| US 7,584,723 B2 | ||
| Combustion powered fastener-driving tool with interconnected chambers | ||
| Yury Shkolnikov, Glenview, Ill. (US); and Walter J. Taylor, Mchenry, Ill. (US) | ||
| Assigned to Illinois Tool Works Inc., Glenview, Ill. (US) | ||
| Filed on Oct. 10, 2007, as Appl. No. 11/870,185. | ||
| Application 11/870185 is a continuation of application No. 11/182208, filed on Jul. 15, 2005, granted, now 7,314,025. | ||
| Prior Publication US 2008/0029566 A1, Feb. 07, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. F02B 71/00 (2006.01) | ||
| U.S. Cl. 123—46H | 7 Claims |

| 1. A combustion tool, comprising:
a combustion-powered power source including a cylinder encircling a reciprocating piston associated with a driver blade, and
having at least one air port located at a bumper end of said power source located below said piston;
at least one air intake in fluid communication with said power source and being provided with an associated air filter; and
at least one air passageway in fluid communication with said at least one air port and in operational relationship with said
air filter.
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