US 12,434,365 B2
Microfastener driving tool with gas spring
Thomas A. McCardle, Fairfield, OH (US); and Christopher D. Klein, Cincinnati, OH (US)
Assigned to Kyocera Senco Industrial Tools, Inc., Cincinnati, OH (US)
Filed by Kyocera Senco Industrial Tools, Inc., Cincinnati, OH (US)
Filed on Jul. 13, 2023, as Appl. No. 18/221,507.
Claims priority of provisional application 63/461,961, filed on Apr. 26, 2023.
Claims priority of provisional application 63/389,527, filed on Jul. 15, 2022.
Prior Publication US 2024/0017387 A1, Jan. 18, 2024
Int. Cl. B25C 1/04 (2006.01)
CPC B25C 1/041 (2013.01) [B25C 1/047 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A portable fastener driving tool, comprising:
a pressurized gas system comprising:
a pressure chamber including a first side storage chamber and a second side storage chamber; and
a working cylinder that includes a movable piston, wherein the working cylinder exhibits a first end, an opposite second end, and a longitudinal axis that extends at least between the first end and the second end;
wherein:
the pressure chamber extends along the longitudinal axis of the working cylinder, and exhibits an inverted U-shape in transverse cross-section, the inverted U-shape having a top bend portion, a first extended leg, and a second extended leg;
the working cylinder is located proximal to the top bend portion of the inverted U-shape;
the first side storage chamber is located at the first extended leg of the inverted U-shape, and extends along a first side portion of the working cylinder;
the second side storage chamber is located at the second extended leg of the inverted U-shape, and extends along a second side portion of the working cylinder;
the first side storage chamber and the second side storage chamber are operable to be in fluidic communication with at least a portion of the working cylinder; and
the pressure chamber is operable to contain pressurized gas.