Adjustable threshold device

An adjustable door threshold device, comprising:

• a base;
• an interior plate supported by the base;
• an second plate supported by the base;
• a threshold comprising an upper surface of the interior plate and an upper surface of the second plate;
• a door lip mating surface transverse to the interior plate;
• and,
• a linear actuator configured to move the interior plate between a lowered position and a raised position, when the interior plate is in the raised position adjacent portions of the interior plate and the second plate are substantially co-planer, when the interior plate is in the lowered position the interior plate is recessed from the second plate and the door lip mating surface extends above the interior plate.

An adjustable door threshold device, comprising:

• a movable threshold surface;
• a fixed threshold surface;
• a door lip mating surface positioned transverse to the movable threshold surface and between the movable threshold surface and the fixed threshold surface, and;
• a linear actuator configured to move the movable threshold surface from a lowered position to a raised position, when the movable threshold surface is in the raised position adjacent portions of the movable threshold surface and the fixed threshold surface are substantially horizontally aligned and the door lip mating surface does not extend substantially above the movable threshold surface, when the movable threshold surface is in the lowered position the movable threshold surface is recessed from the fixed threshold surface and the door lip mating surface extends above the movable threshold surface.