Patent · US Expired

Digital clock

US4175373A · kind A · utility

2Cited by
9References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 30, 1977
Grant dateNov 27, 1979
Priority date
Expiry dateDec 30, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04C17/0025
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A digital display clock including a one-minute indicating wheel, a ten-minute indicating wheel and an hour indicating wheel which are driven by intermittent and segmental rotations through separately provided Geneva-gear mechanisms for each individual indicating section, a driving system arranged in the back of digital clock, so that the clock is able to provide a wide and effective display area in front of the clock and an excellent design for a 24 hour display digital clock with diversity.

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