Plug driving apparatus with a riser returning automatically to t

Details Plug driving apparatus with a riser returning automatically to t Plug driving apparatus with a riser returning automatically to t

1997-03-26

1998-08-25

Smith, S.

Elongated-member-driving apparatus

Explosive-type driving means

With plunger

227130, B25C 114

Patent

active

057975345

ABSTRACT:
The apparatus comprises along the riser (10) a return chamber with a front space (30) and a rear space (22) adapted to communicate with the combustion chamber (15) following a first displacement of the riser (10). Once the two spaces (30, 22) have been brought into communication with one another, they are separated from one another and the riser (10) is returned towards the rear in the barrel (9). The two spaces (30) and (22) communicate with one another during the displacement of the riser (10) and the rear space (22) is separated from, the front space (30) following a second forward displacement of the riser (10). As the rear space (22) communicates with the exterior of the apparatus, the expansion of the combustion gases trapped in the front space (30) then returns the riser (10) towards the rear into the firing position.
The apparatus serves to fix components to a support material.

REFERENCES:
patent: 2877750 (1959-03-01), Maier
patent: 3323705 (1967-06-01), Grotsch et al.
patent: 3678808 (1972-07-01), Hsu et al.
patent: 4122987 (1978-10-01), Jochum et al.
patent: 4196834 (1980-04-01), Beton
patent: 4358041 (1982-11-01), Ollivier
patent: 4711385 (1987-12-01), Jochum
patent: 4824003 (1989-04-01), Almeras et al.
patent: 5090606 (1992-02-01), Torii et al.
patent: 5170922 (1992-12-01), Ehmig et al.
patent: 5191861 (1993-03-01), Kellerman et al.
patent: 5538172 (1996-07-01), Jochum et al.
patent: 5680980 (1997-10-01), Robinson

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