The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2019
Filed:
Jun. 13, 2018
Applicant:
Lsis Co., Ltd., Anyang-si, Gyeonggi-do, KR;
Inventors:
Seungpil Yang, Anyang-si, KR;
Sangchul Lee, Anyang-si, KR;
Youngkook Kim, Anyang-si, KR;
Ilhyun Kim, Anyang-si, KR;
Assignee:
LSIS CO., LTD., Anyang-si, Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 21/04 (2006.01); H01H 21/54 (2006.01); H01H 71/56 (2006.01); H01H 71/04 (2006.01); H01H 71/12 (2006.01); H01H 71/08 (2006.01); H01H 1/44 (2006.01); H01H 21/50 (2006.01);
U.S. Cl.
CPC ...
H01H 71/04 (2013.01); H01H 71/08 (2013.01); H01H 71/12 (2013.01); H01H 71/128 (2013.01); H01H 71/56 (2013.01); H01H 1/44 (2013.01); H01H 21/04 (2013.01); H01H 21/50 (2013.01); H01H 21/54 (2013.01); H01H 71/123 (2013.01); H01H 2071/046 (2013.01);
Abstract
A direct-current (DC) air circuit breaker for opening and closing a circuit according to various embodiments includes a circuit unit having a main circuit, a detecting unit having a detection circuit for detecting a fault current in the main circuit, and a circuit operating device configured to allow connection or isolation between the main circuit and the detection circuit.