Patent · US Expired

Current--limiting switch

US5859579A · kind A · utility

7Cited by

11References

29Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

David Branston · Effeltrich, DE
Jorg Kieser · Albstadt, DE
Werner Hartmann · Hamburg, DE
Reinhard Maier · Herzogenaurach, DE

Key dates

Filing date	Jan 26, 1996
Grant date	Jan 12, 1999
Priority date	—
Expiry date	Jan 26, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2077/025
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Such switches have current connections for contacts. One contact may be a fixed contact and the other contact may be a mobile contact. A drive opens the mobile contact when a predetermined electric current intensity is exceeded. The electric drive is a thermoelectric drive. For that purpose, the contacts (2,3) are arranged in a closed housing (1) made of an insulating material and a disk-shaped resistive member (4) is arranged between the contacts (2,3). A switch of this type may also be advantageously designed as a bistable limiter.

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