US Patent 7360805 Double lock sliding door

A double lock system for use combination with sliding door assemblies to prevent unwanted movement of the door assembly. The double lock system, a user, such as a homeowner provides a tubing having sleeves that interface and engage the tubing into a bracket assembly and then locks all the parts together with locking pins. The door lock system has a tubing section that interfaces with at least one sleeve to adjust an overall width of the tubing and sleeve combination; and a bracket assembly securely mounted to the door assembly for receiving and retaining the tubing and sleeve combination in a fixed position relative to the door assembly.