Patent 7739784 was granted and assigned to BlackBerry on June, 2010 by the United States Patent and Trademark Office.
A method for installing a grounding clip into an antenna tube, comprising providing the antenna tube having a cylindrical tube, an upper end and an inner end opposite the upper end, a circumferentially extending groove in the cylindrical tube located between the upper end and the inner end and a tapered lip at the inner end of the cylindrical tube, providing the grounding clip having a resilient base ring, the base ring having an outer circumference for contact with the antenna tube and a gap in the base ring and at least one resiliently flexible contact pin being affixed to and extending from a first end of the base ring, deforming the grounding clip, inserting the deformed grounding clip over the circumferentially extending groove and releasing the clip to allow the clip to expand, wherein the expanded clip is held between the circumferentially extending groove and the tapered lip.