Patent ID: 7552933

Claim:
A cargo trailer, comprising: an elongated trailer frame having a longitudinal axis and comprising a pair of elongated, spaced-apart side trailer frame members and a front transverse trailer frame member and a rear transverse trailer frame member carried by said side trailer frame members; a pair of cargo container mount members carried by said trailer frame and positionally adjustable along said longitudinal axis of said trailer frame; a first wheel mount arm and a second wheel mount arm pivotally carried by said side trailer frame members, respectively, of said trailer frame; a first arm spring and a second arm spring interposed between said first wheel mount arm and said trailer frame and said second wheel mount arm and said trailer frame, respectively; a first wheel and a second wheel carried by said first wheel mount arm and said second wheel mount arm, respectively; and wherein each of said pair of cargo container mount members comprises an elongated mount shaft having first and second ends and a first pair of spaced-apart attachment flanges carried by said mount shaft at said first end and receiving a first one of said side trailer frame members and a second pair of spaced-apart attachment flanges carried by said mount shaft at said second end and receiving a second one of said side trailer frame members, and further comprising a first mount bolt engaging said first pair of spaced-apart attachment flanges and a second mount bolt engaging said second pair of spaced-apart attachment flanges.