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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.:

US 12640324 B1

PDFFull Text
Date of Patent:
May. 26, 2026

Filed:

Mar. 27, 2024

Angular stepped u-core and armature plate system generating increased magnetic force for trip mechanism of circuit breaker

Applicant:

Eaton Intelligent Power Limited, Dublin, IE;

Inventors:

Sujit Subhash Patwardhan, Pune, IN;

Shashank Bharat Kadam, Pune, IN;

Sandip Nagtilak, Solapur, IN;

Yash Pandya, Bharuch, IN;

Assignee:

EATON INTELLIGENT POWER LIMITED, Dublin, IE;

Attorney:

Eckert Seamans Cherin & Mellott, LLC

Primary Examiner:

Mohamad A Musleh

Int. Cl.
CPC ...
H01H 71/24 (2006.01); H01H 71/52 (2006.01); H01H 71/04 (2006.01);
U.S. Cl.
CPC ...
H01H 71/2472 (2013.01); H01H 71/52 (2013.01); H01H 71/04 (2013.01);
Abstract

An improved magnetic trip mechanism for a circuit breaker includes a magnetizable U-shaped core and an armature whose shapes are advantageously designed to increase magnetic force within a compact footprint. In particular, the magnetizable U-core comprises step formations that enable the armature to be received at least partially within the U-core, thus enabling the armature to move a greater distance as compared to an arrangement including a non-stepped U-core while maintaining or decreasing the footprint of the circuit breaker. The arms of the U-core can additionally comprise slanted surfaces in order to further increase the surface area of the U-core and thus increase the number of magnetic field lines and magnetic force generated when the U-core is energized.

Find Patent Forward Citations

Patwardhan, Sujit. (2026). Angular stepped u-core and armature plate system generating increased magnetic force for trip mechanism of circuit breaker (U.S. Patent No. 12640324). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12640324

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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