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. 26, 2011
Filed:
Aug. 25, 2010
Matthew R. Darr, Godfrey, IL (US);
Jaime A. Torrez, O'Fallon, MO (US);
Anthony C. Ban, Foley, MO (US);
Robert S. Douglass, Wildwood, MO (US);
John M. Ackermann, Belleville, IL (US);
Matthew R. Darr, Godfrey, IL (US);
Jaime A. Torrez, O'Fallon, MO (US);
Anthony C. Ban, Foley, MO (US);
Robert S. Douglass, Wildwood, MO (US);
John M. Ackermann, Belleville, IL (US);
Cooper Technologies Company, Houston, TX (US);
Abstract
A fuse includes a fuse state indicator on the exterior surface of the fuse body. The fuse state indicator includes an electrically conductive element electrically connected to and extending between the terminal elements. A temperature sensitive element proximate and in thermal contact with the electrically conductive element includes material capable of changing color when heated to a predetermined transition temperature to form a mark on the temperature sensitive element. The fuse state indicator forms a first mark on the temperature sensitive element when heat from the electrically conductive element transfers to the temperature sensitive element in response to a first overcurrent condition, and forms a second mark, distinct from the first mark, on the temperature sensitive element when heat from the electrically conductive element transfers to the temperature sensitive element in response to a second overcurrent condition distinct from the first overcurrent condition.