Patent · US Expired

Protection plug

US5574614A · kind A · utility

33Cited by

1References

5Claims

0Family size

Assignee

Krone Corporation · DE

Inventors

Ralf-Dieter Busse · Iserlohn, DE
Harlad Klein · Berlin, DE
Johann Oltmanns · Berlin, DE
Gerd Richter · Berlin, DE

Key dates

Filing date	Aug 17, 1995
Grant date	Nov 12, 1996
Priority date	—
Expiry date	Aug 17, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH01R9/2433
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An over-voltage protection plug for telecommunication installations, including a housing with a printed-circuit board, a voltagesurge suppressor, a slider, a spring, an earth plate, a signalling element. Reliable protection against voltage surges is provided, wherein the solder position is loaded to a minimum extent only. The plug is composed of few parts only and further permits automated manufacture at low cost, and which clearly shows the tripped condition at the outside. The slider is pre-loaded over a support face and over an edge at the inner housing wall in the housing by the spring. A shaped part of solder material is loaded to a minimum extent only by the spring force (pressure force) of the slider.

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