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:
Apr. 12, 2005
Filed:
Feb. 05, 2003
Edward E. Lias, Aliquippa, PA (US);
Michael J. Whipple, Rochester, PA (US);
Jeffrey S. Gibson, Hookstown, PA (US);
Michael W. Nordmeyer, Glen Gardner, NJ (US);
Ronald D. Smiddle, Canonsburg, PA (US);
Edward E. Lias, Aliquippa, PA (US);
Michael J. Whipple, Rochester, PA (US);
Jeffrey S. Gibson, Hookstown, PA (US);
Michael W. Nordmeyer, Glen Gardner, NJ (US);
Ronald D. Smiddle, Canonsburg, PA (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A circuit breaker includes separable contacts and an operating mechanism having a cradle for opening and closing the separable contacts. A trip mechanism cooperates with the cradle of the operating mechanism to trip open the separable contacts. The trip mechanism includes a bimetal conductor, which is electrically connected in series with the separable contacts. The trip mechanism is responsive to a predetermined condition of current flowing in the bimetal conductor. The trip mechanism also includes a magnetic yoke coupled to the bimetal conductor, an armature pivotally mounted to the magnetic yoke, and a spring biasing the armature away from the magnetic yoke. The spring is set apart from the bimetal conductor. The spring is coupled to the armature and engages the magnetic member.