US 10,888,946 B2
TIG gun power pin for welding device or system and multi-process welder with a single gas flow path
Samuel P Crescenze, Massillon, OH (US); Brian M. Turk, Sagamore Hills, OH (US); Alexander C. Mehlman, Strongsville, OH (US); and Jonathan D. Rosenberger, Santa Ana, CA (US)
Assigned to LINCOLN GLOBAL, INC., Santa Fe Springs, CA (US)
Filed by Lincoln Global, Inc., City of Industry, CA (US)
Filed on Feb. 9, 2018, as Appl. No. 15/893,133.
Claims priority of provisional application 62/457,413, filed on Feb. 10, 2017.
Prior Publication US 2018/0229325 A1, Aug. 16, 2018
Int. Cl. B23K 9/10 (2006.01); B23K 9/167 (2006.01); B23K 9/173 (2006.01); B23K 9/32 (2006.01)
CPC B23K 9/1012 (2013.01) [B23K 9/1056 (2013.01); B23K 9/1062 (2013.01); B23K 9/1068 (2013.01); B23K 9/1087 (2013.01); B23K 9/167 (2013.01); B23K 9/173 (2013.01); B23K 9/325 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A welding system, comprising:
a multi-process power supply comprising a power output connection for a MIG torch and a controller, wherein the controller is configured to command shielding gas and welding current to be provided to the power output connection, and wherein the power output connection is configured to provide the shielding gas and the welding current to the MIG torch when the MIG torch is connected to the power output connection;
a TIG torch assembly comprising a TIG torch and a control member for controlling a level of the welding current, wherein the control member is in circuit communication with the controller of the multi-process power supply when the control member is connected to the multi-process power supply;
a TIG power pin for alternatively connecting the TIG torch to the power output connection of the multi-process power supply, such that the power output connection is configured to provide the shielding gas and the welding current to the TIG torch when the TIG power pin connects the TIG torch to the power output connection;
wherein the controller is configured to set the multi-process power supply to a TIG welding mode when at least one of the control member and the TIG power pin is connected to the multi-process power supply such that at least one of the shielding gas and the welding current is not provided to the TIG torch through the power output connection until a user engages the control member,
wherein the power output connection comprises a female connection portion, wherein the TIG power pin comprises an insertion portion that is disposed within the female connection portion when the TIG power pin is connected to the power output connection and a body portion that extends from the female connection portion when the TIG power pin is connected to the power output connection, and wherein the insertion portion comprises at least one flow channel or port that aligns with a gas port of the power output connection when the TIG power pin is connected to the multi-process power supply, and
wherein the TIG power pin comprises a sleeve that covers the body portion when the TIG power pin is connected to the power output connection.