Patent · US Expired

Operating arrangement for an electro-mechanical chronometer

US4494879A · kind A · utility

5Cited by
5References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 20, 1984
Grant dateJan 22, 1985
Priority date
Expiry dateJan 20, 2004

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01H19/585
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A driving or operating arrangement for an electro-mechanical chronometer, including an analog display having at least one indicator element, preferably for a microchronometer and/or microswitch, wherein the indicator element is driven at a rotational speed which is dependent upon the display position. An electro-mechanical transducer forming a drive element is actuated with at least one of the two pulse frequencies, through the intermediary of a switching device controlled in dependence upon the indicator positions, dependent upon the position of the analog display.

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