Patent ID: 6411191
Filing Date: 2002-06-25
Classification: H01C

Abstract:
A current-limiting device comprising:a current-limiting material; first and second electrodes structured for carrying current through said current-limiting material, said first electrode electrically engaging a first portion of said current-limiting material, said second electrode electrically engaging a second portion of said current-limiting material; and means for providing a non-uniform pressure distribution between at least one of said first and second electrodes and said current-limiting material, wherein said electrodes have a first surface and a second surface which engages said current-limiting material; and wherein said means for providing a non-uniform pressure distribution includes a rubber spring member having a plurality of openings, said rubber spring member being positioned on the first surface of one of said electrodes, a plate positioned on said rubber spring member, and means for applying a clamping force to clamp said rubber spring member and said one of said electrodes between said plate and the first surface of the other one of said electrodes, in order to provide said non-uniform pressure distribution.