Patent ID: 8547128

Claim:
An electrical contact probe comprising a first plunger, a second plunger, and a coil spring; (a) the first plunger comprising a contact portion adapted for making a conductive connection to an input/output terminal of a first device; and a coupling means adapted to slidably and non-rotatably engage the second plunger; the coupling means having a lengthwise slot and two adjoining tines, each tine having a free end and a predetermined length, and comprising canted surfaces extending along the length of the tine; (b) the second plunger comprising a contact portion adapted for making a conductive connection to an input/output terminal of a second device; and a coupling means adapted to slidably and non-rotatably engage the first plunger; the coupling means having a lengthwise slot and two adjoining tines, each tine having a free end and a predetermined length, and comprising canted surfaces extending along the length of the tine; (c) a coil spring having a central axis, a first end, and a second end; the first end being engaged to the first plunger, and the second end being engaged to the second plunger; wherein the plungers are slidably and non-rotatably coupled to each other and the spring is captivated between the plungers, whereby when the contact probe is compressed between the first device and the second device, the spring provides an axial bias for a conductive connection of the plungers to the respective input/output terminals of the first and the second device.