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:
Nov. 26, 2002
Filed:
Jun. 13, 2000
Thomas Edward Natili, Butler City, PA (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A circuit breaker includes a pair of separable contacts forming a pole, an operating mechanism for operating the electrical contacts, an electronic trip circuit responsive to currents flowing through the pole for operating the operating mechanism in response to predetermined current conditions to open the separable contacts, and a fail-safe mechanism for operating the operating mechanism in response to a failure in the electronic trip circuit. The fail-safe mechanism includes a solenoid that is electrically connected to be energized in response to a failure in the electronic trip circuit and a linkage that operates the operating mechanism in response to operation of the solenoid. An operating arm that moves in response to the solenoid, interacts with operating mechanism to prevent resetting of the operating mechanism following actuation of the solenoid.