Fastening element setting device with setting indicator

Details Fastening element setting device with setting indicator Fastening element setting device with setting indicator

1987-12-21

1989-03-14

Bell, Paul A.

Elongated-member-driving apparatus

Explosive-type driving means

With plunger

227156, B25C 114, B25C 118

Patent

active

048118834

ABSTRACT:
An explosive powder charge operated fastening element assembly setting device is used to drive a fastening element into a hard receiving material such as concrete, steel and the like. The device includes a striker piston transmitting driving force to the fastening element assembly. The forward end of the striker piston has a marking projection. If excessive driving energy is transmitted from the striker piston to the fastening element assembly, the marking projection forms an imprint in a guidance disk of the assembly. The extent of the imprint provides a gauge of the excessive driving force which results in unsatisfactory insertion of the fastening element. If an annularly-shaped marking projection is used, the imprint formed by it can be viewed from all sides of the fastening element.

REFERENCES:
patent: 3382751 (1968-05-01), Kopf
patent: 4492329 (1985-01-01), Benson et al.

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