Patent · US Expired

Watch movement with a rotating minute disc

US4472068A · kind A · utility

3Cited by
3References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 10, 1983
Grant dateSep 18, 1984
Priority date
Expiry dateJan 10, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04C17/005
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Movement for a wrist watch, having at least one rotatable minute disc, a drive connection between the toothed disc edge and a drive pinion, being reliably and positively maintained in that the disc is mounted with clearance and capable of tilting, in that simple guide pins for the disc edge are provided on both sides of the disc in the region of the drive connection between the pinion and the disc. For example, one guide pin may be provided on each side of the minute disc. Alternatively, one pin is provided on one side of the disc and two additional guide pins lie opposite to this first pin on the other side of the disc.

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