Internal-combustion engines – Free piston – Single chamber; one piston
Reexamination Certificate
2007-03-13
2007-03-13
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Free piston
Single chamber; one piston
C227S010000
Reexamination Certificate
active
11246400
ABSTRACT:
A combustion-engined setting tool for driving fastening elements such as nails, bolts, pins and the like in a constructional component, includes a combustion chamber (14) having an axially displaceable wall (14) displaceable over at least one guide (29) arranged in the combustion chamber (14) by a press-on element (30), a guide cylinder (12) adjoining the combustion chamber (14) and in which a setting piston (11) is displaceable for driving the fastening elements in the constructional component, and a lever drive (20) operatively connecting the press-on element (30) with the displaceable wall (17) for displacing the same in accordance with a transformation ratio between a press-on stroke and a displacement stroke of the displaceable wall (14).
Gschwend Hans
Rosenbaum Ulrich
Schiestl Ulrich
Abelman ,Frayne & Schwab
Hilti Aktiengesellschaft
Kamen Noah P.
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