Hammer-activated powder-actuated fastening tool

Details Hammer-activated powder-actuated fastening tool Hammer-activated powder-actuated fastening tool

1976-02-09

1977-05-24

Custer, Jr., Granville Y.

Elongated-member-driving apparatus

Explosive-type driving means

With plunger

B25C 114

Patent

active

040250296

ABSTRACT:
A powder-actuated fastening tool is provided with a firing mechanism which permits the powder cartridge to be fired by a hammer. The tool includes an outer housing, a piston guide slidable within the housing, and a piston slidable within the piston guide. An abutment in the housing extends through a slot in the piston guide and is engageable with the piston for moving the piston rearwardly relative to the piston guide to eject a spent cartridge and to position the piston for firing. The cartridge is mounted within a cartridge holder on the end of the piston guide, and the cartridge-firing mechanism is mounted on the end of the housing. The cartridge-firing mechanism includes a guide tube secured to the housing, a bolt slidable within the guide tube, and a spring biasing the bolt away from the cartridge holder. A cartridge in the cartridge holder can be fired by striking the bolt with a hammer with sufficient force to overcome the resistance of the spring and to cause the bolt to strike and fire the cartridge.

REFERENCES:
patent: 2768375 (1956-10-01), Catlin
patent: 3348751 (1967-10-01), Henning
patent: 3563439 (1971-02-01), Pomeroy

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