(19)
(11) EP 4 285 397 A1

(12)

(43) Date of publication:
06.12.2023 Bulletin 2023/49

(21) Application number: 21706790.9

(22) Date of filing: 27.01.2021
(51) International Patent Classification (IPC): 
H01H 9/54(2006.01)
H01H 85/02(2006.01)
H01H 71/00(2006.01)
 H01H 33/59(2006.01)
H01H 45/00(2006.01)
(52) Cooperative Patent Classification (CPC):
H01H 9/548; H01H 9/547; H01H 33/596; H01H 2085/0283; H01H 45/00; H01H 71/00
(86) International application number:
PCT/US2021/015281
(87) International publication number:
WO 2022/164427 (04.08.2022 Gazette 2022/31)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(71) Applicant: Leach International Corporation
Buena Park, CA 90622-5032 (US)

(72) Inventors:
  • KHAN, Imtiaz, Ahmad
    Trabuco Canyon, CA 92679 (US)
  • TRAN, Anhtai, Le
    Garden Grove, CA 92841 (US)
  • CANTU, Kyle, Richard
    Santa Fe Springs, CA 90670 (US)

(74) Representative: Patentanwaltskanzlei Matschnig & Forsthuber OG 
Biberstraße 22 Postfach 36
1010 Wien
1010 Wien (AT)

   


(54) SYSTEM FOR PROTECTING ELECTROMECHANICAL SWITCHGEARS AND PROTECTION CIRCUITS IN HIGH-VOLTAGE APPLICATIONS