Combustion type power tool facilitating cleaning to internal...

Details Combustion type power tool facilitating cleaning to internal... Combustion type power tool facilitating cleaning to internal...

2007-08-28

2007-08-28

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Free piston

Single chamber; one piston

C227S008000

Reexamination Certificate

active

11417064

ABSTRACT:
A combustion-type power tool including a housing, a combustion chamber provided in the housing, an ignition plug exposed to the combustion chamber, a cleaning passage communicatable with the combustion chamber, and a shut-off unit provided in the cleaning passage.

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patent: RE32452 (1987-07-01), Nikolich
patent: 5680980 (1997-10-01), Robinson
patent: 5909836 (1999-06-01), Shkolnikov
patent: 7044090 (2006-05-01), Ohtsu et al.
patent: 0 775 553 (1997-05-01), None
patent: 0 913 234 (1999-05-01), None

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