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:
Jun. 08, 2004
Filed:
Apr. 26, 2002
Roderick E. Thorne, Palo Alto, CA (US);
Philip J. Keleshian, San Jose, CA (US);
Timothy R. Redler, Campbell, CA (US);
Joseph S. Chan, Milpitas, CA (US);
Nikola Cargonja, San Carlos, CA (US);
Savi Technology, Inc., Sunnyvale, CA (US);
Abstract
A device ( ) facilitates sealing and tracking of a container ( ). The device includes a bolt ( ) which extends through openings in a latch mechanism ( ) on the container. The bolt also passes through spaced coils ( ) of the seal device. The seal device uses one coil to generate a magnetic field, while monitoring the corresponding magnetic field induced in the other coil. Tampering with the bolt affects the magnetic field, which in turn permits the seal device to detect the tampering. The seal device periodically transmits wireless signals ( ), which can be remotely received for purposes of tracking the container and monitoring the integrity of the seal.