Door lock system for trailers and cargo containers

Details Door lock system for trailers and cargo containers Door lock system for trailers and cargo containers

2005-06-18

2009-02-03

Gall, Lloyd A (Department: 3673)

Locks

Special application

For automotive vehicles

C070S092000, C070S140000, C070S280000, C070S432000, C070S465000, C292S021000, C292S092000, C292S144000, C292S155000, C292SDIG065

Reexamination Certificate

active

07484391

ABSTRACT:
A door lock system for enclosures is provided which includes a screw drive mechanism releasably mounted on a back plate member and coupled via threads to a threaded locking member to linearly drive the locking member to engage with a receptor on an enclosure frame to lock the enclosure. A controller unit has an integrated circuit configured to control the operation of the screw drive mechanism and report the status of the door to a central location. A position switch is used to indicate whether the door is open or closed so that the controller unit can automatically engage the screw drive mechanism to lock the door after a preset time delay. A keypad allows a user to enter a code to unlock the door. A radio in the controller unit permits wireless communication to report status and to allow central command control over the doors.

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