Patent ID: 6992642

Claim:
A retractable antenna comprising: an outer elongate telescopic element extending along an elongate axis; an inner elongate telescopic element which is slidable along said elongate axis with respect to said outer elongate telescopic element from a fully retracted position to a fully extended position; and an extended position retaining spring fixedly positioned with respect to said outer elongate telescopic element for frictional extended position retaining engagement with said inner elongate telescopic element when said inner elongate telescopic element is in said fully extended position but not when said inner elongate telescopic element is generally in a retracted position, said outer elongate telescopic element being formed with a throughgoing bore which extends along said elongate axis from a base end to an opposite end, said throughgoing bore being formed to have a first inner diameter D 1 at a first elongate portion thereof which extends along a majority of its length extending from said base end and a second inner diameter D 2 which is greater than said first inner diameter D 1 , at a second elongate portion thereof near but spaced from said opposite end.