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. 02, 2013
Filed:
Jun. 21, 2011
Daniel Patrick Heckenkamp, Oconomowoc, WI (US);
Matthew Wilbur Naiva, Wauwatosa, WI (US);
Thomas Francis Kurland, North Prairie, WI (US);
Daniel Patrick Heckenkamp, Oconomowoc, WI (US);
Matthew Wilbur Naiva, Wauwatosa, WI (US);
Thomas Francis Kurland, North Prairie, WI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
The disclosed concept provides for an operating mechanism in a overload relay assembly having a solenoid with a permanent magnet. The solenoid includes a ferrous output member. The solenoid moves the output member between a first retracted position and a second extended position. When the output member is in the first retracted position, the permanent magnet maintains the output member in the first retracted position. Thus, in a system wherein the overload relay assembly interrupts power to its own operating mechanism solenoid, the permanent magnet maintains the output member in the first retracted position even when the solenoid is de-energized.