Patent · US Expired

Rotary contact assembly for high ampere-rated circuit breaker

US6326868A · kind A · utility

17Cited by

170References

26Claims

0Family size

Assignee

General Electric Company · US

Inventors

Stefan Kranz · Eutin, DE
Francesco DeVizzi · Milano, IT
Rolf-Dieter Bauer · Ditzingen, DE

Key dates

Filing date	Jul 1, 1998
Grant date	Dec 4, 2001
Priority date	—
Expiry date	Jul 1, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH01H77/104
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit breaker rotary contact arm is used within a plurality of single pole circuit breakers ganged together to form a single multi-pole circuit breaker. To provide uniform contact wear among the associated circuit breaker contacts, the rotor carrying the rotary contact arm pivot is slotted to automatically position the rotary contact arm to allow for changes in the contact geometry while maintaining constant contact compressive forces. The individual circuit breakers connect with the central operation mechanism by means of a single pin.

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