Patent ID: 6123242
Filing Date: 2000-09-26
Classification: B25C

Abstract:
An explosive powder charge operated bolt-setting tool for setting a bolt and comprising:a barrel guiding sleeve;a locking part;a piston including a piston shank and a piston head extending from the piston shank;a barrel including a piston guiding bore, a mouth, and ventilation slots, said piston guiding bore including a cartridge store disposed remotely to said mouth, said barrel guided in the barrel guiding sleeve and configured for being brought into operative engagement with the locking part, the piston guiding bore accommodating the piston, the ventilation slots opening into the barrel,wherein the ventilation slots are blocked by the piston head when the piston is in a starting position and are configured to ventilate the barrel when said ventilation slots are released by the piston head as the bolt is being set, an air cushion excluding combustion gases being compressed between the piston head and the barrel when said bolt is being set, said air cushion subsequently pushing the piston to the starting position.