US 12,251,809 B2
Dosing lever for fastener driving tool
Adam J. Frank, Gurnee, IL (US); and Ninad C. Maniar, Chicago, IL (US)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on Nov. 16, 2022, as Appl. No. 18/056,119.
Claims priority of provisional application 63/282,400, filed on Nov. 23, 2021.
Prior Publication US 2023/0158654 A1, May 25, 2023
Int. Cl. B25C 1/18 (2006.01); B25C 1/08 (2006.01); B25C 5/10 (2006.01)
CPC B25C 1/18 (2013.01) [B25C 1/08 (2013.01); B25C 5/10 (2013.01)] 8 Claims
OG exemplary drawing
 
5. A fastener driving tool comprising:
a housing;
a fastener driving assembly at least partially positioned in the housing, the fastener driving assembly including:
a cylinder head connected to the housing,
a combustion chamber connected to the cylinder head,
a cylinder connected to the combustion chamber, and
a combustion chamber ring between the combustion chamber and the cylinder head, the combustion chamber ring movable from an actuated position to a non-actuated position;
a workpiece contact assembly connected to the housing; and
a fuel supply assembly at least partially in the housing, the fuel supply assembly including:
a fuel cell receiving assembly in the housing, the fuel cell receiving assembly configured to receive a fuel cell and a fuel cell adapter connectible to the fuel cell;
a fuel cell receiving block shaped and sized to receive the fuel cell adapter, and
a dosing lever pivotally supported by the housing and pivotable from a non-actuated position to an actuated position to cause a dose of fuel to be dispensed from the fuel cell, the dosing lever including a first contact surface engagable with the cylinder head when the dosing lever is in the non-actuated position and a second contact surface that is slidably engageable by a ring finger of the combustion chamber ring when the dosing lever is moved from the non-actuated position to the actuated position,
wherein the dosing lever includes a body including a leg connection section, a fuel cell door facing section, and a fuel block contact section, and
wherein the fuel cell door facing section of the body of the dosing lever includes a first beveled portion, a second beveled portion connected to a first end of the first beveled portion, and a third beveled portion connected to a second end of the first beveled portion opposite the first end.