Patent ID: 6184843
Filing Date: 2001-02-06
Classification: H01Q

Abstract:
Extendable/stowable apparatus comprising:an elongated stem having a fixed end and an opposed free end, at least one anti-rotation surface on the stem extending from adjacent the fixed end to adjacent the free end;an apparatus carrying bearing slidably engaged on the stem for sliding movements between a stow position at the fixed end and an extended position at the free end, the bearing including a mating anti-rotation surface slidably engaged with the anti-rotation surface on the stem; anda detent surface formed on one of the stem and the bearing and including a detent stow slot and a detent extend slot, and a detent mechanism formed on another of the stem and the bearing and including a detent spring biased against the detent surface so as to engage the detent stow slot when the bearing is slid to the stow position and to engage the detent extend slot when the bearing is slid to the extended position.