<p>A telescoping mast has a plurality of elongate tubular sections which are telescopically attached to each other and an axial drive screw centrally located in the mast for extending and retracting the elongate tubular section. A gear assembly is connected to the drive screw for rotating the drive screw. A nut carrier assembly is secured to tubular sections. Each nut carrier assembly has a threaded nut housed within a nut carrier. The threaded nut engages corresponding threads on the drive screw. A locking mechanism is provided for locking the gear assembly which has a first section surrounding a second section secured to the gear assembly. The second section has an elongated member extending from a surface of the second section. The first section has at least one slot for engaging the elongated member, thereby preventing rotation of the gear assembly.</p>
申请公布号
WO2006098739(A2)
申请公布日期
2006.09.21
申请号
WO2005US15500
申请日期
2005.05.04
申请人
THE WILL-BURT COMPANY;BLACKWELDER, PAUL, BRADFORD;KARDOHELY, MICHAEL, J.
发明人
BLACKWELDER, PAUL, BRADFORD;KARDOHELY, MICHAEL, J.