Patent ID: 7789814

Claim:
A device for removably attaching a weight to an elongated rod, comprising: a generally tubular or cylindrical member sized to be slid onto said elongated rod; wherein said tubular member has a pair of arms extending therefrom; said first arm and said second arm each having at least one open hook-shaped or notch-shaped opening; said first arm and said second arm being substantially symmetrical; and said hook-shaped or notch-shaped opening on said first arm and the corresponding hook-shaped or notch-shaped opening on said second arm are positioned substantially parallel to one another such that each can receive said weight, and the corresponding hook-shaped or notch-shaped openings on the first and second arm are positioned in relation to each other such that a bar can be removably placed into the openings and that said bar when placed into the openings is substantially perpendicular to said elongated rod; wherein said bar comprises the handle of a dumbbell; and wherein a pair of weight-hanging devices are each slidably attached to the end of a barbell weight bar and each has a dumbbell handle mounted therein to thereby convert a pair of dumbbells into a barbell.