Patent ID: 8544973

Claim:
A refrigerator comprising: a cabinet; a first storage chamber defined within the cabinet; a first door configured to open and close at least a portion of the first storage chamber by rotating; a first hinge that attaches an upper portion of the first door; a second hinge that attaches a lower portion of the first door to a lower portion of the cabinet; a second storage chamber that is smaller than the first storage chamber, that is defined at a side of the first door, that is configured to move with the first door when the first door rotates between opened and closed positions, and that is located in the first storage chamber when the first door is oriented in a closed position; a second door that is configured to open and close the second storage chamber by rotating in a same direction as the first door, that enables access to the second storage chamber when the first door is oriented in a closed position, that spans an entire width of the first door, and that has a height that is less than a height of the first door; a third hinge that attaches an upper portion of the second door and that is positioned adjacent to the first hinge; and a fourth hinge that attaches a lower portion of the second door to the first door at a location of the first door that is between the first and second hinges, wherein the first hinge and the third hinge are part of a single hinge assembly, and wherein the single hinge assembly comprises a single rotational shaft that is coupled to the first door and the second door and that establishes a single rotational axis for the first door and the second door, wherein the single hinge assembly comprises: a first connection member in which a first end of the first connection member is coupled to an upper surface of the cabinet and a second end of the first connection member is connected to an upper surface of the second door through the single rotational shaft; and a second connection member in which a first end of the second connection member is coupled to an upper surface of the first door and a second end of the second connection member is connected to the upper surface of the second door through the single rotational shaft, wherein the second connection member is located below the first connection member.