Patent · US Expired

Meter setting mechanism

US4050374A · kind A · utility

43Cited by
6References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 21, 1976
Grant dateSep 27, 1977
Priority date
Expiry dateJun 21, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG07B2017/00548
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

For sequentially setting independently-rotatable spur gears which are coupled to print wheels in a postage meter, a yoke carrying a selectively-driven master gear is shifted along an axis parallel to the common axis of the adjacent gears. A rack attached to the yoke is driven by a pinion gear on a stepping motor shaft. The yoke is spring-biased to a disabled position in which the spur gears are mechanically locked into position by tooth troughs on the yoke surface. A print interlock mechanism permits printing only when the yoke is held in an enabled position against the force of the biasing spring.

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