Internal-combustion engines – Free piston – Single chamber; one piston
Reexamination Certificate
2008-01-01
2008-01-01
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Free piston
Single chamber; one piston
C123S0460SC
Reexamination Certificate
active
11182208
ABSTRACT:
A combustion tool has a housing with an air intake end and an opposite bumper end, a combustion-powered power source in the housing including a cylinder encircling a reciprocating piston associated with a driver blade, and having at least one air port located at the bumper end below the piston. At least one air intake is located adjacent the air intake end and is provided with an air filter. At least one air passageway is provided in fluid communication with the at least one air port and in operational relationship with the air filter.
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Shkolnikov Yury
Taylor Walter J.
Benton Jason
Croll Mark W.
Cronin Stephen K.
Greer Burns & Crain Ltd.
Illinois Tool Works Inc.
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