US 11,938,594 B2
High torque impact tool
Jacob P. Schneider, Madison, WI (US); Evan Brown, Milwaukee, WI (US); Leonard Mikat-Stevens, Milwaukee, WI (US); and Connor Temme, Medford, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Oct. 31, 2022, as Appl. No. 18/051,226.
Application 18/051,226 is a continuation of application No. 16/723,736, filed on Dec. 20, 2019, granted, now 11,484,997.
Claims priority of provisional application 62/875,656, filed on Jul. 18, 2019.
Claims priority of provisional application 62/802,858, filed on Feb. 8, 2019.
Claims priority of provisional application 62/783,673, filed on Dec. 21, 2018.
Prior Publication US 2023/0080957 A1, Mar. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B25B 21/02 (2006.01); B25B 23/16 (2006.01)
CPC B25B 21/02 (2013.01) [B25B 23/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An impact tool comprising:
a housing including a motor housing portion and a front housing coupled to the motor housing portion;
a motor supported within the motor housing portion;
a battery pack supported by the housing for providing power to the motor; and
a drive assembly supported within the housing and configured to convert continuous torque from the motor to consecutive rotational impacts upon a workpiece capable of developing at least 1,700 ft-lbs of fastening torque, the drive assembly including
a camshaft driven by the motor for rotation about an axis,
an anvil extending from the front housing, and
a hammer configured to reciprocate along a travel portion of the camshaft between a rearmost position and a forwardmost position to deliver rotational impacts to the anvil in response to rotation of the camshaft.