Fastening apparatus with indirect firing

Details Fastening apparatus with indirect firing Fastening apparatus with indirect firing

2005-01-04

2005-01-04

Smith, Scott A. (Department: 3721)

Elongated-member-driving apparatus

Explosive-type driving means

With plunger

Reexamination Certificate

active

06837411

ABSTRACT:
In the apparatus, a fastening element is driven into a support under the action of the gases from an explosive charge via a piston (2) that can move in a gun between a firing position and a fastening position, and a plug guide (5) in which a piston-braking ball (6) mechanism is mounted, which comprises arms (7) mounted to pivot on the plug-guide (5) arranged to modulate the radial force of the balls (6), depending on the relative displacement of the gun (3) and of the piston (2), between a maximum force when the piston (2) moves forward in the gun, and a non-zero minimum force, when the piston (2) moves back.

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