Hammer-strikable, powder-actuated, fastener-driving tool

Details Hammer-strikable, powder-actuated, fastener-driving tool Hammer-strikable, powder-actuated, fastener-driving tool

1993-06-21

1994-05-10

Smith, Scott

Elongated-member-driving apparatus

Explosive-type driving means

With plunger

B25C 114

Patent

active

053101081

ABSTRACT:
In a hammer-strikable, powder-actuated, fastener-driving tool, a breech block is mounted within a generally tubular body by several resilient shock absorber structures, each including an elastomeric grommet, an eyelet having a tubular portion surrounded by the grommet and an annular portion, a washer interposed between the annular portion and one end of the grommet, and a screw attaching the breech block to the body. The screw shank extends through the grommet. The screw head bears against the washer. The breech block mounts a firing pin, which is biased backwardly to a normal position, and to which a hammer-strikable button is connected. A barrel mounted to the body so as to be axially movable with respect thereto has an elongate slot. A stud mounted upon the body extends through the slot. A washer disposed around the stud is biased against the barrel so as to impart frictional drag to the barrel.

REFERENCES:
patent: 3255942 (1966-06-01), Bell et al.
patent: 3860161 (1975-01-01), Eagstrom et al.
patent: 4025029 (1977-05-01), Kotas et al.
patent: 4252259 (1981-02-01), Brosius
patent: 4493376 (1985-01-01), Kopf
patent: 4651912 (1987-03-01), Hawkins
patent: 4655380 (1987-04-01), Haytayan
patent: 4830252 (1989-05-01), Gottlieb et al.

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