Patent ID: 7772865
Filing Date: 2010-08-10
Classification: G01R

Abstract:
1. A device for providing electrical contact, the device comprising: a first reciprocating conductive body having a first contact at one end and a first abutting body at another end; a second reciprocating conductive body having a second contact at one end and a second abutting body at another end; and a helical spring biasing the first reciprocating conductive body and the second reciprocating conductive body in opposing directions axially away from each other, wherein the helical spring comprises an intermediate concentric coil that is smaller than diameter of coils at opposing ends such that the intermediate concentric coil biases the first abutting body against the second abutting body: wherein the first abutting body comprises two flat surfaces that are arranged in a V form and the second abutting body comprises two flat surface that are arranged in a matching but inverted V form so that the first abutting body is slidably abutting the second abutting body, thereby providing electrical conductivity between the first reciprocating conductive body and the second reciprocating body.