Patent ID: 7337912

Claim:
A crane comprising: a telescoping boom comprising a base boom member and an inner telescopic member slidably mounted in said base boom member and having a first end projecting from said base boom member, said first end of said inner member including a first connector element at a first side thereof and a second connector element at a second side thereof; a boom extension having a first end and a second end, said boom extension first end including a first attachment element at a first side thereof and a second attachment element at a second side thereof, said boom extension further including first and second spaced bracket assemblies, said first bracket assembly being located between said second bracket assembly and said boom extension first end; said boom extension being shiftable between a use position wherein said first attachment element is connected to the opening of said first connector element and said second attachment element is connected to said second connector element and a storage position wherein said boom extension is connected to first and second supports on said base boom member; said first support comprising a holder for pivotably retaining said first bracket assembly; said second support comprising a rail projecting from said base boom section and a slider slidably supported by said rail; and an actuator connected between said slider and said boom for shifting said slider between a retracted position and an extended position relative to said base boom member.