Patent ID: 7588520

Claim:
A weight training device comprising a gripping handle at which said weight training device is lifted, a first weight plate connected to said gripping handle and having a coupling body projecting therefrom, and at least one additional weight plate to be detachably connected to said first weight plate, said additional weight plate having an engagement pin moving between retracted and extended positions relative to said first weight plate, said engagement pin being moved to the extended position at which to be removably received by said first weight plate, whereby said additional weight plate is detachably connected to said first weight plate, and said engagement pin being moved to the retracted position at which to be removed from said first weight plate, whereby said additional weight plate is disconnected from said first weight plate, said additional weight plate including a coupling slot aligned for receipt of the coupling body of said first weight plate and an engagement pin receiving channel communicating with said coupling slot, said engagement pin moving to the extended position and riding through the engagement pin receiving channel of said additional weight plate and into engagement with the coupling body of said first weight plate at said coupling slot, whereby said additional weight plate is lifted together with said first weight plate.