US 12,420,394 B2
Gas spring-powered fastener driver
Andrew R. Wyler, Pewaukee, WI (US); Nathan T. Armstrong, Fox Point, WI (US); Jason D. Thurner, Menomonee Falls, WI (US); Troy C. Thorson, Cedarburg, WI (US); John S. Scott, Brookfield, WI (US); Jeremy R. Ebner, East Troy, WI (US); Daniel R. Garces, Waukesha, WI (US); Ryan A. Dedrickson, Sussex, WI (US); Luke J. Skinner, West Bend, WI (US); and Benjamin R. Suhr, Milwaukee, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Feb. 2, 2024, as Appl. No. 18/430,944.
Application 18/430,944 is a continuation of application No. 17/382,972, filed on Jul. 22, 2021, granted, now 11,926,028.
Application 17/382,972 is a continuation of application No. 16/201,111, filed on Nov. 27, 2018, granted, now 11,072,058, issued on Jul. 27, 2021.
Application 16/201,111 is a continuation of application No. 15/017,291, filed on Feb. 5, 2016, granted, now 10,173,310, issued on Jan. 8, 2019.
Claims priority of provisional application 62/279,408, filed on Jan. 15, 2016.
Claims priority of provisional application 62/240,801, filed on Oct. 13, 2015.
Claims priority of provisional application 62/113,050, filed on Feb. 6, 2015.
Prior Publication US 2024/0165780 A1, May 23, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B25C 1/04 (2006.01); B25C 1/06 (2006.01)
CPC B25C 1/06 (2013.01) [B25C 1/047 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A gas spring-powered fastener driver comprising:
a cylinder containing pressurized gas;
a moveable piston positioned within the cylinder;
a driver blade attached to the piston and movable therewith between a ready position and a driven position;
a lifter configured to move the driver blade from the driven position to the ready position to compress the pressurized gas;
a transmission including an output shaft operatively coupled to the lifter to provide torque to the lifter;
an input configured to provide torque to the transmission; and
a clutch including a ring gear with an annular front end having lugs defined thereon, the clutch further including detent members engageable with the lugs to inhibit rotation of the ring gear, the clutch positioned downstream of the input and operably coupled to the output shaft to limit an amount of torque transferred to the output shaft and the lifter,
wherein, in response to an application of a reaction torque to the output shaft above a predetermined threshold, torque from the input is diverted from the output shaft to the ring gear.