Patent · US Expired

Battery operated clock

US4276634A · kind A · utility

6Cited by

4References

9Claims

0Family size

Assignee

Gebruder Junghans GmbH · DE

Inventors

Friedrich Assmus · Schramberg, DE
Hans Flaig · Schramberg, DE
Robert Wolber · Lauterbach, DE
Roland Maurer · Lauterbach, DE

Key dates

Filing date	Aug 22, 1979
Grant date	Jun 30, 1981
Priority date	—
Expiry date	Aug 22, 1999

Classification

Technology area (CPC G)Physics
CPC primaryG04C3/008
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A clock is disclosed comprising a housing which includes mounts for supporting clockhands, and a clockwork for driving the hands. The clock also includes a motor, an electronic circuitry for conducting electrical power to the motor, and a circuit board. The motor includes a coil, a stator, and a rotor. The circuit board includes means for carrying the electronic circuitry, coil and stator externally of the housing to form a pre-assembled module which can be pushed into the housing into contact with respective retaining parts on the housing.

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