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:
Jul. 16, 2013
Filed:
Aug. 10, 2010
Evgeni Sorkine, Moscow, RU;
Brian L. Clothier, Wichita, KS (US);
Evgeni Sorkine, Moscow, RU;
Brian L. Clothier, Wichita, KS (US);
TSI Technologies LLC, Wichita, KS (US);
Abstract
One-time, single-use sensor elements () are provided for detecting the occurrence of predetermined conditions such as temperature and elapsed time-temperature. The sensor elements () preferably comprise elongated, glass-coated, metal alloy, amorphous or nanocrystalline microwires (), which can be placed in a position to detect the predetermined condition of interest. An alternating magnetic field detector () may be used to continuously or periodically interrogate the sensor elements () to determine if the predetermined condition has occurred. In one aspect of the invention, the microwires () experience a change in configuration upon the occurrence of the predetermined condition, and have correspondingly different induced remagnetization responses. In another embodiment, a static microwire is provided having an initial bi-stable single domain; when a predetermined time-temperature condition is experienced, multiple domains are established in the microwire, and this can be detected by the detector ().