Combustion-operated setting tool

Elongated-member-driving apparatus – Explosive-type driving means – With plunger

Reexamination Certificate

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Details

C227S009000, C123S0460SC, C123S0460SC, C123S0460SC, C123S023000, C123S02400R

Reexamination Certificate

active

11404935

ABSTRACT:
A combustion-operated setting tool for driving fastening elements in a constructional component includes a device (30) for adjusting setting energy applied to a setting piston (15) axially displaceable in a guide space (4) of a piston guide (13). The adjusting device (30) has a separation member (31) adjustably arranged between the receptacle (18) and the guide space (14) of the piston guide (13) and dividing the combustion chamber (20) in a first sub-chamber (21) arranged between the receptacle (18) and the separation member (31) and a second sub-chamber (22) arranged between the separation member (31) and the guide space (14) of the piston guide (13), the separation member (31) having a plurality of through-openings (34, 35) for controlling flow of the combustion gases into the guide space (14) of the piston guide (13), with an active opening cross-section of at least a portion of the through-openings (34, 35) changing dependent on an adjustable position of the separation member (31).

REFERENCES:
patent: 4773581 (1988-09-01), Ohtsu et al.
patent: 6321968 (2001-11-01), Remerowski
patent: 6755335 (2004-06-01), Fielitz
patent: 199 62 584 (2001-06-01), None
patent: 199 62 697 (2001-06-01), None

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