US Patent 10383471 Package protecting delivery receptacle with expandable attachment bracket

A package-protecting delivery receptacle is attached to a front of the door by a sheet metal belt structure that slidably extends laterally on two sides of the receptacle and around two sides of the door, and in which a clamping mechanism that includes a rotatable clamping knob with a rubber or soft plastic contact surface secures the belt structure to a rear surface of two horizontally-opposed sides of the door. The clamping mechanism is removably attached to the belt structure by a slot and tab, or by a tongue and slider securing arrangement. The belt structure may be made up of two bracket sections that are independently extendable from the two lateral sides of the receptacle.