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:
Sep. 29, 2020
Filed:
May. 14, 2020
Applicant:
Ym Tech Co., Ltd., Cheongju-si, Chungcheongbuk-do, KR;
Inventors:
Assignee:
YM Tech Co., Ltd., Cheongju-si, KR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H 67/02 (2006.01); H01H 36/00 (2006.01);
U.S. Cl.
CPC ...
H01H 36/00 (2013.01); H01H 2036/0093 (2013.01);
Abstract
A direct current (DC) switching apparatus is provided. The DC switch apparatus includes an auxiliary contact device includes at least one pair of stationary contacts; one or more coils, a movable iron core that is driven by the one or more coils; a movable contact table operating in engagement with the movable iron core, and an auxiliary contact device arranged below the movable iron core. The auxiliary contact device includes a microswitch.