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
OG exemplary drawing
 
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.