Circuit breaker with distribution lug terminal having trapped insulator
US5488337A · kind A · utility
Inventors
Key dates
| Filing date | Aug 5, 1993 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Aug 5, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/0264
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A molded insulator has a bottom wall, opposed sidewalls, and a transverse end wall extending between the sidewalls but spaced from the end of the bottom wall to define an opening in the bottom. A distribution lug is inserted from an open end of the insulator against the end wall, and under projections on inner surfaces of the sidewalls to trap the insulator against the end wall, and under projections on inner surfaces of the sidewalls to trap the insulator against up and down movement. The lug is attached to a circuit breaker terminal at the opening in the bottom to trap the end wall between the lug and the circuit breaker, blocking withdrawal of the insulator. A depending rib provides distal end support, while lateral ribs abut edges of barriers in the breaker housing to maintain the assembly properly aligned for electrical spacing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.