Tensioning device for prestressing a rod, and related...

Details Tensioning device for prestressing a rod, and related... Tensioning device for prestressing a rod, and related...

2007-10-02

2007-10-02

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C254S02900A

Reexamination Certificate

active

11017414

ABSTRACT:
The invention relates to a device for tensioning a threaded rod (1). The inventive device comprises: an actuator (5) which can exert an axial force; and a tie rod (6) which transmits the axial force from the actuator (5) towards a threaded end (1b) of the rod (1b), said tie rod (6) comprising at least two jaws (31) which can move radially between a closed position, in which the tie rod (6) is engaged with a threaded end (1b) of the rod (1), and an open position in which the jaws (31) are disengaged from the threaded rod (1b). Moreover, said device comprises a locking element (45) which can move between a jaw (31) opening position and a jaw (31) closing position.

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