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:
Sep. 09, 2014
Filed:
Dec. 30, 2010
Brian Frederick Mooney, Plainville, CT (US);
Thomas Frederick Papallo, Plainville, CT (US);
Brent Charles Kumfer, Plainville, CT (US);
Brian Frederick Mooney, Plainville, CT (US);
Thomas Frederick Papallo, Plainville, CT (US);
Brent Charles Kumfer, Plainville, CT (US);
General Electric Company, Schenectady, CT (US);
Abstract
A thermal trip unit for a circuit breaker having a primary conductive path for conducting a load current is provided. The thermal trip unit comprises a shape memory alloy (SMA) member adapted to change from a first shape to a second shape at a predetermined thermal condition, a holding member coupled electrically in series with the circuit breaker primary conductive path, said holding member arranged to operatively support said SMA member, wherein said SMA member is configured and disposed within the circuit breaker to trigger a trip response of the circuit breaker at said predetermined thermal condition.