute at which the alarm is to be initiated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.