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:
May. 20, 2014
Filed:
Jun. 06, 2011
Applicants:
Willy Feller, Rombach, CH;
Beat Villiger, Reinach, CH;
Inventors:
Willy Feller, Rombach, CH;
Beat Villiger, Reinach, CH;
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 67/02 (2006.01); H01H 9/00 (2006.01); H01F 7/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems and methods provide a magnetic actuator having more than one air gap. After the trip unit is triggered, a first armature is accelerated to quickly close a first air gap and then mate with a second armature. The first and second armature then move toward a core to close a second air gap and reach the final combined armature position, causing a contact to open. A faster reaction time is provided, yet without increasing the number of turns of the trip coil winding, and provides a more efficient actuator.