Patent · US Expired

Lockable electrical apparatus

US5186637A · kind A · utility

7Cited by
4References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 27, 1991
Grant dateFeb 16, 1993
Priority date
Expiry dateSep 27, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01H9/281
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The described fuse holders or analogous electrical equipment is blocked by a padlock and a clip against being casually changed from its locked condition so that the controlled circuit remains energized or denergized. The clip is captive between the fuse carrier of the fuse holder and the fuse holder's receptacle but the clip is no longer captive when the fuse carrier is removed from the receptacle.

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