US 12,263,544 B2
Adjustable cover for air recirculation in a power supply
Timothy Dale Taylor, Fond du Lac, WI (US); and David Radtke, Appleton, WI (US)
Assigned to ILLINOIS TOOL WORKS INC., Glenview, IL (US)
Filed by ILLINOIS TOOL WORKS INC., Glenview, IL (US)
Filed on Dec. 15, 2020, as Appl. No. 17/122,105.
Application 17/122,105 is a continuation of application No. 15/795,919, filed on Oct. 27, 2017, granted, now 10,894,295.
Claims priority of provisional application 62/565,778, filed on Sep. 29, 2017.
Prior Publication US 2021/0094115 A1, Apr. 1, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B23K 9/10 (2006.01); F01P 7/02 (2006.01); F02B 63/04 (2006.01)
CPC B23K 9/1006 (2013.01) [F01P 7/02 (2013.01); F02B 63/044 (2013.01); F01P 2050/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A welding power supply, comprising:
a radiator thermally coupled to an engine;
an enclosure housing the radiator and engine, the enclosure comprising:
a ventilation plate having ventilation slots at a first end and a recirculation opening at a second end,
a ventilation opening in fluid communication with the ventilation plate, and
a cover being movable between a closed position in which the cover obstructs at least a portion of the ventilation opening, and an open position in which the cover does not obstruct a portion of the ventilation opening,
wherein the cover is configured to recirculate air through the recirculation opening when the cover is in the closed position.