US 11,806,848 B2
Pneumatic impact with light
Warren A. Seith, Bethlehem, PA (US); Huajun Tao, Shanghai (CN); Yunzhong Yu, Shanghai (CN); and Jinzhong Yang, Shanghai (CN)
Assigned to Ingersoll-Rand Industrial, Inc., Davidson, NC (US)
Filed by INGERSOLL-RAND INDUSTRIAL U.S., INC., Davidson, NC (US)
Filed on Sep. 13, 2019, as Appl. No. 16/570,653.
Prior Publication US 2021/0078148 A1, Mar. 18, 2021
Int. Cl. B25B 23/18 (2006.01); B25B 21/02 (2006.01); H02K 7/14 (2006.01); F21L 13/06 (2006.01); F21S 9/04 (2006.01)
CPC B25B 23/18 (2013.01) [B25B 21/02 (2013.01); B25B 21/023 (2013.01); F21L 13/06 (2013.01); F21S 9/04 (2013.01); H02K 7/145 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An impact tool that is pneumatically driven by compressed air or gas, the impact tool comprising:
a housing;
an output shaft passing through the housing and configured to receive a socket;
a pneumatically driven motor disposed within the housing, the pneumatically driven motor configured to rotate from the compressed air or gas and drive movement of the output shaft;
an electric generator configured to generate electrical power from rotation of the pneumatically driven motor being driven by the compressed air or gas;
a clutch to engage and disengage the electric generator to the pneumatically driven motor; and
a light source configured to be electrically powered using the electrical power generated by the electric generator, the light source disposed on the housing and at least substantially encircling the output shaft.