US 7,591,249 B2
Actuation structure for internal fuel cell metering valve and associated combustion tool
Mohamed K. Wagdy, Arlington Heights, Ill. (US); Valery H. Vanstaan, Highland Park, Ill. (US); and Eric S. Gibson, Round Lake, Ill. (US)
Assigned to Illinois Tool Works Inc., Glenview, Ill. (US)
Filed on Oct. 03, 2005, as Appl. No. 11/242,311.
Prior Publication US 2007/0074706 A1, Apr. 05, 2007
Int. Cl. F02B 71/00 (2006.01)
U.S. Cl. 123—495  [123/46 R; 222/402.15; 227/10] 22 Claims
OG exemplary drawing
 
1. An actuator for use with a combustion tool fuel cell having an internal metering valve, a valve stem and a closure with a peripheral rim, comprising:
a base portion with a depending lip configured for slidingly engaging the peripheral rim;
a stem receiving portion unitary with said base portion, having a bore for receiving the valve stem and an upper end being curved for receiving forces from a tool linkage and exerting at least one of an axial and a transverse force on the valve stem, said stem receiving portion also supporting a fuel tube in fluid communication with said valve stem and being in fluid communication with a combustion tool fuel line such that fuel from the fuel cell is transmitted into the fuel line.