Patent · US Expired

Fast operator

US4950851A · kind A · utility

0Cited by
2References
17Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 15, 1988
Grant dateAug 21, 1990
Priority date
Expiry dateAug 15, 2008

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01H3/3026
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A control circuit for a circuit interrupting switch having a non-stored energy operator reduces the time period between a switch command and a change of the switch contacts. The time period is reduced by prearming the mechanical operating linkage after each switch operation. By prearming the mechanical operating linkage, the linkage has less distance to travel and hence the time period between a switch command and a change in the switch contacts is greatly reduced.

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