Electronic timer

US4749874A · kind A · utility

Assignee

• Diehl GmbH & Co. · DE

Inventors

• Alfred Meisner · Nuremberg, DE
• Werner Arnold · Plankstadt, DE
• Tilmann Kruger · Neunkirchen, DE

Key dates

• Filing date: Jun 11, 1987
• Grant date: Jun 7, 1988
• Expiry date: Jun 11, 2007

Classification

• Technology area (CPC G): Physics
• CPC primary: G04F1/005
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An electronic timer, preferably a kitchen range timer, which includes a control circuit, a display area, input elements, and a switching arrangement which selectively connects an appliance (auto mode) which is operable through the timer directly with a current supply (manual mode). The control circuit is switched into the auto mode through the input of at least one complete switching term, whereby after traversing of the switching terms in the control circuit, the latter is switched into a wait-mode, wherein the appliance which is already separated from the current supply, remains separated from the current supply, and wherein the control circuit which is connected in the wait-mode is switched back into the manual-mode upon the actuation of the manual input element which is provided for this purpose.