Setting tool for screwing-in threaded rods

Details Setting tool for screwing-in threaded rods Setting tool for screwing-in threaded rods

1986-09-19

1988-05-24

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Stud-removal and implacement

81 5733, 279 4, 279 7, B25B 1350, B25B 2100

Patent

active

047458313

ABSTRACT:
A setting tool for screwing a threaded rod into a receiving material includes a work driver formed by a sleeve-like member. A retainer part is secured within one end of the sleeve-like member for holding the threaded rod while it is inserted. The end of the threaded rod located in the retainer part bears against a piston positioned within the sleeve-like member. A hydraulic medium holds the piston against the end of the threaded rod so that the rod is held in the work driver. After a threaded rod has been set, the rod can be removed from the retainer part by relieving the pressure of the hydraulic medium acting on the piston. The pressure is built-up as the threaded rod is screwed into the receiving material. The pressure is released by opening a valve connected to the space in the sleeve-like member containing the piston and hydraulic medium.

REFERENCES:
patent: 4019378 (1977-04-01), Keller et al.

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