Patent · US Expired

Electrical fuse

US4417226A · kind A · utility

22Cited by

5References

17Claims

0Family size

Assignee

Wickmann-Werke GmbH · DE

Inventors

Norbert Asdollahi · Witten, DE
Christian Gutzmer · Witten, DE

Key dates

Filing date	Dec 16, 1981
Grant date	Nov 22, 1983
Priority date	—
Expiry date	Dec 16, 2001

Classification

Technology area (CPC H)Electricity
CPC primaryH01H85/0082
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A miniature fuse has a housing consisting of a plastics base (1), a plastics cap (2), and two conductors which pass through the base and are bridged across inside the cap by a fusible conductor (3). The interior of the fuse housing is fully or partially lined with a ceramic-based lining (5) to protect the plastics against thermal decomposition and to promote condensation of the fusible conductor which may be evaporated, upon blowing of the fuse, to reduce internal pressure in the housing and hence avoid separation of the cap from the base and exposure of conductive parts.

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