Internal-combustion engines – Free piston – Single chamber; one piston
Reexamination Certificate
2007-02-13
2007-02-13
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Free piston
Single chamber; one piston
C123S0460SC
Reexamination Certificate
active
11232183
ABSTRACT:
A combustion-engined setting tool (10) for driving in fastening elements such as bolts, nails, and the like in a constructional components includes an inlet/outlet valve arrangement (20) that connects the combustion chamber (13) of the setting tool (10), which is filled with an air-fuel mixture, with at least two tool openings (33, 34), has an inlet (21) connectable with a first tool opening (33) and an outlet (22) connectable with the second tool opening (34).
REFERENCES:
patent: 6260519 (2001-07-01), Phillips
patent: 6491002 (2002-12-01), Adams
patent: 6520127 (2003-02-01), Thieleke et al.
patent: 2005/0098123 (2005-05-01), Miyata et al.
patent: 2006/0042573 (2006-03-01), Nishikawa et al.
patent: 2006/0102111 (2006-05-01), Ohmori et al.
patent: 2006/0185630 (2006-08-01), Fujisawa et al.
Hertlein Peter
Wolf Iwan
Zahner Mario
Abelman ,Frayne & Schwab
Benton Jason
Cronin Stephen K.
Hilti Aktiengesellschaft
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