US 11,730,629 B2
Smart welding helmets
William Joshua Becker, Manitowoc, WI (US); and Joseph C. Schneider, Greenville, WI (US)
Assigned to ILLINOIS TOOL WORKS INC., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on Sep. 29, 2021, as Appl. No. 17/488,953.
Claims priority of provisional application 63/109,036, filed on Nov. 3, 2020.
Prior Publication US 2022/0133542 A1, May 5, 2022
Int. Cl. A61F 9/06 (2006.01); G05B 9/02 (2006.01); G08B 7/06 (2006.01); G08B 21/02 (2006.01); G08B 25/01 (2006.01)
CPC A61F 9/06 (2013.01) [G05B 9/02 (2013.01); G08B 7/06 (2013.01); G08B 21/02 (2013.01); G08B 25/016 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A welding helmet, comprising:
a helmet shell having a helmet shell exterior and a helmet shell interior, the helmet shell exterior comprising a first helmet shell external surface and a second helmet shell external surface that is connected to, and positioned on an opposite side of the helmet shell interior from, the first helmet shell external surface;
a cover lens having an outer surface;
a thermal conductor extending partway through the helmet shell into the helmet shell interior, such that the thermal conductor extends through the first helmet shell external surface but does not extend through the second helmet shell external surface;
a temperature sensor configured to measure a temperature of the thermal conductor within the helmet shell interior; and
control circuitry configured to output a signal in response to determining the temperature exceeds a temperature threshold.