Digital and analog teaching clock

US5851118A · kind A · utility

Assignee

• Learning Resources, Inc. · US

Inventors

• Richard Woldenberg · Highland Park, US
• Yuen Po Man · Tai Po, CN

Key dates

• Filing date: Sep 13, 1996
• Grant date: Dec 22, 1998
• Expiry date: Sep 13, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G09B19/12
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A teaching clock comprising an analog clock face having numeric indicia of hour and minute disposed about its periphery, an hour hand and a minute hand pivotally mounted and substantially centrally disposed proximate to the analog clock face, a digital time display disposed adjacent to the analog clock face, and a gear assembly responsive to movement of the minute hand for conforming a time displayed by the digital time display to a time indicated by the hour hand and the minute hand.