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. 18, 2011
Filed:
Dec. 17, 2008
Jerome K. Hastings, Sussex, WI (US);
Xin Zhou, Franklin Park, PA (US);
Joseph C. Zuercher, Brookfield, WI (US);
Thomas J. Schoepf, Whitefish Bay, WI (US);
William E. Beatty, Jr., Beaver, PA (US);
Jerome K. Hastings, Sussex, WI (US);
Xin Zhou, Franklin Park, PA (US);
Joseph C. Zuercher, Brookfield, WI (US);
Thomas J. Schoepf, Whitefish Bay, WI (US);
William E. Beatty, Jr., Beaver, PA (US);
Gaton Corporation, Cleveland, OH (US);
Abstract
An electrical switching apparatus comprises: a first terminal; a second terminal; separable contacts electrically connected between the first terminal and the second terminal; an operating mechanism structured to open and close the separable contacts; and an arc fault trip circuit cooperating with the operating mechanism and structured to trip open the separable contacts responsive to an arc fault condition. An inductor is electrically connected in series between the first terminal and the second terminal. A capacitor includes a first lead electrically connected between the inductor and the second terminal, and a second lead electrically connected to a ground or neutral conductor. The inductor and the capacitor are structured to cooperate with a power circuit impedance downstream of the second terminal to form a filter trap circuit.