Elongated-member-driving apparatus – Explosive-type driving means – With plunger
Reexamination Certificate
2005-11-22
2005-11-22
Smith, Scott A. (Department: 3721)
Elongated-member-driving apparatus
Explosive-type driving means
With plunger
C227S130000, C123S0460SC
Reexamination Certificate
active
06966478
ABSTRACT:
A gas combustion-powered apparatus includes a piston chamber housing a driveable piston, and a combustion chamber having a generally flat wall assembly and a cup-shaped wall defining at least one combustion volume therebetween. The cup-shaped wall is moveable in relation to the piston chamber, and has a generally flat portion opposing, and generally parallel to, the generally flat wall assembly. An ignition source is in operable relationship to the combustion volume, which can ignite a combustible gas within the combustion volume. The piston forms at least a portion of the generally flat wall assembly when the piston is in an undriven state.
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Adams Joseph S.
Doherty James E.
Van Erden Donald L.
Croll Mark W.
Illinois Tool Works Inc
Smith Scott A.
Snider Josh C.
Soltis Lisa M.
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