Patent · US Active

Magnet core; method for its production and residual current device

US8344830B2 · kind B2 · utility

1Cited by

1References

40Claims

0Family size

Assignee

Vaccumschmelze GmbH & Co. KG · DE

Inventors

Joerg Petzold · Alzenau, DE
Markus Brunner · Bessenbach, DE

Key dates

Filing date	Jul 17, 2008
Grant date	Jan 1, 2013
Priority date	—
Expiry date	Oct 28, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49075
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A magnet core (1) that is suitable for use in a fault current circuit breaker and that is made of a helically wound, magnetically soft band has a top (4) and a bottom (5), the top (4) and the bottom (5) being formed by side surfaces (16) of the magnetically soft band. The magnet core (1) is fixed in a protective housing (6), and there is a contact cement (11) between the bottom (5) of the magnet core (1) and an inside wall (10) of the housing for fixing the magnet core (1).

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