Patent · US Expired

Vacuum contactor

US6747232B1 · kind B1 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Johann Drexler · Schwandorf, DE
Markus Kropp · Warmsen, DE
Bardo Koppmann · Feldkirchen-Westerham, DE
Markus Meier · Aarau, CH
Norbert Mitlmeier · Ursensollen, DE

Key dates

Filing date	Jun 21, 2002
Grant date	Jun 8, 2004
Priority date	—
Expiry date	Jul 27, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01H33/38
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a vacuum contactor, the armature is initially deflected from an armature rest position through an initial movement distance, and then through a driving movement distance to an armature operating position when a pull-in current is applied to a drive coil. An operating element is deflected from an element rest position to an element operating position by the armature only while the latter is passing through the driving movement distance. This makes it possible to achieve a good tripping characteristic of the vacuum contractor.

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