US 12,334,673 B2
Hazardous environment electrical feedback barrier device, assembly, system and method
Paul R. York, Ellalong (AU)
Assigned to Eaton Intelligent Power Limited, Dublin (IE)
Filed by Eaton Intelligent Power Limited, Dublin (IE)
Filed on Apr. 17, 2024, as Appl. No. 18/638,338.
Application 18/638,338 is a division of application No. 16/785,264, filed on Feb. 7, 2020, granted, now 11,978,980.
Claims priority of provisional application 62/805,790, filed on Feb. 14, 2019.
Prior Publication US 2024/0283193 A1, Aug. 22, 2024
Int. Cl. H01L 29/866 (2006.01); H01L 29/872 (2006.01); H01R 13/527 (2006.01); H01R 13/533 (2006.01); H02B 1/16 (2006.01); H04N 7/18 (2006.01); H10D 8/25 (2025.01); H10D 8/60 (2025.01)
CPC H01R 13/527 (2013.01) [H01R 13/533 (2013.01); H02B 1/16 (2013.01); H04N 7/18 (2013.01); H10D 8/25 (2025.01); H10D 8/60 (2025.01)] 15 Claims
OG exemplary drawing
 
1. An electrical power system for a hazardous environment comprising:
an explosion-proof or flameproof enclosure;
an electrical feedback barrier and a non-intrinsically safe electrical load device each provided in the explosion-proof enclosure and being electrically connected to one another; and
wherein the electrical feedback barrier is operative to isolate electrical feedback from the non-intrinsically safe electrical load device from reaching an intrinsically safe power supply remotely located from but connected to the electrical feedback barrier, thereby preventing an unsafe operation of the intrinsically safe power supply in the hazardous environment; and
wherein the electrical feedback barrier is connected to earth ground through the explosion-proof or flameproof enclosure and is operative to isolate the intrinsically safe power supply from the non-intrinsically safe load device and prevent electrical feedback from reaching the intrinsically safe power supply by shunting the electrical feedback to the earth ground.