US 11,865,679 B2
Battery powered impact wrench
Warren A. Seith, Bethlehem, PA (US); Justin T. Chellew, Bethlehem, PA (US); Nicholas Garibaldi, Princeton, NJ (US); Kevin M. Purdy, Westfield, NJ (US); Mark T. McClung, Andover, NJ (US); and Madan Kumar Mandal, Bangalore (IN)
Assigned to Ingersoll-Rand Industrial U.S., Inc., Davidson, NC (US)
Filed by INGERSOLL-RAND INDUSTRIAL U.S., INC., Davidson, NC (US)
Filed on Oct. 11, 2019, as Appl. No. 16/599,325.
Prior Publication US 2021/0107120 A1, Apr. 15, 2021
Int. Cl. B25B 21/02 (2006.01); B25F 5/02 (2006.01); B25D 17/04 (2006.01); B25D 17/06 (2006.01)
CPC B25B 21/023 (2013.01) [B25D 17/04 (2013.01); B25D 17/06 (2013.01); B25F 5/02 (2013.01); B25D 2211/006 (2013.01); B25D 2211/06 (2013.01); B25D 2216/0007 (2013.01); B25D 2217/0015 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An impact wrench, comprising:
a longitudinal housing having a first end and a second end, the second end opposite to the first end;
a motor disposed within the longitudinal housing, the motor having an axis of rotation aligned with the longitudinal housing, the motor proximate to the first end of the housing, the motor having a stator with a cross-sectional profile that is perpendicular to the axis of rotation;
a motor opening disposed on the longitudinal housing, the motor opening defining an outer circumference of the stator;
a hammer comprising a first drive member rotatably driven by the motor;
an anvil comprising a second drive member; the first drive member of the hammer periodically engaging and disengaging the second drive member of the anvil such that the first and second drive members impact against each other;
an output drive rotatably driven by the anvil;
a first battery dock for receiving a first battery for supplying power to the motor;
a second battery dock for receiving a second battery for supplying power to the motor; and
a handle disposed at the second end of the housing, the handle including a switch to turn the motor on and off;
wherein the first battery dock and the second battery dock are disposed between the motor and the handle and wherein the first battery dock and the second battery dock are disposed at opposite lateral sides from each other and fully within an outer boundary of the motor opening.