Elongated-member-driving apparatus – Explosive-type driving means – With plunger
Reexamination Certificate
2005-09-29
2008-12-23
Nash, Brian D (Department: 3721)
Elongated-member-driving apparatus
Explosive-type driving means
With plunger
C227S002000, C227S156000, C227S009000
Reexamination Certificate
active
07467739
ABSTRACT:
A combustion-powered, fastener-driving tool includes a cylinder and a combustion chamber disposed on top of the cylinder that accommodates a gaseous mixture of existing air in the combustion chamber and fuel injected therein. A spark plug generates a spark to combust the gaseous mixture in the combustion chamber. A trigger produces the spark in the spark plug when operated. A piston is movably supported in the cylinder and driven by combustion in the combustion chamber. A driving blade is coupled to the piston for driving a fastener. A spark controller is provided for generating a plurality of sparks in succession with the spark plug.
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Akiba Yoshitaka
Fujisawa Haruhisa
Ishimaru Kenro
Nishikawa Tomomasa
Takano Nobuhiro
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Koki Co,. Ltd.
Nash Brian D
LandOfFree
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