Patent · US Expired

Display mechanism for timepieces

US3977179A · kind A · utility

6Cited by
7References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 22, 1975
Grant dateAug 31, 1976
Priority date
Expiry dateApr 22, 1995

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04B19/00
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A timepiece display mechanism having an indicator member on which are formed a series of indicating marks which overlap each other; some of the marks forming different indications are intermingled. The marks are viewed through an aperture which comprises a series of openings distributed along an outline corresponding to a superposition of all the indications; this outline is situated within an angle which has its apex at the center of the indicator member and is greater than an angle obtained by dividing 360.degree. by the total number of indications.

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