Explosive charge operated device for driving fastening elements

Details Explosive charge operated device for driving fastening elements Explosive charge operated device for driving fastening elements

1985-07-25

1986-06-17

Bell, Paul A.

Elongated-member-driving apparatus

Explosive-type driving means

227 10, B25C 110, B25C 114

Patent

active

045951349

ABSTRACT:
In an explosive charge operated device for driving fastening elements into a receiving material, a throttling device is arranged for conveying explosive gases from a barrel out of the device housing. The throttling device is a tubular member containing a displaceable nozzle needle. The position of the nozzle needle controls the flow of gas out of the tubular member. When an explosive charge is fired, the barrel is axially displaceable opposite to the direction for driving a fastening element from the device. As the barrel is displaced the throttling cross-section through the throttling member is increased as the throttling member is displaced so that the outflow of the explosive gases and the peak values of the sound level is considerably reduced as compared to similar previously known devices.

REFERENCES:
patent: 3204400 (1965-09-01), Kuavle
patent: 4153192 (1979-05-01), Jochum
patent: 4382533 (1983-05-01), Buechel et al.

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