Patent · US Expired

Overvoltage protection plug with fail-safe device having optional visual fail-fail signal indicator

US5936821A · kind A · utility

11Cited by

9References

20Claims

0Family size

Assignee

Krone Corporation · DE

Inventors

Ralf-Dieter Busse · Iserlohn, DE
Joachim Stark · Berlin, DE
Carstein Storbeck · Berlin, DE

Key dates

Filing date	May 20, 1998
Grant date	Aug 10, 1999
Priority date	—
Expiry date	May 20, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH01T1/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An overvoltage protection plug is provided, including at least one voltage-limiting component with an associated fuse element and a fail-safe device (6). The fuse element trips the fail-safe device (6) in the event of thermal overheating. The fail-safe device can optionally be upgraded with visual fail-safe signaling, wherein the voltage-limiting component is arranged with the associated fuse element and the fail-safe device (6) as an enclosed unit on a first printed circuit board (3) to which, optionally, the visual fail-safe signaling, which is arranged on a separate, second printed circuit board (10), can be assigned.

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