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:
Jul. 07, 2009
Filed:
Feb. 27, 2007
Xin Zhou, Franklin Park, PA (US);
John J. Shea, Pittsburgh, PA (US);
Joseph C. Engel, Monroeville, PA (US);
Kevin L. Parker, Pittsburgh, PA (US);
Theodore J. Miller, Oakdale, PA (US);
Xin Zhou, Franklin Park, PA (US);
John J. Shea, Pittsburgh, PA (US);
Joseph C. Engel, Monroeville, PA (US);
Kevin L. Parker, Pittsburgh, PA (US);
Theodore J. Miller, Oakdale, PA (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An arc fault circuit interrupter includes separable contacts, a neutral conductor, an operating mechanism structured to open and close the separable contacts, at least one current sensor structured to sense current flowing through the separable contacts and output a sensed current value; and a processor. The processor includes a first routine structured to provide parallel arc fault detection, a second routine structured to provide series arc fault detection, and a third routine structured to enable the first routine and disable the second routine for a predetermined time when the sensed current value is greater than a predetermined value and to enable the second routine and disable the first routine for the predetermined time when the sensed current value is less than the predetermined value.