Patent attributes
A telescopic device includes a first shaft telescopically coupled to a second shaft. The first shaft defines a hole and an orifice. The second shaft defines a plurality of engaging portions. The second shaft inserts in the hole. The second shaft is movable with respect to the first shaft to a position in which one of the plurality of engaging portions is aligned with the orifice. A positioning device is coupled to the first and the second shafts. The positioning device includes a control being movable and a fastener being movable actuated by the control. The fastener is movable with respect to the control. The fastener inserts and is movable in the orifice. The first shaft is adapted to be unmovably positioned with respect to the second shaft at various positions by the positioning device.
