Patent ID: 7828344

Claim:
A seal lock, comprising: (a) a bolt comprising, (i) a shaft having a proximal portion and a distal portion, (ii) a head located at the proximal portion of the shaft, the head being wider than the distal portion of the shaft, and (iii) a microchip containing a unique serial number of the bolt; (b) a locking body having a passageway with an open end for receiving and retaining the distal portion of the shaft of the bolt in locking engagement after the shaft has been inserted a predetermined extent into the open end of the passageway, at which point the shaft cannot be withdrawn from the open end of the passageway; (c) a housing connected to the locking body such that the housing and locking body are rotatable relative to each other, the housing comprising, (i) electronics therein for storing and communicating data associated with the shipping container, the electronics including, (A) a microprocessor, (B) memory for storing data, (C) a wireless communication component configured to wirelessly communicate data, and (ii) a power source for powering the electronics; and (d) wherein the electronics in the housing are configured to read the unique serial number of the bolt from the microchip when the bolt is in the locking engagement with the locking body, and are configured to detect cutting of the bolt when in the locking engagement with the locking body.