Double door security rural mailbox with automatic signalling means

摘要

A mailbox having a mail carrier door and an owner's door with a signal flag moveably mounted thereatop to indicate the presence or absence of mail therein. A mechanism within the mailbox has a pair of slidable members mounted to a downwardly extending bracket with a flag rod extending through each member and moveable thereby. A pair of springs urge the first member toward the mail carrier door and the second member against the owner's door. A pivotable extension mounted to the mail carrier door is engaged by the mechanism to prevent opening thereof until the owner's door is open allowing the second member to slide therethrough releasing the extension.