US Patent 11910900 Containment mat that converts to luggage with secure seal

A convertible containment device includes a flexible base portion configured to substantially conform to a supporting surface when the device is in an open configuration, a wall affixed to a perimeter of the flexible base and extending away from the flexible base when the device is in the open configuration, and a cinch cord in operable relation with the wall, and forming a loop when the device is in the open configuration. The cinch cord is configured such that pulling the cinch cord causes the device to transform from the open configuration to a bag-like configuration by gathering the wall to form an annulus having an opening, and the opening of the annulus is sized to prohibit exit of an object from within the bag-like configuration.